BTRFS info (device loop1): force clearing of disk cache [ 65.087761][ T5157] BTRFS info (device loop1): turning off barriers [ 65.088617][ T5157] BTRFS info (device loop1): enabling ssd optimizations [ 65.089695][ T5157] BTRFS info (device loop1): using spread ssd allocation scheme [ 65.090979][ T5157] BTRFS info (device loop1): using free space tree [ 65.115854][ T5162] loop4: detected capacity change from 0 to 32768 [ 65.125408][ T5162] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.149 (5162) [ 65.137647][ T4610] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4610) [ 65.162711][ T4644] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4644) [ 65.273003][ T4556] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 65.281840][ T5157] BTRFS info (device loop1): rebuilding free space tree [ 65.314295][ T5157] BTRFS info (device loop1): scrub: started on devid 1 [ 65.316228][ T5157] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 65.317515][ T5157] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 65.318769][ T5157] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 65.320732][ T5157] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 65.322088][ T5157] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 65.323514][ T5157] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 65.324654][ T5157] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 65.325974][ T5157] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 65.334143][ T5186] loop2: detected capacity change from 0 to 32768 [ 65.335842][ T5186] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.153 (5186) [ 65.348305][ T5169] loop3: detected capacity change from 0 to 32768 [ 65.354538][ T5157] BTRFS info (device loop1): scrub: finished on devid 1 with status: 0 [ 65.368082][ T5169] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.152 (5169) [ 65.380087][ T4442] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 65.546922][ T5189] loop0: detected capacity change from 0 to 32768 [ 65.552300][ T5189] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.154 (5189) [ 65.566364][ T5189] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 65.568130][ T5189] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 65.569397][ T5189] BTRFS info (device loop0): setting nodatacow, compression disabled [ 65.570675][ T5189] BTRFS info (device loop0): setting datacow [ 65.571601][ T5189] BTRFS info (device loop0): doing ref verification [ 65.572659][ T5189] BTRFS info (device loop0): force clearing of disk cache [ 65.583602][ T5189] BTRFS info (device loop0): turning off barriers [ 65.584641][ T5189] BTRFS info (device loop0): enabling ssd optimizations [ 65.585747][ T5189] BTRFS info (device loop0): using spread ssd allocation scheme [ 65.586960][ T5189] BTRFS info (device loop0): using free space tree [ 65.656468][ T5191] loop4: detected capacity change from 0 to 32768 [ 65.675474][ T5191] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.155 (5191) [ 65.711574][ T5199] loop1: detected capacity change from 0 to 32768 [ 65.716204][ T5199] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.156 (5199) [ 65.762432][ T5189] BTRFS info (device loop0): rebuilding free space tree [ 65.781992][ T5189] BTRFS info (device loop0): scrub: started on devid 1 [ 65.793809][ T5189] BTRFS info (device loop0): left=0, need=98304, flags=2 [ 65.794811][ T5189] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 65.795968][ T5189] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 65.797885][ T5189] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 [ 65.799129][ T5189] BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 [ 65.800267][ T5189] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 65.801375][ T5189] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 65.802470][ T5189] BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 [ 65.806374][ T5197] loop3: detected capacity change from 0 to 32768 [ 65.808044][ T5197] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.158 (5197) [ 65.826014][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 65.835637][ T5189] BTRFS info (device loop0): scrub: finished on devid 1 with status: 0 [ 65.875552][ T5195] loop2: detected capacity change from 0 to 32768 [ 65.877092][ T5195] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.157 (5195) [ 65.893677][ T4440] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 66.003002][ T4644] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop0 scanned by udevd (4644) [ 66.151194][ T5223] loop1: detected capacity change from 0 to 32768 [ 66.153057][ T5223] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 66.172477][ T5002] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 66.205388][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 66.308034][ T5229] loop4: detected capacity change from 0 to 32768 [ 66.309674][ T5229] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 66.358746][ T4556] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 66.430933][ T4549] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 66.476486][ T5234] loop2: detected capacity change from 0 to 32768 [ 66.493523][ T5234] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 66.545887][ T5232] loop3: detected capacity change from 0 to 32768 [ 66.547542][ T5232] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 66.550536][ T5236] loop1: detected capacity change from 0 to 32768 [ 66.561995][ T5236] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 66.650222][ T5240] loop4: detected capacity change from 0 to 32768 [ 66.651815][ T5240] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 66.665455][ T4556] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 66.703403][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 66.750559][ T5242] loop0: detected capacity change from 0 to 32768 [ 66.765962][ T5242] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 66.766000][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 66.767732][ T5242] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 66.770642][ T5242] BTRFS info (device loop0): setting nodatacow, compression disabled [ 66.771991][ T5242] BTRFS info (device loop0): setting datacow [ 66.782999][ T5242] BTRFS info (device loop0): doing ref verification [ 66.785447][ T5242] BTRFS info (device loop0): force clearing of disk cache [ 66.786658][ T5242] BTRFS info (device loop0): turning off barriers [ 66.789104][ T5242] BTRFS info (device loop0): enabling ssd optimizations [ 66.790284][ T5242] BTRFS info (device loop0): using spread ssd allocation scheme [ 66.791503][ T5242] BTRFS info (device loop0): using free space tree [ 66.932049][ T5248] loop3: detected capacity change from 0 to 32768 [ 66.934259][ T5248] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.173 (5248) [ 66.941999][ T5242] BTRFS info (device loop0): rebuilding free space tree [ 66.996582][ T4549] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4549) [ 67.026858][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 67.096691][ T5246] loop2: detected capacity change from 0 to 32768 [ 67.102381][ T5246] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.172 (5246) [ 67.141735][ T5253] loop1: detected capacity change from 0 to 32768 [ 67.146960][ T5253] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.174 (5253) [ 67.371077][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4556) [ 67.433989][ T5269] loop4: detected capacity change from 0 to 32768 [ 67.459569][ T5274] loop0: detected capacity change from 0 to 32768 [ 67.480769][ T5271] loop3: detected capacity change from 0 to 32768 [ 67.492225][ T4644] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop2 scanned by udevd (4644) [ 67.496018][ T5269] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 67.498235][ T5274] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 67.513097][ T4610] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 67.514995][ T5271] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 67.781812][ T5299] loop1: detected capacity change from 0 to 32768 [ 67.799437][ T5299] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 67.817038][ T4549] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 67.893212][ T5305] loop0: detected capacity change from 0 to 32768 [ 67.894878][ T5305] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 68.026579][ T5002] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 68.124626][ T5309] loop3: detected capacity change from 0 to 32768 [ 68.133306][ T5309] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 68.180282][ T5313] loop4: detected capacity change from 0 to 32768 [ 68.181964][ T5313] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 68.261705][ T5315] loop1: detected capacity change from 0 to 32768 [ 68.273094][ T5315] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 68.277315][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 68.354608][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 68.428055][ T5317] loop2: detected capacity change from 0 to 32768 [ 68.478198][ T5321] loop0: detected capacity change from 0 to 32768 [ 68.481889][ T5321] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.192 (5321) [ 68.505836][ T5319] loop3: detected capacity change from 0 to 32768 [ 68.507692][ T5319] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.191 (5319) [ 68.527296][ T5323] loop4: detected capacity change from 0 to 32768 [ 68.542441][ T5323] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.193 (5323) [ 68.573001][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 68.629692][ T5325] loop1: detected capacity change from 0 to 32768 [ 68.665248][ T5325] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.194 (5325) [ 68.888449][ T4644] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop2 scanned by udevd (4644) [ 68.926789][ T5349] loop3: detected capacity change from 0 to 32768 [ 68.933818][ T5349] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 68.939490][ T5344] loop0: detected capacity change from 0 to 32768 [ 68.956338][ T5344] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 68.998960][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 69.009755][ T4610] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 1970/01/01 00:01:09 executed programs: 193 [ 69.052524][ T4549] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 69.207012][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 69.261923][ T5358] loop4: detected capacity change from 0 to 32768 [ 69.271732][ T5358] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 69.330893][ T5362] loop3: detected capacity change from 0 to 32768 [ 69.346368][ T5362] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 69.355316][ T5360] loop1: detected capacity change from 0 to 32768 [ 69.356878][ T5360] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 69.646444][ T5366] loop0: detected capacity change from 0 to 32768 [ 69.653208][ T5366] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 69.692175][ T5369] loop4: detected capacity change from 0 to 32768 [ 69.711038][ T5373] loop1: detected capacity change from 0 to 32768 [ 69.736979][ T5371] loop2: detected capacity change from 0 to 32768 [ 69.753097][ T5373] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 69.755598][ T5369] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 69.763173][ T5371] _btrfs_printk: 55 callbacks suppressed [ 69.763186][ T5371] BTRFS info (device loop2): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 69.765590][ T5371] BTRFS info (device loop2): using sha256 (sha256-ce) checksum algorithm [ 69.766970][ T5371] BTRFS info (device loop2): setting nodatacow, compression disabled [ 69.768224][ T5371] BTRFS info (device loop2): setting datacow [ 69.769085][ T5371] BTRFS info (device loop2): doing ref verification [ 69.770061][ T5371] BTRFS info (device loop2): force clearing of disk cache [ 69.771111][ T5371] BTRFS info (device loop2): turning off barriers [ 69.772083][ T5371] BTRFS info (device loop2): enabling ssd optimizations [ 69.803163][ T5371] BTRFS info (device loop2): using spread ssd allocation scheme [ 69.804350][ T5371] BTRFS info (device loop2): using free space tree [ 69.832634][ T5375] loop3: detected capacity change from 0 to 32768 [ 69.851137][ T5375] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.209 (5375) [ 70.077111][ T5371] BTRFS info (device loop2): rebuilding free space tree [ 70.107368][ T4549] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4549) [ 70.141313][ T5002] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (5002) [ 70.150729][ T5371] BTRFS info (device loop2): scrub: started on devid 1 [ 70.152533][ T5371] BTRFS info (device loop2): left=0, need=98304, flags=2 [ 70.157446][ T5371] BTRFS info (device loop2): space_info SYSTEM has 0 free, is not full [ 70.158746][ T5371] BTRFS info (device loop2): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 70.160711][ T5371] BTRFS info (device loop2): global_block_rsv: size 1441792 reserved 1441792 [ 70.162013][ T5371] BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 [ 70.163410][ T5371] BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 [ 70.164601][ T5371] BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 [ 70.165937][ T5371] BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 [ 70.177499][ T5371] BTRFS info (device loop2): scrub: finished on devid 1 with status: 0 [ 70.201121][ T4449] BTRFS info (device loop2): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 70.209284][ T5385] loop0: detected capacity change from 0 to 32768 [ 70.222790][ T5385] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.212 (5385) [ 70.301568][ T5379] loop1: detected capacity change from 0 to 32768 [ 70.315330][ T5379] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz.1.211 (5379) [ 70.333304][ T5379] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 70.334997][ T5379] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 70.336232][ T5379] BTRFS info (device loop1): setting nodatacow, compression disabled [ 70.337535][ T5379] BTRFS info (device loop1): setting datacow [ 70.338487][ T5379] BTRFS info (device loop1): doing ref verification [ 70.339506][ T5379] BTRFS info (device loop1): force clearing of disk cache [ 70.340556][ T5379] BTRFS info (device loop1): turning off barriers [ 70.341605][ T5379] BTRFS info (device loop1): enabling ssd optimizations [ 70.342751][ T5379] BTRFS info (device loop1): using spread ssd allocation scheme [ 70.361748][ T5392] loop3: detected capacity change from 0 to 32768 [ 70.363284][ T5379] BTRFS info (device loop1): using free space tree [ 70.371804][ T5392] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.213 (5392) [ 70.374035][ T5395] loop4: detected capacity change from 0 to 32768 [ 70.376376][ T5395] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.214 (5395) [ 70.416215][ T4610] blk_print_req_error: 1 callbacks suppressed [ 70.416230][ T4610] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.425652][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.512024][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 70.539953][ T4644] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (4644) [ 70.636396][ T5424] loop0: detected capacity change from 0 to 32768 [ 70.638102][ T5424] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.219 (5424) [ 70.656481][ T5379] BTRFS info (device loop1): rebuilding free space tree [ 70.698183][ T5379] BTRFS info (device loop1): scrub: started on devid 1 [ 70.700131][ T5379] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 70.701185][ T5379] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 70.702491][ T5379] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 70.704610][ T5379] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 70.705832][ T5379] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 70.706902][ T5379] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 70.708035][ T5379] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 70.709236][ T5379] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 70.709714][ T5421] loop4: detected capacity change from 0 to 32768 [ 70.718300][ T5421] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.217 (5421) [ 70.753533][ T5379] BTRFS info (device loop1): scrub: finished on devid 1 with status: 0 [ 70.779838][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 70.790312][ T4442] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 70.877602][ T5422] loop3: detected capacity change from 0 to 32768 [ 70.885355][ T5422] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.218 (5422) [ 70.896317][ T5422] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 70.897898][ T5422] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 70.899076][ T5422] BTRFS info (device loop3): setting nodatacow, compression disabled [ 70.900398][ T5422] BTRFS info (device loop3): setting datacow [ 70.901362][ T5422] BTRFS info (device loop3): doing ref verification [ 70.902421][ T5422] BTRFS info (device loop3): force clearing of disk cache [ 70.918060][ T5422] BTRFS info (device loop3): turning off barriers [ 70.919065][ T5422] BTRFS info (device loop3): enabling ssd optimizations [ 70.920213][ T5422] BTRFS info (device loop3): using spread ssd allocation scheme [ 70.921391][ T5422] BTRFS info (device loop3): using free space tree [ 70.948065][ T5432] loop2: detected capacity change from 0 to 32768 [ 70.949799][ T5432] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.220 (5432) [ 71.062803][ T5437] loop0: detected capacity change from 0 to 32768 [ 71.064718][ T5437] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.222 (5437) [ 71.092341][ T5002] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 11 scanned by udevd (5002) [ 71.107116][ T5422] BTRFS info (device loop3): rebuilding free space tree [ 71.132562][ T5440] loop4: detected capacity change from 0 to 32768 [ 71.165958][ T4549] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 71.174493][ T5422] BTRFS info (device loop3): scrub: started on devid 1 [ 71.176352][ T5422] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 71.177458][ T5422] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 71.178901][ T5422] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 71.181151][ T5422] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 71.182395][ T5422] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 71.183728][ T5422] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 71.184850][ T5422] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 71.186065][ T5422] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 71.212800][ T5459] loop2: detected capacity change from 0 to 32768 [ 71.213056][ T5440] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.223 (5440) [ 71.216660][ T5422] BTRFS info (device loop3): scrub: finished on devid 1 with status: 0 [ 71.243039][ T5459] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.224 (5459) [ 71.245472][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 71.474112][ T5461] loop1: detected capacity change from 0 to 32768 [ 71.483489][ T5461] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz.1.225 (5461) [ 71.496093][ T5461] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 71.497676][ T5461] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 71.498874][ T5461] BTRFS info (device loop1): setting nodatacow, compression disabled [ 71.500159][ T5461] BTRFS info (device loop1): setting datacow [ 71.501105][ T5461] BTRFS info (device loop1): doing ref verification [ 71.502188][ T5461] BTRFS info (device loop1): force clearing of disk cache [ 71.516358][ T5461] BTRFS info (device loop1): turning off barriers [ 71.517468][ T5461] BTRFS info (device loop1): enabling ssd optimizations [ 71.518474][ T5461] BTRFS info (device loop1): using spread ssd allocation scheme [ 71.519652][ T5461] BTRFS info (device loop1): using free space tree [ 71.525542][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4644) [ 71.543859][ T5466] loop0: detected capacity change from 0 to 32768 [ 71.633267][ T5470] loop2: detected capacity change from 0 to 32768 [ 71.635265][ T5466] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.228 (5466) [ 71.647421][ T5470] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.229 (5470) [ 71.690051][ T4610] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 11 scanned by udevd (4610) [ 71.737158][ T5461] BTRFS info (device loop1): rebuilding free space tree [ 71.754144][ T5461] BTRFS info (device loop1): scrub: started on devid 1 [ 71.755532][ T5461] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 71.756586][ T5461] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 71.758017][ T5461] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 71.759875][ T5461] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 71.761159][ T5461] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 71.762253][ T5461] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 71.763559][ T5461] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 71.764705][ T5461] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 71.801578][ T5461] BTRFS info (device loop1): scrub: finished on devid 1 with status: 0 [ 71.840286][ T5476] loop4: detected capacity change from 0 to 32768 [ 71.846025][ T5476] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.230 (5476) [ 71.872754][ T4442] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 71.890217][ T4644] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 72.096055][ T5492] loop3: detected capacity change from 0 to 32768 [ 72.105341][ T5492] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.233 (5492) [ 72.115688][ T5492] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 72.117293][ T5492] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 72.118550][ T5492] BTRFS info (device loop3): setting nodatacow, compression disabled [ 72.125807][ T5492] BTRFS info (device loop3): setting datacow [ 72.126759][ T5492] BTRFS info (device loop3): doing ref verification [ 72.127812][ T5492] BTRFS info (device loop3): force clearing of disk cache [ 72.128939][ T5492] BTRFS info (device loop3): turning off barriers [ 72.138154][ T5002] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 11 scanned by udevd (5002) [ 72.146050][ T5492] BTRFS info (device loop3): enabling ssd optimizations [ 72.147169][ T5492] BTRFS info (device loop3): using spread ssd allocation scheme [ 72.148319][ T5492] BTRFS info (device loop3): using free space tree [ 72.221014][ T4556] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4556) [ 72.229782][ T4549] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4549) [ 72.254804][ T5502] loop4: detected capacity change from 0 to 32768 [ 72.272299][ T5502] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.236 (5502) [ 72.296903][ T5504] loop2: detected capacity change from 0 to 32768 [ 72.298738][ T5504] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.237 (5504) [ 72.339390][ T5492] BTRFS info (device loop3): rebuilding free space tree [ 72.349245][ T5500] loop1: detected capacity change from 0 to 32768 [ 72.351035][ T5500] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.234 (5500) [ 72.360468][ T5492] BTRFS info (device loop3): scrub: started on devid 1 [ 72.507935][ T5513] loop0: detected capacity change from 0 to 32768 [ 72.528772][ T5513] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.238 (5513) [ 72.598357][ T5529] loop2: detected capacity change from 0 to 32768 [ 72.643164][ T5529] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.241 (5529) [ 72.678352][ T5531] loop3: detected capacity change from 0 to 32768 [ 72.680053][ T5531] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.240 (5531) [ 72.697062][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 72.806004][ T5535] loop1: detected capacity change from 0 to 32768 [ 72.811449][ T5535] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.242 (5535) [ 72.843722][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4644) [ 72.955331][ T5542] loop4: detected capacity change from 0 to 32768 [ 72.957039][ T5542] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by syz.4.243 (5542) [ 73.004490][ T5554] loop2: detected capacity change from 0 to 32768 [ 73.014185][ T5554] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.245 (5554) [ 73.064718][ T5556] loop3: detected capacity change from 0 to 32768 [ 73.066534][ T5556] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.246 (5556) [ 73.079015][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4549) [ 73.118562][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4556) [ 73.247553][ T5576] loop0: detected capacity change from 0 to 32768 [ 73.250053][ T5560] loop1: detected capacity change from 0 to 32768 [ 73.253016][ T5576] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.249 (5576) [ 73.257427][ T5560] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.247 (5560) [ 73.363152][ T4549] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 73.400729][ T5580] loop3: detected capacity change from 0 to 32768 [ 73.402514][ T5580] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.250 (5580) [ 73.444547][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 11 scanned by udevd (4644) [ 73.485140][ T5573] loop2: detected capacity change from 0 to 32768 [ 73.487695][ T5573] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.248 (5573) [ 73.562211][ T4556] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop0 scanned by udevd (4556) [ 73.633785][ T5590] loop4: detected capacity change from 0 to 32768 [ 73.649016][ T5590] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 73.781479][ T5606] loop2: detected capacity change from 0 to 32768 [ 73.795920][ T5606] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 73.844271][ T4610] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 73.844286][ T5610] loop1: detected capacity change from 0 to 32768 [ 73.869948][ T5610] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 73.942553][ T5613] loop3: detected capacity change from 0 to 32768 [ 73.947418][ T5613] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 74.003943][ T4644] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 74.024053][ T5615] loop4: detected capacity change from 0 to 32768 [ 74.035332][ T5615] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 1970/01/01 00:01:14 executed programs: 253 [ 74.095707][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 74.114996][ T5617] loop0: detected capacity change from 0 to 32768 [ 74.219862][ T5619] loop2: detected capacity change from 0 to 32768 [ 74.259451][ T5619] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.259 (5619) [ 74.286308][ T5625] loop4: detected capacity change from 0 to 32768 [ 74.288028][ T5625] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.261 (5625) [ 74.373486][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 74.430109][ T5628] loop3: detected capacity change from 0 to 32768 [ 74.432242][ T5628] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.262 (5628) [ 74.455338][ T5621] loop1: detected capacity change from 0 to 32768 [ 74.458859][ T5621] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.260 (5621) [ 74.541050][ T4556] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop0 scanned by udevd (4556) [ 74.705936][ T5648] loop4: detected capacity change from 0 to 32768 [ 74.707773][ T5648] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 74.827767][ T5002] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 74.848624][ T5652] loop1: detected capacity change from 0 to 32768 [ 74.849380][ T5654] loop3: detected capacity change from 0 to 32768 [ 74.853158][ T5652] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 74.873045][ T5654] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 74.998450][ T5657] loop4: detected capacity change from 0 to 32768 [ 75.013276][ T5657] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 75.056208][ T5659] loop2: detected capacity change from 0 to 32768 [ 75.063227][ T5659] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 75.099708][ T5661] loop1: detected capacity change from 0 to 32768 [ 75.115426][ T5661] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 75.226411][ T5665] loop3: detected capacity change from 0 to 32768 [ 75.233624][ T5665] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 75.438390][ T5667] loop2: detected capacity change from 0 to 32768 [ 75.459800][ T5671] loop0: detected capacity change from 0 to 32768 [ 75.461099][ T5667] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 75.480136][ T5671] _btrfs_printk: 98 callbacks suppressed [ 75.480144][ T5671] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 75.482845][ T5671] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 75.485656][ T5669] loop4: detected capacity change from 0 to 32768 [ 75.493067][ T5669] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.274 (5669) [ 75.502376][ T5673] loop1: detected capacity change from 0 to 32768 [ 75.503002][ T5671] BTRFS info (device loop0): setting nodatacow, compression disabled [ 75.504739][ T5671] BTRFS info (device loop0): setting datacow [ 75.505627][ T5671] BTRFS info (device loop0): doing ref verification [ 75.506598][ T5671] BTRFS info (device loop0): force clearing of disk cache [ 75.507618][ T5671] BTRFS info (device loop0): turning off barriers [ 75.508570][ T5671] BTRFS info (device loop0): enabling ssd optimizations [ 75.509548][ T5671] BTRFS info (device loop0): using spread ssd allocation scheme [ 75.510744][ T5671] BTRFS info (device loop0): using free space tree [ 75.527052][ T5673] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.277 (5673) [ 75.555925][ T5675] loop3: detected capacity change from 0 to 32768 [ 75.571711][ T5675] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.278 (5675) [ 75.585542][ T4644] blk_print_req_error: 3 callbacks suppressed [ 75.585560][ T4644] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 75.721388][ T5671] BTRFS info (device loop0): rebuilding free space tree [ 75.756579][ T5671] BTRFS info (device loop0): scrub: started on devid 1 [ 75.758728][ T5671] BTRFS info (device loop0): left=0, need=98304, flags=2 [ 75.759907][ T5671] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 75.761237][ T5671] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 75.763179][ T5671] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 [ 75.764493][ T5671] BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 [ 75.765625][ T5671] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 75.766697][ T5671] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 75.767825][ T5671] BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 [ 75.803114][ T5671] BTRFS info (device loop0): scrub: finished on devid 1 with status: 0 [ 75.822840][ T5684] loop1: detected capacity change from 0 to 32768 [ 75.829004][ T5684] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.280 (5684) [ 75.865214][ T4440] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 75.899422][ T5692] loop4: detected capacity change from 0 to 32768 [ 75.901662][ T5692] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by syz.4.282 (5692) [ 75.920335][ T5692] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 75.922011][ T5692] BTRFS info (device loop4): using sha256 (sha256-ce) checksum algorithm [ 75.925722][ T5692] BTRFS info (device loop4): setting nodatacow, compression disabled [ 75.927106][ T5692] BTRFS info (device loop4): setting datacow [ 75.928107][ T5692] BTRFS info (device loop4): doing ref verification [ 75.929089][ T5692] BTRFS info (device loop4): force clearing of disk cache [ 75.930139][ T5692] BTRFS info (device loop4): turning off barriers [ 75.931043][ T5692] BTRFS info (device loop4): enabling ssd optimizations [ 75.932043][ T5692] BTRFS info (device loop4): using spread ssd allocation scheme [ 75.959447][ T5692] BTRFS info (device loop4): using free space tree [ 76.012392][ T5002] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (5002) [ 76.079524][ T5709] loop1: detected capacity change from 0 to 32768 [ 76.081625][ T4610] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4610) [ 76.091410][ T5709] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.286 (5709) [ 76.164195][ T5692] BTRFS info (device loop4): rebuilding free space tree [ 76.200237][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4556) [ 76.204404][ T5692] BTRFS info (device loop4): scrub: started on devid 1 [ 76.205822][ T5692] BTRFS info (device loop4): left=0, need=98304, flags=2 [ 76.206841][ T5692] BTRFS info (device loop4): space_info SYSTEM has 0 free, is not full [ 76.208073][ T5692] BTRFS info (device loop4): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 76.210141][ T5692] BTRFS info (device loop4): global_block_rsv: size 1441792 reserved 1441792 [ 76.211490][ T5692] BTRFS info (device loop4): trans_block_rsv: size 0 reserved 0 [ 76.212686][ T5692] BTRFS info (device loop4): chunk_block_rsv: size 0 reserved 0 [ 76.213944][ T5692] BTRFS info (device loop4): delayed_block_rsv: size 0 reserved 0 [ 76.215129][ T5692] BTRFS info (device loop4): delayed_refs_rsv: size 0 reserved 0 [ 76.255834][ T5692] BTRFS info (device loop4): scrub: finished on devid 1 with status: 0 [ 76.279806][ T5707] loop2: detected capacity change from 0 to 32768 [ 76.289265][ T5707] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.285 (5707) [ 76.303651][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 76.478482][ T4644] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop4 scanned by udevd (4644) [ 76.479083][ T5732] loop0: detected capacity change from 0 to 32768 [ 76.496420][ T5727] loop3: detected capacity change from 0 to 32768 [ 76.500996][ T5732] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 76.511686][ T5727] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 76.592941][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 76.659157][ T5737] loop2: detected capacity change from 0 to 32768 [ 76.663115][ T5737] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 76.675986][ T4549] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 76.856201][ T5742] loop1: detected capacity change from 0 to 32768 [ 76.863581][ T5742] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 76.924388][ T5744] loop0: detected capacity change from 0 to 32768 [ 76.929031][ T5744] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 77.025108][ T4610] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 77.063537][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 77.115232][ T5002] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 77.167143][ T5750] loop3: detected capacity change from 0 to 32768 [ 77.183046][ T5750] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 77.250216][ T5756] loop4: detected capacity change from 0 to 32768 [ 77.256365][ T5752] loop1: detected capacity change from 0 to 32768 [ 77.258294][ T5756] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 77.260093][ T5756] BTRFS info (device loop4): using sha256 (sha256-ce) checksum algorithm [ 77.261444][ T5756] BTRFS info (device loop4): setting nodatacow, compression disabled [ 77.262687][ T5756] BTRFS info (device loop4): setting datacow [ 77.266235][ T5752] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.298 (5752) [ 77.275897][ T5756] BTRFS info (device loop4): doing ref verification [ 77.276988][ T5756] BTRFS info (device loop4): force clearing of disk cache [ 77.282671][ T5756] BTRFS info (device loop4): turning off barriers [ 77.286427][ T5756] BTRFS info (device loop4): enabling ssd optimizations [ 77.287574][ T5756] BTRFS info (device loop4): using spread ssd allocation scheme [ 77.298662][ T5756] BTRFS info (device loop4): using free space tree [ 77.374013][ T5755] loop2: detected capacity change from 0 to 32768 [ 77.375924][ T5755] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.299 (5755) [ 77.457652][ T5758] loop0: detected capacity change from 0 to 32768 [ 77.465717][ T5758] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.301 (5758) [ 77.506940][ T5767] loop3: detected capacity change from 0 to 32768 [ 77.508609][ T5767] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.303 (5767) [ 77.536798][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4549) [ 77.554068][ T5756] BTRFS info (device loop4): rebuilding free space tree [ 77.567678][ T5756] BTRFS info (device loop4): scrub: started on devid 1 [ 77.569666][ T5756] BTRFS info (device loop4): left=0, need=98304, flags=2 [ 77.570669][ T5756] BTRFS info (device loop4): space_info SYSTEM has 0 free, is not full [ 77.571925][ T5756] BTRFS info (device loop4): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 77.574263][ T5756] BTRFS info (device loop4): global_block_rsv: size 1441792 reserved 1441792 [ 77.575501][ T5756] BTRFS info (device loop4): trans_block_rsv: size 0 reserved 0 [ 77.576646][ T5756] BTRFS info (device loop4): chunk_block_rsv: size 0 reserved 0 [ 77.577745][ T5756] BTRFS info (device loop4): delayed_block_rsv: size 0 reserved 0 [ 77.578906][ T5756] BTRFS info (device loop4): delayed_refs_rsv: size 0 reserved 0 [ 77.596070][ T5756] BTRFS info (device loop4): scrub: finished on devid 1 with status: 0 [ 77.618295][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 77.816457][ T5778] loop2: detected capacity change from 0 to 32768 [ 77.823183][ T5778] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.304 (5778) [ 77.833990][ T5778] BTRFS info (device loop2): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 77.835530][ T5778] BTRFS info (device loop2): using sha256 (sha256-ce) checksum algorithm [ 77.843625][ T5778] BTRFS info (device loop2): setting nodatacow, compression disabled [ 77.844900][ T5778] BTRFS info (device loop2): setting datacow [ 77.845901][ T5778] BTRFS info (device loop2): doing ref verification [ 77.847126][ T5778] BTRFS info (device loop2): force clearing of disk cache [ 77.848260][ T5778] BTRFS info (device loop2): turning off barriers [ 77.849368][ T5778] BTRFS info (device loop2): enabling ssd optimizations [ 77.850472][ T5778] BTRFS info (device loop2): using spread ssd allocation scheme [ 77.851663][ T5778] BTRFS info (device loop2): using free space tree [ 77.856909][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 77.886635][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 11 scanned by udevd (4644) [ 77.939998][ T5785] loop1: detected capacity change from 0 to 32768 [ 77.941761][ T5785] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.306 (5785) [ 77.975829][ T5789] loop3: detected capacity change from 0 to 32768 [ 77.977422][ T5787] loop4: detected capacity change from 0 to 32768 [ 77.978836][ T5789] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.308 (5789) [ 78.001526][ T5787] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.307 (5787) [ 78.025290][ T4610] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 78.076535][ T5778] BTRFS info (device loop2): rebuilding free space tree [ 78.081228][ T5778] BTRFS info (device loop2): scrub: started on devid 1 [ 78.082539][ T5778] BTRFS info (device loop2): left=0, need=98304, flags=2 [ 78.086022][ T5778] BTRFS info (device loop2): space_info SYSTEM has 0 free, is not full [ 78.087238][ T5778] BTRFS info (device loop2): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 78.089513][ T5778] BTRFS info (device loop2): global_block_rsv: size 1441792 reserved 1441792 [ 78.090853][ T5778] BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 [ 78.092055][ T5778] BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 [ 78.093428][ T5778] BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 [ 78.094559][ T5778] BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 [ 78.108095][ T4644] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 78.149496][ T5778] BTRFS info (device loop2: state M): scrub: not finished on devid 1 with status: -125 [ 78.167746][ T5798] loop0: detected capacity change from 0 to 32768 [ 78.170013][ T5798] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.309 (5798) [ 78.221403][ T4449] BTRFS info (device loop2): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 78.464882][ T5813] loop3: detected capacity change from 0 to 32768 [ 78.473174][ T5813] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.311 (5813) [ 78.482962][ T5813] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 78.484683][ T5813] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 78.485975][ T5813] BTRFS info (device loop3): setting nodatacow, compression disabled [ 78.492949][ T5813] BTRFS info (device loop3): setting datacow [ 78.493852][ T5813] BTRFS info (device loop3): doing ref verification [ 78.495035][ T5813] BTRFS info (device loop3): force clearing of disk cache [ 78.496023][ T5813] BTRFS info (device loop3): turning off barriers [ 78.497014][ T5813] BTRFS info (device loop3): enabling ssd optimizations [ 78.508380][ T5813] BTRFS info (device loop3): using spread ssd allocation scheme [ 78.509499][ T5813] BTRFS info (device loop3): using free space tree [ 78.541957][ T5819] loop4: detected capacity change from 0 to 32768 [ 78.546104][ T5819] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.314 (5819) [ 78.609374][ T5002] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (5002) [ 78.698147][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4549) [ 78.703057][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 78.739812][ T5813] BTRFS info (device loop3): rebuilding free space tree [ 78.783781][ T5823] loop0: detected capacity change from 0 to 32768 [ 78.785663][ T5823] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.316 (5823) [ 78.812179][ T5840] loop1: detected capacity change from 0 to 32768 [ 78.812330][ T5813] BTRFS info (device loop3): scrub: started on devid 1 [ 78.817545][ T5840] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.319 (5840) [ 78.868654][ T4549] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 78.911019][ T5834] loop2: detected capacity change from 0 to 32768 [ 78.926251][ T5834] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.318 (5834) [ 78.984377][ T4610] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop3 scanned by udevd (4610) [ 79.034435][ T5002] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 79.050164][ T4644] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 1970/01/01 00:01:19 executed programs: 317 [ 79.200771][ T5849] loop4: detected capacity change from 0 to 32768 [ 79.222270][ T5849] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 79.233563][ T5850] loop0: detected capacity change from 0 to 32768 [ 79.233648][ T5854] loop1: detected capacity change from 0 to 32768 [ 79.236543][ T5850] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 79.238302][ T5854] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 79.361371][ T5857] loop2: detected capacity change from 0 to 32768 [ 79.377178][ T5857] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 79.551276][ T5861] loop0: detected capacity change from 0 to 32768 [ 79.573127][ T5861] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 79.578274][ T5863] loop3: detected capacity change from 0 to 32768 [ 79.602154][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4549) [ 79.621068][ T5865] loop4: detected capacity change from 0 to 32768 [ 79.637784][ T5865] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.328 (5865) [ 79.656721][ T4644] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 79.694060][ T5867] loop2: detected capacity change from 0 to 32768 [ 79.716075][ T5867] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.329 (5867) [ 79.864686][ T5888] loop0: detected capacity change from 0 to 32768 [ 79.869986][ T5888] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.333 (5888) [ 80.049868][ T5880] loop1: detected capacity change from 0 to 32768 [ 80.051499][ T5880] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz.1.330 (5880) [ 80.061398][ T4610] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 11 scanned by udevd (4610) [ 80.082648][ T5878] loop4: detected capacity change from 0 to 32768 [ 80.102524][ T5894] loop0: detected capacity change from 0 to 32768 [ 80.106515][ T5878] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.331 (5878) [ 80.109242][ T5894] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.334 (5894) [ 80.171288][ T5002] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (5002) [ 80.237433][ T5896] loop3: detected capacity change from 0 to 32768 [ 80.285220][ T5896] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.335 (5896) [ 80.288414][ T5912] loop2: detected capacity change from 0 to 32768 [ 80.290486][ T5912] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.337 (5912) [ 80.589540][ T5919] loop0: detected capacity change from 0 to 32768 [ 80.606477][ T5919] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.338 (5919) [ 80.611411][ T5919] _btrfs_printk: 54 callbacks suppressed [ 80.611419][ T5919] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 80.621594][ T5919] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 80.623346][ T5919] BTRFS info (device loop0): setting nodatacow, compression disabled [ 80.624636][ T5919] BTRFS info (device loop0): setting datacow [ 80.625618][ T5919] BTRFS info (device loop0): doing ref verification [ 80.626639][ T5919] BTRFS info (device loop0): force clearing of disk cache [ 80.632010][ T5919] BTRFS info (device loop0): turning off barriers [ 80.637999][ T5919] BTRFS info (device loop0): enabling ssd optimizations [ 80.639058][ T5919] BTRFS info (device loop0): using spread ssd allocation scheme [ 80.640312][ T5919] BTRFS info (device loop0): using free space tree [ 80.660530][ T5921] loop3: detected capacity change from 0 to 32768 [ 80.668750][ T5921] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.340 (5921) [ 80.676811][ T4556] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4556) [ 80.708497][ T5925] loop2: detected capacity change from 0 to 32768 [ 80.710428][ T5925] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.341 (5925) [ 80.722645][ T4610] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 80.769983][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 11 scanned by udevd (4549) [ 80.772708][ T5927] loop4: detected capacity change from 0 to 32768 [ 80.777254][ T5927] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.342 (5927) [ 80.883467][ T5919] BTRFS info (device loop0): rebuilding free space tree [ 80.947712][ T5933] loop1: detected capacity change from 0 to 32768 [ 80.950558][ T5933] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.343 (5933) [ 80.954463][ T5919] BTRFS info (device loop0): scrub: started on devid 1 [ 80.960125][ T5919] BTRFS info (device loop0): left=0, need=98304, flags=2 [ 80.961355][ T5919] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 80.962620][ T5919] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 80.964833][ T5919] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 [ 80.966131][ T5919] BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 [ 80.967214][ T5919] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 80.968366][ T5919] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 80.969583][ T5919] BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 [ 80.998608][ T5919] BTRFS info (device loop0): scrub: finished on devid 1 with status: 0 [ 81.063232][ T4440] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 81.154935][ T5939] loop2: detected capacity change from 0 to 32768 [ 81.161026][ T5939] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.344 (5939) [ 81.163460][ T5954] loop1: detected capacity change from 0 to 32768 [ 81.171329][ T5939] BTRFS info (device loop2): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 81.171558][ T5954] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.347 (5954) [ 81.172816][ T5939] BTRFS info (device loop2): using sha256 (sha256-ce) checksum algorithm [ 81.175989][ T5939] BTRFS info (device loop2): setting nodatacow, compression disabled [ 81.177157][ T5939] BTRFS info (device loop2): setting datacow [ 81.178105][ T5939] BTRFS info (device loop2): doing ref verification [ 81.179062][ T5939] BTRFS info (device loop2): force clearing of disk cache [ 81.180096][ T5939] BTRFS info (device loop2): turning off barriers [ 81.193028][ T5939] BTRFS info (device loop2): enabling ssd optimizations [ 81.194100][ T5939] BTRFS info (device loop2): using spread ssd allocation scheme [ 81.198871][ T5939] BTRFS info (device loop2): using free space tree [ 81.210641][ T5944] loop3: detected capacity change from 0 to 32768 [ 81.233029][ T4644] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4644) [ 81.235874][ T5944] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.345 (5944) [ 81.279608][ T5952] loop4: detected capacity change from 0 to 32768 [ 81.283167][ T5952] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.346 (5952) [ 81.399447][ T5939] BTRFS info (device loop2): rebuilding free space tree [ 81.446423][ T5939] BTRFS info (device loop2): scrub: started on devid 1 [ 81.448313][ T5939] BTRFS info (device loop2): left=0, need=98304, flags=2 [ 81.449339][ T5939] BTRFS info (device loop2): space_info SYSTEM has 0 free, is not full [ 81.450536][ T5939] BTRFS info (device loop2): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 81.452695][ T5939] BTRFS info (device loop2): global_block_rsv: size 1441792 reserved 1441792 [ 81.454206][ T5939] BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 [ 81.455427][ T5939] BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 [ 81.456688][ T5939] BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 [ 81.457887][ T5939] BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 [ 81.466534][ T5957] loop0: detected capacity change from 0 to 32768 [ 81.504220][ T5957] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.348 (5957) [ 81.510558][ T5939] BTRFS info (device loop2: state M): scrub: not finished on devid 1 with status: -125 [ 81.563478][ T4449] BTRFS info (device loop2): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 81.581932][ T5969] loop4: detected capacity change from 0 to 32768 [ 81.588023][ T5969] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.350 (5969) [ 81.638276][ T5002] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by udevd (5002) [ 81.692323][ T5975] loop1: detected capacity change from 0 to 32768 [ 81.714343][ T5975] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 81.715945][ T5975] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 81.717081][ T5975] BTRFS info (device loop1): setting nodatacow, compression disabled [ 81.718386][ T5975] BTRFS info (device loop1): setting datacow [ 81.719317][ T5975] BTRFS info (device loop1): doing ref verification [ 81.720243][ T5975] BTRFS info (device loop1): force clearing of disk cache [ 81.721316][ T5975] BTRFS info (device loop1): turning off barriers [ 81.722223][ T5975] BTRFS info (device loop1): enabling ssd optimizations [ 81.743394][ T5975] BTRFS info (device loop1): using spread ssd allocation scheme [ 81.744451][ T5975] BTRFS info (device loop1): using free space tree [ 81.834464][ T5989] loop0: detected capacity change from 0 to 32768 [ 81.836270][ T5989] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.354 (5989) [ 81.914229][ T5975] BTRFS info (device loop1): rebuilding free space tree [ 81.934208][ T5975] BTRFS info (device loop1): scrub: started on devid 1 [ 81.940579][ T5988] loop4: detected capacity change from 0 to 32768 [ 81.947670][ T5975] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 81.947682][ T5988] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.355 (5988) [ 81.948829][ T5975] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 81.951590][ T5975] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 81.953740][ T5975] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 81.955017][ T5975] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 81.956292][ T5975] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 81.957475][ T5975] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 81.958843][ T5975] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 81.967108][ T5975] BTRFS info (device loop1): scrub: finished on devid 1 with status: 0 [ 81.993223][ T4442] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 82.032708][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 82.190447][ T4556] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop1 scanned by udevd (4556) [ 82.216759][ T6010] loop3: detected capacity change from 0 to 32768 [ 82.229808][ T6010] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 82.278974][ T4644] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 82.468415][ T6018] loop4: detected capacity change from 0 to 32768 [ 82.490088][ T6018] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 82.595214][ T6023] loop0: detected capacity change from 0 to 32768 [ 82.600311][ T6023] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 82.608055][ T6027] loop2: detected capacity change from 0 to 32768 [ 82.612681][ T6027] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 82.662578][ T5002] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 82.860029][ T6031] loop3: detected capacity change from 0 to 32768 [ 82.865973][ T6031] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 82.943773][ T4549] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 82.978513][ T6033] loop0: detected capacity change from 0 to 32768 [ 83.015765][ T6037] loop2: detected capacity change from 0 to 32768 [ 83.029209][ T6033] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 83.031381][ T6037] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 83.124487][ T6039] loop4: detected capacity change from 0 to 32768 [ 83.138579][ T6039] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 83.228756][ T6041] loop3: detected capacity change from 0 to 32768 [ 83.237200][ T6041] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 83.247192][ T4644] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 83.294248][ T6043] loop0: detected capacity change from 0 to 32768 [ 83.297032][ T6043] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 83.341289][ T6045] loop1: detected capacity change from 0 to 32768 [ 83.348570][ T6045] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 83.353866][ T6045] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 83.355048][ T6045] BTRFS info (device loop1): setting nodatacow, compression disabled [ 83.356188][ T6045] BTRFS info (device loop1): setting datacow [ 83.357116][ T6045] BTRFS info (device loop1): doing ref verification [ 83.368680][ T6045] BTRFS info (device loop1): force clearing of disk cache [ 83.383974][ T6045] BTRFS info (device loop1): turning off barriers [ 83.384991][ T6045] BTRFS info (device loop1): enabling ssd optimizations [ 83.386048][ T6045] BTRFS info (device loop1): using spread ssd allocation scheme [ 83.387137][ T6045] BTRFS info (device loop1): using free space tree [ 83.412305][ T6047] loop2: detected capacity change from 0 to 32768 [ 83.421721][ T6047] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.374 (6047) [ 83.517655][ T6049] loop4: detected capacity change from 0 to 32768 [ 83.526265][ T6049] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.375 (6049) [ 83.605721][ T6062] loop0: detected capacity change from 0 to 32768 [ 83.607441][ T6062] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.378 (6062) [ 83.635177][ T6051] loop3: detected capacity change from 0 to 32768 [ 83.637002][ T6051] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.376 (6051) [ 83.640906][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 83.650324][ T6045] BTRFS info (device loop1): rebuilding free space tree [ 83.684689][ T6045] BTRFS info (device loop1): scrub: started on devid 1 [ 83.686511][ T6045] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 83.687723][ T6045] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 83.688990][ T6045] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 83.690997][ T6045] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 83.692245][ T6045] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 83.695162][ T6045] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 83.696401][ T6045] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 83.697620][ T6045] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 83.757153][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 83.759149][ T6045] BTRFS info (device loop1: state M): scrub: not finished on devid 1 with status: -125 [ 83.794490][ T4442] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 84.024056][ T4556] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop1 scanned by udevd (4556) [ 84.046569][ T4610] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 84.059625][ T6076] loop4: detected capacity change from 0 to 32768 [ 84.073720][ T6078] loop2: detected capacity change from 0 to 32768 [ 84.075234][ T6076] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 84.087137][ T4644] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 84.089073][ T6078] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 84.093920][ T6081] loop3: detected capacity change from 0 to 32768 [ 84.096882][ T6081] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 1970/01/01 00:01:24 executed programs: 378 [ 84.187943][ T6085] loop0: detected capacity change from 0 to 32768 [ 84.191947][ T6085] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 84.226539][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 84.259364][ T4610] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 84.377303][ T6090] loop3: detected capacity change from 0 to 32768 [ 84.382810][ T6090] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 84.566250][ T6093] loop2: detected capacity change from 0 to 32768 [ 84.569285][ T6094] loop4: detected capacity change from 0 to 32768 [ 84.581856][ T6093] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 84.590763][ T6094] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 84.645571][ T6100] loop1: detected capacity change from 0 to 32768 [ 84.651672][ T6100] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 84.652736][ T4610] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 84.655138][ T6100] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 84.656443][ T6100] BTRFS info (device loop1): setting nodatacow, compression disabled [ 84.657877][ T6100] BTRFS info (device loop1): setting datacow [ 84.658760][ T6100] BTRFS info (device loop1): doing ref verification [ 84.675759][ T6097] loop0: detected capacity change from 0 to 32768 [ 84.677194][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 84.677279][ T6100] BTRFS info (device loop1): force clearing of disk cache [ 84.679720][ T6100] BTRFS info (device loop1): turning off barriers [ 84.683330][ T6097] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.389 (6097) [ 84.686106][ T6098] loop3: detected capacity change from 0 to 32768 [ 84.687628][ T6100] BTRFS info (device loop1): enabling ssd optimizations [ 84.688661][ T6100] BTRFS info (device loop1): using spread ssd allocation scheme [ 84.689804][ T6100] BTRFS info (device loop1): using free space tree [ 84.701168][ T6098] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.390 (6098) [ 84.755140][ T4644] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 84.833464][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 84.866673][ T6100] BTRFS info (device loop1): rebuilding free space tree [ 84.873027][ T6104] loop2: detected capacity change from 0 to 32768 [ 84.874816][ T6104] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.392 (6104) [ 84.951853][ T6109] loop4: detected capacity change from 0 to 32768 [ 84.976467][ T6100] BTRFS info (device loop1): scrub: started on devid 1 [ 84.990840][ T6109] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.393 (6109) [ 85.139405][ T6121] loop0: detected capacity change from 0 to 32768 [ 85.161783][ T6121] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.394 (6121) [ 85.205363][ T6127] loop3: detected capacity change from 0 to 32768 [ 85.212509][ T6127] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.396 (6127) [ 85.250773][ T4549] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4549) [ 85.466097][ T6155] loop2: detected capacity change from 0 to 32768 [ 85.467808][ T6155] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.401 (6155) [ 85.482002][ T6133] loop4: detected capacity change from 0 to 32768 [ 85.482707][ T4556] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 11 scanned by udevd (4556) [ 85.512625][ T6133] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.399 (6133) [ 85.587237][ T6149] loop3: detected capacity change from 0 to 32768 [ 85.588866][ T6149] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.400 (6149) [ 85.621600][ T6155] _btrfs_printk: 42 callbacks suppressed [ 85.621610][ T6155] BTRFS info (device loop2): rebuilding free space tree [ 85.645891][ T6155] BTRFS info (device loop2): scrub: started on devid 1 [ 85.647902][ T6155] BTRFS info (device loop2): left=0, need=98304, flags=2 [ 85.649063][ T6155] BTRFS info (device loop2): space_info SYSTEM has 0 free, is not full [ 85.650523][ T6155] BTRFS info (device loop2): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 85.652806][ T6155] BTRFS info (device loop2): global_block_rsv: size 1441792 reserved 1441792 [ 85.654350][ T6155] BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 [ 85.655686][ T6155] BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 [ 85.656933][ T6155] BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 [ 85.658158][ T6155] BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 [ 85.684366][ T6155] BTRFS info (device loop2): scrub: finished on devid 1 with status: 0 [ 85.727865][ T4449] BTRFS info (device loop2): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 85.899331][ T6180] loop0: detected capacity change from 0 to 32768 [ 85.911594][ T6180] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.405 (6180) [ 85.922325][ T6174] loop1: detected capacity change from 0 to 32768 [ 85.925765][ T6180] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 85.933390][ T6180] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 85.934787][ T6180] BTRFS info (device loop0): setting nodatacow, compression disabled [ 85.936068][ T6180] BTRFS info (device loop0): setting datacow [ 85.937007][ T6180] BTRFS info (device loop0): doing ref verification [ 85.937991][ T6180] BTRFS info (device loop0): force clearing of disk cache [ 85.938983][ T6180] BTRFS info (device loop0): turning off barriers [ 85.939988][ T6180] BTRFS info (device loop0): enabling ssd optimizations [ 85.940981][ T6180] BTRFS info (device loop0): using spread ssd allocation scheme [ 85.942143][ T6180] BTRFS info (device loop0): using free space tree [ 85.953535][ T6174] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.403 (6174) [ 86.011906][ T6182] loop4: detected capacity change from 0 to 32768 [ 86.013723][ T6182] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.406 (6182) [ 86.054148][ T4556] blk_print_req_error: 2 callbacks suppressed [ 86.054166][ T4556] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 86.119036][ T4610] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (4610) [ 86.175868][ T4549] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (4549) [ 86.182277][ T6180] BTRFS info (device loop0): rebuilding free space tree [ 86.245598][ T6180] BTRFS info (device loop0): scrub: started on devid 1 [ 86.247179][ T6180] BTRFS info (device loop0): left=0, need=98304, flags=2 [ 86.248301][ T6180] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 86.249705][ T6180] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 86.251793][ T6180] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 [ 86.253797][ T6180] BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 [ 86.254987][ T6180] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 86.256097][ T6180] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 86.257226][ T6180] BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 [ 86.317110][ T6180] BTRFS info (device loop0: state M): scrub: not finished on devid 1 with status: -125 [ 86.330471][ T6211] loop2: detected capacity change from 0 to 32768 [ 86.340353][ T6211] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.412 (6211) [ 86.357070][ T4440] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 86.449183][ T6196] loop3: detected capacity change from 0 to 32768 [ 86.465470][ T6196] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.409 (6196) [ 86.470511][ T6203] loop1: detected capacity change from 0 to 32768 [ 86.474469][ T6196] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 86.476205][ T6196] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 86.477550][ T6196] BTRFS info (device loop3): setting nodatacow, compression disabled [ 86.478790][ T6196] BTRFS info (device loop3): setting datacow [ 86.479768][ T6196] BTRFS info (device loop3): doing ref verification [ 86.480802][ T6196] BTRFS info (device loop3): force clearing of disk cache [ 86.493681][ T6203] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.410 (6203) [ 86.501441][ T6196] BTRFS info (device loop3): turning off barriers [ 86.502430][ T6196] BTRFS info (device loop3): enabling ssd optimizations [ 86.503616][ T6196] BTRFS info (device loop3): using spread ssd allocation scheme [ 86.504866][ T6196] BTRFS info (device loop3): using free space tree [ 86.604459][ T6217] loop2: detected capacity change from 0 to 32768 [ 86.609605][ T6217] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.414 (6217) [ 86.691591][ T5002] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (5002) [ 86.786692][ T6196] BTRFS info (device loop3): rebuilding free space tree [ 86.794591][ T4556] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4556) [ 86.799532][ T6235] loop4: detected capacity change from 0 to 32768 [ 86.801151][ T6235] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.417 (6235) [ 86.807680][ T6196] BTRFS info (device loop3): scrub: started on devid 1 [ 86.809520][ T6196] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 86.810591][ T6196] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 86.811950][ T6196] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 86.814299][ T6196] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 86.815587][ T6196] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 86.816753][ T6196] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 86.817933][ T6196] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 86.819187][ T6196] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 86.837981][ T6196] BTRFS info (device loop3): scrub: finished on devid 1 with status: 0 [ 86.868545][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 86.943228][ T4610] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop3 scanned by udevd (4610) [ 87.035581][ T4549] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 87.170769][ T6248] loop4: detected capacity change from 0 to 32768 [ 87.176536][ T6242] loop0: detected capacity change from 0 to 32768 [ 87.182682][ T6242] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 87.184975][ T6244] loop1: detected capacity change from 0 to 32768 [ 87.189666][ T6248] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 87.194321][ T6244] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 87.299051][ T6251] loop2: detected capacity change from 0 to 32768 [ 87.311392][ T6251] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 87.458917][ T4644] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 87.542073][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 87.640068][ T6259] loop4: detected capacity change from 0 to 32768 [ 87.679719][ T6259] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 87.726562][ T6261] loop2: detected capacity change from 0 to 32768 [ 87.734208][ T6261] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 87.784842][ T6263] loop0: detected capacity change from 0 to 32768 [ 87.789806][ T6263] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 87.803443][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 87.849833][ T6265] loop1: detected capacity change from 0 to 32768 [ 87.861923][ T6265] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 87.920634][ T6267] loop3: detected capacity change from 0 to 32768 [ 87.928262][ T6267] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 87.934070][ T5002] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (5002) [ 87.934198][ T6267] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 87.937023][ T6267] BTRFS info (device loop3): setting nodatacow, compression disabled [ 87.938281][ T6267] BTRFS info (device loop3): setting datacow [ 87.939236][ T6267] BTRFS info (device loop3): doing ref verification [ 87.957282][ T6267] BTRFS info (device loop3): force clearing of disk cache [ 87.963576][ T6267] BTRFS info (device loop3): turning off barriers [ 87.964551][ T6267] BTRFS info (device loop3): enabling ssd optimizations [ 87.965690][ T6267] BTRFS info (device loop3): using spread ssd allocation scheme [ 87.968063][ T6267] BTRFS info (device loop3): using free space tree [ 87.974917][ T6269] loop4: detected capacity change from 0 to 32768 [ 87.975462][ T4644] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 87.977880][ T6269] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.431 (6269) [ 88.059966][ T5002] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 88.123730][ T6271] loop2: detected capacity change from 0 to 32768 [ 88.130503][ T6271] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.432 (6271) [ 88.215922][ T6283] loop4: detected capacity change from 0 to 32768 [ 88.217585][ T6283] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.435 (6283) [ 88.238998][ T6273] loop0: detected capacity change from 0 to 32768 [ 88.240742][ T6273] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.433 (6273) [ 88.263584][ T6267] BTRFS info (device loop3): rebuilding free space tree [ 88.277163][ T5002] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 88.304527][ T6267] BTRFS info (device loop3): scrub: started on devid 1 [ 88.306355][ T6267] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 88.307487][ T6267] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 88.308675][ T6267] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 88.310672][ T6267] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 88.311981][ T6267] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 88.313481][ T6267] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 88.314669][ T6267] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 88.315803][ T6267] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 88.327255][ T6290] loop2: detected capacity change from 0 to 32768 [ 88.333194][ T6290] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.436 (6290) [ 88.336288][ T6267] BTRFS info (device loop3): scrub: finished on devid 1 with status: 0 [ 88.388728][ T6285] loop1: detected capacity change from 0 to 32768 [ 88.390362][ T6285] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.434 (6285) [ 88.393823][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 88.532977][ T4610] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop3 scanned by udevd (4610) [ 88.692164][ T6300] loop4: detected capacity change from 0 to 32768 [ 88.713118][ T6300] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 88.748534][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 88.782108][ T6306] loop2: detected capacity change from 0 to 32768 [ 88.790614][ T6306] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 88.809461][ T6305] loop1: detected capacity change from 0 to 32768 [ 88.814158][ T6305] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 89.168321][ T5002] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 89.178223][ T6317] loop2: detected capacity change from 0 to 32768 [ 89.207047][ T6317] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 89.229806][ T6319] loop0: detected capacity change from 0 to 32768 [ 89.231601][ T4549] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 89.240711][ T6319] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 1970/01/01 00:01:29 executed programs: 443 [ 89.303624][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 89.373461][ T6321] loop4: detected capacity change from 0 to 32768 [ 89.383235][ T6321] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 89.389855][ T6323] loop3: detected capacity change from 0 to 32768 [ 89.395266][ T6323] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 89.396758][ T6323] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 89.398272][ T6323] BTRFS info (device loop3): setting nodatacow, compression disabled [ 89.399605][ T6323] BTRFS info (device loop3): setting datacow [ 89.400552][ T6323] BTRFS info (device loop3): doing ref verification [ 89.401631][ T6323] BTRFS info (device loop3): force clearing of disk cache [ 89.402723][ T6323] BTRFS info (device loop3): turning off barriers [ 89.425162][ T6323] BTRFS info (device loop3): enabling ssd optimizations [ 89.426141][ T6323] BTRFS info (device loop3): using spread ssd allocation scheme [ 89.427222][ T6323] BTRFS info (device loop3): using free space tree [ 89.448134][ T4644] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4644) [ 89.459942][ T6327] loop1: detected capacity change from 0 to 32768 [ 89.461595][ T6327] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.451 (6327) [ 89.471723][ T6325] loop2: detected capacity change from 0 to 32768 [ 89.474829][ T6325] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.450 (6325) [ 89.577217][ T6329] loop0: detected capacity change from 0 to 32768 [ 89.595359][ T6329] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.452 (6329) [ 89.609803][ T6323] BTRFS info (device loop3): rebuilding free space tree [ 89.632260][ T6323] BTRFS info (device loop3): scrub: started on devid 1 [ 89.637244][ T6323] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 89.638352][ T6323] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 89.638610][ T6341] loop4: detected capacity change from 0 to 32768 [ 89.639690][ T6323] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 89.642711][ T6323] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 89.644272][ T6323] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 89.645446][ T6323] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 89.646674][ T6323] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 89.647949][ T6323] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 89.665870][ T6341] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.453 (6341) [ 89.712743][ T6323] BTRFS info (device loop3): scrub: finished on devid 1 with status: 0 [ 89.753319][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 89.886714][ T5002] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by udevd (5002) [ 89.982780][ T6352] loop1: detected capacity change from 0 to 32768 [ 89.995935][ T6351] loop2: detected capacity change from 0 to 32768 [ 90.004226][ T6351] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.455 (6351) [ 90.039466][ T6357] loop0: detected capacity change from 0 to 32768 [ 90.042755][ T6357] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.458 (6357) [ 90.050790][ T4644] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 90.205554][ T4610] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 11 scanned by udevd (4610) [ 90.240652][ T6375] loop4: detected capacity change from 0 to 32768 [ 90.242931][ T6375] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.461 (6375) [ 90.412249][ T6374] loop2: detected capacity change from 0 to 32768 [ 90.437909][ T6374] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.460 (6374) [ 90.550915][ T6380] loop3: detected capacity change from 0 to 32768 [ 90.565762][ T6380] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.462 (6380) [ 90.629012][ T6387] loop4: detected capacity change from 0 to 32768 [ 90.651914][ T6387] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.464 (6387) [ 90.735111][ T6374] _btrfs_printk: 32 callbacks suppressed [ 90.735123][ T6374] BTRFS info (device loop2): rebuilding free space tree [ 90.757205][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 90.765779][ T6374] BTRFS info (device loop2): scrub: started on devid 1 [ 90.767131][ T6374] BTRFS info (device loop2): left=0, need=98304, flags=2 [ 90.768302][ T6374] BTRFS info (device loop2): space_info SYSTEM has 0 free, is not full [ 90.769799][ T6374] BTRFS info (device loop2): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 90.772080][ T6374] BTRFS info (device loop2): global_block_rsv: size 1441792 reserved 1441792 [ 90.773575][ T6374] BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 [ 90.774667][ T6374] BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 [ 90.775844][ T6374] BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 [ 90.777070][ T6374] BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 [ 90.791882][ T6374] BTRFS info (device loop2): scrub: finished on devid 1 with status: 0 [ 90.817085][ T4449] BTRFS info (device loop2): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 90.882724][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 11 scanned by udevd (4549) [ 90.908905][ T4644] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop2 scanned by udevd (4644) [ 90.938016][ T6407] loop0: detected capacity change from 0 to 32768 [ 90.943113][ T6407] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 90.955815][ T6410] loop3: detected capacity change from 0 to 32768 [ 90.957904][ T6410] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 91.008990][ T5002] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 91.122663][ T6416] loop4: detected capacity change from 0 to 32768 [ 91.139681][ T6416] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 91.279762][ T6422] loop1: detected capacity change from 0 to 32768 [ 91.296409][ T6425] loop0: detected capacity change from 0 to 32768 [ 91.301194][ T6422] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 91.304052][ T6425] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 91.384274][ T4610] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 91.516846][ T6427] loop4: detected capacity change from 0 to 32768 [ 91.535330][ T6427] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 91.568076][ T6429] loop0: detected capacity change from 0 to 32768 [ 91.572997][ T6429] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 91.581133][ T6431] loop1: detected capacity change from 0 to 32768 [ 91.589686][ T6433] loop3: detected capacity change from 0 to 32768 [ 91.593239][ T6431] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 91.601549][ T6433] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 91.622377][ T5002] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 91.659312][ T6435] loop2: detected capacity change from 0 to 32768 [ 91.677098][ T6435] BTRFS info (device loop2): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 91.678764][ T6435] BTRFS info (device loop2): using sha256 (sha256-ce) checksum algorithm [ 91.679992][ T6435] BTRFS info (device loop2): setting nodatacow, compression disabled [ 91.681105][ T6435] BTRFS info (device loop2): setting datacow [ 91.682023][ T6435] BTRFS info (device loop2): doing ref verification [ 91.687827][ T6435] BTRFS info (device loop2): force clearing of disk cache [ 91.688857][ T6435] BTRFS info (device loop2): turning off barriers [ 91.689997][ T6435] BTRFS info (device loop2): enabling ssd optimizations [ 91.691191][ T6435] BTRFS info (device loop2): using spread ssd allocation scheme [ 91.692447][ T6435] BTRFS info (device loop2): using free space tree [ 91.831077][ T6445] loop3: detected capacity change from 0 to 32768 [ 91.832677][ T6445] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.482 (6445) [ 91.878778][ T6439] loop0: detected capacity change from 0 to 32768 [ 91.880800][ T6439] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.480 (6439) [ 91.886171][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 91.906569][ T6435] BTRFS info (device loop2): rebuilding free space tree [ 91.911578][ T6435] BTRFS info (device loop2): scrub: started on devid 1 [ 91.915828][ T6435] BTRFS info (device loop2): left=0, need=98304, flags=2 [ 91.916912][ T6435] BTRFS info (device loop2): space_info SYSTEM has 0 free, is not full [ 91.918165][ T6435] BTRFS info (device loop2): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 91.920278][ T6435] BTRFS info (device loop2): global_block_rsv: size 1441792 reserved 1441792 [ 91.921709][ T6435] BTRFS info (device loop2): trans_block_rsv: size 0 reserved 0 [ 91.922882][ T6435] BTRFS info (device loop2): chunk_block_rsv: size 0 reserved 0 [ 91.924167][ T6435] BTRFS info (device loop2): delayed_block_rsv: size 0 reserved 0 [ 91.925393][ T6435] BTRFS info (device loop2): delayed_refs_rsv: size 0 reserved 0 [ 91.928461][ T6435] BTRFS info (device loop2): scrub: finished on devid 1 with status: 0 [ 91.950792][ T6443] loop1: detected capacity change from 0 to 32768 [ 91.952587][ T4449] BTRFS info (device loop2): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 91.960397][ T6443] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.481 (6443) [ 91.987788][ T6438] loop4: detected capacity change from 0 to 32768 [ 92.003227][ T6438] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by syz.4.479 (6438) [ 92.006208][ T6438] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 92.007726][ T6438] BTRFS info (device loop4): using sha256 (sha256-ce) checksum algorithm [ 92.008981][ T6438] BTRFS info (device loop4): setting nodatacow, compression disabled [ 92.010287][ T6438] BTRFS info (device loop4): setting datacow [ 92.011271][ T6438] BTRFS info (device loop4): doing ref verification [ 92.035434][ T6438] BTRFS info (device loop4): force clearing of disk cache [ 92.036663][ T6438] BTRFS info (device loop4): turning off barriers [ 92.037723][ T6438] BTRFS info (device loop4): enabling ssd optimizations [ 92.038889][ T6438] BTRFS info (device loop4): using spread ssd allocation scheme [ 92.040146][ T6438] BTRFS info (device loop4): using free space tree [ 92.046869][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 92.119778][ T6464] loop0: detected capacity change from 0 to 32768 [ 92.121500][ T6464] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.485 (6464) [ 92.261302][ T6468] loop1: detected capacity change from 0 to 32768 [ 92.264355][ T6468] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.486 (6468) [ 92.301376][ T6462] loop3: detected capacity change from 0 to 32768 [ 92.309775][ T6462] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.483 (6462) [ 92.325808][ T6438] BTRFS info (device loop4): rebuilding free space tree [ 92.341102][ T6438] BTRFS info (device loop4): scrub: started on devid 1 [ 92.342512][ T6438] BTRFS info (device loop4): left=0, need=98304, flags=2 [ 92.350056][ T6438] BTRFS info (device loop4): space_info SYSTEM has 0 free, is not full [ 92.351253][ T6438] BTRFS info (device loop4): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 92.353259][ T6438] BTRFS info (device loop4): global_block_rsv: size 1441792 reserved 1441792 [ 92.354544][ T6438] BTRFS info (device loop4): trans_block_rsv: size 0 reserved 0 [ 92.355660][ T6438] BTRFS info (device loop4): chunk_block_rsv: size 0 reserved 0 [ 92.356806][ T6438] BTRFS info (device loop4): delayed_block_rsv: size 0 reserved 0 [ 92.357949][ T6438] BTRFS info (device loop4): delayed_refs_rsv: size 0 reserved 0 [ 92.379527][ T6438] BTRFS info (device loop4): scrub: finished on devid 1 with status: 0 [ 92.446093][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 92.453542][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 92.518636][ T6475] loop0: detected capacity change from 0 to 32768 [ 92.520270][ T6475] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.487 (6475) [ 92.539565][ T6475] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 92.541280][ T6475] BTRFS info (device loop0): using sha256 (sha256-ce) checksum algorithm [ 92.542697][ T6475] BTRFS info (device loop0): setting nodatacow, compression disabled [ 92.547545][ T6475] BTRFS info (device loop0): setting datacow [ 92.548536][ T6475] BTRFS info (device loop0): doing ref verification [ 92.549653][ T6475] BTRFS info (device loop0): force clearing of disk cache [ 92.550846][ T6475] BTRFS info (device loop0): turning off barriers [ 92.551820][ T6475] BTRFS info (device loop0): enabling ssd optimizations [ 92.564658][ T6475] BTRFS info (device loop0): using spread ssd allocation scheme [ 92.565901][ T6475] BTRFS info (device loop0): using free space tree [ 92.591906][ T6489] loop1: detected capacity change from 0 to 32768 [ 92.602054][ T6489] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.488 (6489) [ 92.672240][ T4610] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (4610) [ 92.681193][ T6497] loop4: detected capacity change from 0 to 32768 [ 92.715240][ T6497] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.489 (6497) [ 92.726068][ T6475] BTRFS info (device loop0): rebuilding free space tree [ 92.769625][ T6493] loop2: detected capacity change from 0 to 32768 [ 92.771884][ T6493] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.490 (6493) [ 92.774854][ T6475] BTRFS info (device loop0): scrub: started on devid 1 [ 92.776980][ T6475] BTRFS info (device loop0): left=0, need=98304, flags=2 [ 92.778140][ T6475] BTRFS info (device loop0): space_info SYSTEM has 0 free, is not full [ 92.779462][ T6475] BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 92.781574][ T6475] BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 [ 92.782825][ T6475] BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 [ 92.784112][ T6475] BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 [ 92.785365][ T6475] BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 [ 92.786652][ T6475] BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 [ 92.827959][ T6475] BTRFS info (device loop0): scrub: finished on devid 1 with status: 0 [ 92.857564][ T4440] BTRFS info (device loop0): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 92.927981][ T6495] loop3: detected capacity change from 0 to 32768 [ 92.933303][ T6495] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.491 (6495) [ 92.945943][ T6495] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 92.947655][ T6495] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 92.953106][ T6495] BTRFS info (device loop3): setting nodatacow, compression disabled [ 92.954469][ T6495] BTRFS info (device loop3): setting datacow [ 92.955367][ T6495] BTRFS info (device loop3): doing ref verification [ 92.956342][ T6495] BTRFS info (device loop3): force clearing of disk cache [ 92.957438][ T6495] BTRFS info (device loop3): turning off barriers [ 92.958503][ T6495] BTRFS info (device loop3): enabling ssd optimizations [ 92.959689][ T6495] BTRFS info (device loop3): using spread ssd allocation scheme [ 92.960933][ T6495] BTRFS info (device loop3): using free space tree [ 92.969138][ T6504] loop1: detected capacity change from 0 to 32768 [ 92.982678][ T6504] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.492 (6504) [ 93.032848][ T4610] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4610) [ 93.127498][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4556) [ 93.147196][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4644) [ 93.157864][ T6523] loop0: detected capacity change from 0 to 32768 [ 93.168687][ T6523] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.495 (6523) [ 93.178947][ T6495] BTRFS info (device loop3): rebuilding free space tree [ 93.188058][ T6495] BTRFS info (device loop3): scrub: started on devid 1 [ 93.189519][ T6495] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 93.190636][ T6495] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 93.191892][ T6495] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 93.194036][ T6495] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 93.195163][ T6495] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 93.196284][ T6495] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 93.197454][ T6495] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 93.198671][ T6495] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 93.248615][ T4514] BTRFS info (device loop3: state M): space_info DATA+METADATA has 184320 free, is full [ 93.250174][ T4514] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=1437696, readonly=1597440 zone_unusable=0 [ 93.323831][ T6547] loop1: detected capacity change from 0 to 32768 [ 93.344181][ T6547] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz.1.498 (6547) [ 93.540570][ T6542] loop4: detected capacity change from 0 to 32768 [ 93.563136][ T6542] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.496 (6542) [ 93.582292][ T6540] loop2: detected capacity change from 0 to 32768 [ 93.605478][ T6540] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.497 (6540) [ 93.722636][ T6558] loop0: detected capacity change from 0 to 32768 [ 93.723030][ T6565] loop3: detected capacity change from 0 to 32768 [ 93.730080][ T6565] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.501 (6565) [ 93.736279][ T6558] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.500 (6558) [ 93.750197][ T4549] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 11 scanned by udevd (4549) [ 93.779690][ T4610] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 93.900930][ T6580] loop1: detected capacity change from 0 to 32768 [ 93.902855][ T6580] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.503 (6580) [ 93.921445][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4644) [ 93.956246][ T5002] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 94.030133][ T6600] loop4: detected capacity change from 0 to 32768 [ 94.036705][ T6600] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.506 (6600) [ 94.165498][ T4556] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by udevd (4556) [ 94.191811][ T6590] loop2: detected capacity change from 0 to 32768 1970/01/01 00:01:34 executed programs: 503 [ 94.353794][ T6602] loop1: detected capacity change from 0 to 32768 [ 94.355425][ T6602] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.508 (6602) [ 94.370178][ T4549] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 11 scanned by udevd (4549) [ 94.404000][ T5002] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 94.435692][ T6611] loop0: detected capacity change from 0 to 32768 [ 94.437533][ T6611] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.510 (6611) [ 94.480043][ T6606] loop4: detected capacity change from 0 to 32768 [ 94.526980][ T6606] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.509 (6606) [ 94.670303][ T6621] loop3: detected capacity change from 0 to 32768 [ 94.687596][ T6621] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.511 (6621) [ 94.755679][ T6630] loop1: detected capacity change from 0 to 32768 [ 94.763999][ T6630] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.513 (6630) [ 94.766252][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4644) [ 94.806467][ T4610] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (4610) [ 94.847147][ T6632] loop4: detected capacity change from 0 to 32768 [ 94.872334][ T6632] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.514 (6632) [ 94.922790][ T6634] loop0: detected capacity change from 0 to 32768 [ 94.933240][ T6634] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.515 (6634) [ 94.991474][ T6653] loop2: detected capacity change from 0 to 32768 [ 95.050376][ T6653] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.516 (6653) [ 95.119593][ T5002] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 11 scanned by udevd (5002) [ 95.144085][ T6656] loop1: detected capacity change from 0 to 32768 [ 95.171408][ T6659] loop4: detected capacity change from 0 to 32768 [ 95.189689][ T6656] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.517 (6656) [ 95.191905][ T6659] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.518 (6659) [ 95.301126][ T6667] loop0: detected capacity change from 0 to 32768 [ 95.320025][ T6667] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.520 (6667) [ 95.438544][ T6680] loop4: detected capacity change from 0 to 32768 [ 95.443641][ T6680] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by syz.4.521 (6680) [ 95.542625][ T6686] loop0: detected capacity change from 0 to 32768 [ 95.563284][ T6686] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.524 (6686) [ 95.608616][ T4549] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (4549) [ 95.693739][ T6688] loop3: detected capacity change from 0 to 32768 [ 95.698837][ T6688] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.525 (6688) [ 95.708978][ T4610] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4610) [ 95.791096][ T6680] _btrfs_printk: 165 callbacks suppressed [ 95.791108][ T6680] BTRFS info (device loop4): rebuilding free space tree [ 95.796621][ T6680] BTRFS info (device loop4): scrub: started on devid 1 [ 95.797965][ T6680] BTRFS info (device loop4): left=0, need=98304, flags=2 [ 95.799008][ T6680] BTRFS info (device loop4): space_info SYSTEM has 0 free, is not full [ 95.800297][ T6680] BTRFS info (device loop4): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 95.802476][ T6680] BTRFS info (device loop4): global_block_rsv: size 1441792 reserved 1441792 [ 95.803981][ T6680] BTRFS info (device loop4): trans_block_rsv: size 0 reserved 0 [ 95.805161][ T6680] BTRFS info (device loop4): chunk_block_rsv: size 0 reserved 0 [ 95.806492][ T6680] BTRFS info (device loop4): delayed_block_rsv: size 0 reserved 0 [ 95.807738][ T6680] BTRFS info (device loop4): delayed_refs_rsv: size 0 reserved 0 [ 95.811977][ T6690] loop2: detected capacity change from 0 to 32768 [ 95.822209][ T6690] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.523 (6690) [ 95.833460][ T6680] BTRFS info (device loop4): scrub: finished on devid 1 with status: 0 [ 95.890662][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 95.902985][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 95.919255][ T6711] loop1: detected capacity change from 0 to 32768 [ 95.925707][ T6711] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.527 (6711) [ 96.029671][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 96.128055][ T6715] loop3: detected capacity change from 0 to 32768 [ 96.141598][ T6715] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.528 (6715) [ 96.156388][ T6715] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 96.158019][ T6715] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 96.159304][ T6715] BTRFS info (device loop3): setting nodatacow, compression disabled [ 96.160003][ T6717] loop0: detected capacity change from 0 to 32768 [ 96.160473][ T6715] BTRFS info (device loop3): setting datacow [ 96.172504][ T6717] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.529 (6717) [ 96.174361][ T6715] BTRFS info (device loop3): doing ref verification [ 96.182659][ T6715] BTRFS info (device loop3): force clearing of disk cache [ 96.185613][ T6715] BTRFS info (device loop3): turning off barriers [ 96.192788][ T6715] BTRFS info (device loop3): enabling ssd optimizations [ 96.194989][ T6715] BTRFS info (device loop3): using spread ssd allocation scheme [ 96.196399][ T6715] BTRFS info (device loop3): using free space tree [ 96.219686][ T6721] loop2: detected capacity change from 0 to 32768 [ 96.232944][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 96.243131][ T6721] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.531 (6721) [ 96.287816][ T6719] loop4: detected capacity change from 0 to 32768 [ 96.289716][ T6719] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.530 (6719) [ 96.307949][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 96.391153][ T6723] loop1: detected capacity change from 0 to 32768 [ 96.393410][ T6723] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.532 (6723) [ 96.414043][ T6715] BTRFS info (device loop3): rebuilding free space tree [ 96.439232][ T6730] loop0: detected capacity change from 0 to 32768 [ 96.442833][ T6730] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.533 (6730) [ 96.448350][ T6715] BTRFS info (device loop3): scrub: started on devid 1 [ 96.449853][ T6715] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 96.450954][ T6715] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 96.452090][ T6715] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 96.454201][ T6715] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 96.455480][ T6715] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 96.456638][ T6715] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 96.457811][ T6715] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 96.459048][ T6715] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 96.469912][ T6715] BTRFS info (device loop3): scrub: finished on devid 1 with status: 0 [ 96.492720][ T6740] loop2: detected capacity change from 0 to 32768 [ 96.514365][ T6740] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.534 (6740) [ 96.514521][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 96.684164][ T5002] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop3 scanned by udevd (5002) [ 96.772642][ T6748] loop4: detected capacity change from 0 to 32768 [ 96.787683][ T6748] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 96.795967][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 96.867927][ T6755] loop1: detected capacity change from 0 to 32768 [ 96.868796][ T6751] loop2: detected capacity change from 0 to 32768 [ 96.883340][ T6751] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 96.886658][ T6755] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 96.933147][ T4610] blk_print_req_error: 2 callbacks suppressed [ 96.933166][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 96.984141][ T6758] loop0: detected capacity change from 0 to 32768 [ 96.986464][ T6758] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 97.048908][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 97.117305][ T4644] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 97.198985][ T6764] loop1: detected capacity change from 0 to 32768 [ 97.208953][ T6764] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 97.387361][ T6766] loop2: detected capacity change from 0 to 32768 [ 97.401097][ T6766] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 97.458064][ T6768] loop4: detected capacity change from 0 to 32768 [ 97.463427][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 97.473036][ T6768] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 97.481457][ T6770] loop3: detected capacity change from 0 to 32768 [ 97.485590][ T6770] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 97.487187][ T6770] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 97.488462][ T6770] BTRFS info (device loop3): setting nodatacow, compression disabled [ 97.489677][ T6770] BTRFS info (device loop3): setting datacow [ 97.490656][ T6770] BTRFS info (device loop3): doing ref verification [ 97.491718][ T6770] BTRFS info (device loop3): force clearing of disk cache [ 97.496614][ T6774] loop0: detected capacity change from 0 to 32768 [ 97.498570][ T6774] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.548 (6774) [ 97.500465][ T6770] BTRFS info (device loop3): turning off barriers [ 97.501485][ T6770] BTRFS info (device loop3): enabling ssd optimizations [ 97.502622][ T6770] BTRFS info (device loop3): using spread ssd allocation scheme [ 97.503923][ T6770] BTRFS info (device loop3): using free space tree [ 97.516511][ T4610] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by udevd (4610) [ 97.546010][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 97.687169][ T6783] loop1: detected capacity change from 0 to 32768 [ 97.692142][ T6783] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.550 (6783) [ 97.736204][ T6770] BTRFS info (device loop3): rebuilding free space tree [ 97.746107][ T6770] BTRFS info (device loop3): scrub: started on devid 1 [ 97.747483][ T6770] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 97.748597][ T6770] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 97.749971][ T6770] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 97.752245][ T6770] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 97.753925][ T6770] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 97.755112][ T6770] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 97.756344][ T6770] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 97.757559][ T6770] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 97.775499][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 97.806127][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.807738][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=1437696, readonly=1626112 zone_unusable=0 [ 97.810226][ T145] BTRFS info (device loop3: state M): global_block_rsv: size 1441792 reserved 1437696 [ 97.811761][ T145] BTRFS info (device loop3: state M): trans_block_rsv: size 0 reserved 0 [ 97.813218][ T145] BTRFS info (device loop3: state M): chunk_block_rsv: size 0 reserved 0 [ 97.814435][ T145] BTRFS info (device loop3: state M): delayed_block_rsv: size 0 reserved 0 [ 97.815817][ T145] BTRFS info (device loop3: state M): delayed_refs_rsv: size 262144 reserved 0 [ 97.823699][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.825232][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=8192, may_use=1433600, readonly=1626112 zone_unusable=0 [ 97.827504][ T145] BTRFS info (device loop3: state M): global_block_rsv: size 1441792 reserved 1433600 [ 97.828948][ T145] BTRFS info (device loop3: state M): trans_block_rsv: size 0 reserved 0 [ 97.830151][ T145] BTRFS info (device loop3: state M): chunk_block_rsv: size 0 reserved 0 [ 97.831315][ T145] BTRFS info (device loop3: state M): delayed_block_rsv: size 0 reserved 0 [ 97.832541][ T145] BTRFS info (device loop3: state M): delayed_refs_rsv: size 524288 reserved 0 [ 97.857084][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.858697][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=1425408, readonly=1638400 zone_unusable=0 [ 97.861208][ T145] BTRFS info (device loop3: state M): global_block_rsv: size 1441792 reserved 1425408 [ 97.862720][ T145] BTRFS info (device loop3: state M): trans_block_rsv: size 0 reserved 0 [ 97.864093][ T145] BTRFS info (device loop3: state M): chunk_block_rsv: size 0 reserved 0 [ 97.865361][ T145] BTRFS info (device loop3: state M): delayed_block_rsv: size 0 reserved 0 [ 97.866653][ T145] BTRFS info (device loop3: state M): delayed_refs_rsv: size 262144 reserved 0 [ 97.879264][ T6781] loop2: detected capacity change from 0 to 32768 [ 97.885555][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.887077][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=8192, may_use=1421312, readonly=1638400 zone_unusable=0 [ 97.889586][ T145] BTRFS info (device loop3: state M): global_block_rsv: size 1441792 reserved 1421312 [ 97.891249][ T145] BTRFS info (device loop3: state M): trans_block_rsv: size 0 reserved 0 [ 97.892656][ T145] BTRFS info (device loop3: state M): chunk_block_rsv: size 0 reserved 0 [ 97.894165][ T145] BTRFS info (device loop3: state M): delayed_block_rsv: size 0 reserved 0 [ 97.895421][ T145] BTRFS info (device loop3: state M): delayed_refs_rsv: size 524288 reserved 0 [ 97.899900][ T6781] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.549 (6781) [ 97.912163][ T6785] loop4: detected capacity change from 0 to 32768 [ 97.916794][ T6785] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.551 (6785) [ 97.924648][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.926208][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=1425408, readonly=1638400 zone_unusable=0 [ 97.928380][ T145] BTRFS info (device loop3: state M): global_block_rsv: size 1441792 reserved 1425408 [ 97.929748][ T145] BTRFS info (device loop3: state M): trans_block_rsv: size 0 reserved 0 [ 97.930770][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 97.930891][ T145] BTRFS info (device loop3: state M): chunk_block_rsv: size 0 reserved 0 [ 97.933653][ T145] BTRFS info (device loop3: state M): delayed_block_rsv: size 0 reserved 0 [ 97.934945][ T145] BTRFS info (device loop3: state M): delayed_refs_rsv: size 262144 reserved 0 [ 97.955408][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.956874][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=8192, may_use=1421312, readonly=1638400 zone_unusable=0 [ 97.958967][ T145] BTRFS info (device loop3: state M): global_block_rsv: size 1441792 reserved 1421312 [ 97.960365][ T145] BTRFS info (device loop3: state M): trans_block_rsv: size 0 reserved 0 [ 97.961595][ T145] BTRFS info (device loop3: state M): chunk_block_rsv: size 0 reserved 0 [ 97.963055][ T145] BTRFS info (device loop3: state M): delayed_block_rsv: size 0 reserved 0 [ 97.964385][ T145] BTRFS info (device loop3: state M): delayed_refs_rsv: size 524288 reserved 0 [ 97.983809][ T145] BTRFS info (device loop3: state M): cannot satisfy tickets, dumping space info [ 97.985292][ T145] BTRFS info (device loop3: state M): space_info DATA+METADATA has 155648 free, is full [ 97.986713][ T145] BTRFS info (device loop3: state M): space_info total=3276800, used=53248, pinned=0, reserved=0, may_use=1429504, readonly=1638400 zone_unusable=0 [ 97.989119][ T6800] BTRFS info (device loop3: state M): left=0, need=98304, flags=2 [ 97.990320][ T6800] BTRFS error (device loop3: state M): allocation failed flags 2, wanted 4096 tree-log 0, relocation: 0 [ 97.991707][ T6791] loop0: detected capacity change from 0 to 32768 [ 97.992111][ T6800] BTRFS critical (device loop3: state M): entry offset 1048576, bytes 4194304, bitmap no [ 97.997753][ T6791] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.552 (6791) [ 97.998124][ T6800] BTRFS critical (device loop3: state M): entry offset 8523776, bytes 8253440, bitmap no [ 98.002322][ T6800] ------------[ cut here ]------------ [ 98.012485][ T6800] WARNING: CPU: 1 PID: 6800 at fs/btrfs/volumes.c:3265 btrfs_remove_chunk+0x127c/0x18d4 [ 98.013950][ T6800] Modules linked in: [ 98.014542][ T6800] CPU: 1 PID: 6800 Comm: syz.3.546 Not tainted 6.1.148-syzkaller #0 [ 98.015881][ T6800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 98.017429][ T6800] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 98.018729][ T6800] pc : btrfs_remove_chunk+0x127c/0x18d4 [ 98.019520][ T6800] lr : btrfs_remove_chunk+0x127c/0x18d4 [ 98.020406][ T6800] sp : ffff8000233b7640 [ 98.021082][ T6800] x29: ffff8000233b77a0 x28: ffff0000c0666e70 x27: ffff0000c0666e90 [ 98.022324][ T6800] x26: ffff8000233b76e0 x25: ffffffffffffffe4 x24: 1fffe000180ccdd7 [ 98.023595][ T6800] x23: ffff0000c0666ebc x22: ffff0000ccd02150 x21: dfff800000000000 [ 98.024937][ T6800] x20: 0000000000000000 x19: 0000000000000006 x18: ffff800011aabce0 [ 98.026215][ T6800] x17: 1fffe00033eddf7e x16: ffff8000082d2370 x15: 0000000040000000 [ 98.027580][ T6800] x14: 0000000000000002 x13: 1ffff00002a160b1 x12: 0000000000ff0100 [ 98.028877][ T6800] x11: ff0080000a88da14 x10: 0000000000000003 x9 : 7b980b8a184f8700 [ 98.030178][ T6800] x8 : 7b980b8a184f8700 x7 : ffff800008251ec4 x6 : 0000000000000000 [ 98.031437][ T6800] x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 [ 98.032657][ T6800] x2 : 0000000000000006 x1 : ffff800011aad7e0 x0 : ffff80018a6ea000 [ 98.033977][ T6800] Call trace: [ 98.034543][ T6800] btrfs_remove_chunk+0x127c/0x18d4 [ 98.035407][ T6800] btrfs_delete_unused_bgs+0xa1c/0xc74 [ 98.036300][ T6800] btrfs_remount+0xab4/0x1148 [ 98.037078][ T6800] legacy_reconfigure+0xf8/0x110 [ 98.037865][ T6800] reconfigure_super+0x1d4/0x79c [ 98.038628][ T6800] path_mount+0xbd4/0xe78 [ 98.039313][ T6800] __arm64_sys_mount+0x49c/0x584 [ 98.040176][ T6800] invoke_syscall+0x98/0x2bc [ 98.040944][ T6800] el0_svc_common+0x138/0x258 [ 98.041706][ T6800] do_el0_svc+0x58/0x13c [ 98.042378][ T6800] el0_svc+0x58/0x138 [ 98.043006][ T6800] el0t_64_sync_handler+0x84/0xf0 [ 98.043817][ T6800] el0t_64_sync+0x18c/0x190 [ 98.044554][ T6800] irq event stamp: 1650 [ 98.045231][ T6800] hardirqs last enabled at (1649): [] finish_lock_switch+0xb0/0x1c4 [ 98.046798][ T6800] hardirqs last disabled at (1650): [] el1_dbg+0x24/0x80 [ 98.048178][ T6800] softirqs last enabled at (1636): [] handle_softirqs+0xaf8/0xc6c [ 98.049703][ T6800] softirqs last disabled at (1615): [] __do_softirq+0x14/0x20 [ 98.051106][ T6800] ---[ end trace 0000000000000000 ]--- [ 98.105108][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 98.121294][ T6802] loop1: detected capacity change from 0 to 32768 [ 98.123277][ T6802] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.553 (6802) [ 98.136740][ T6800] BTRFS: error (device loop3: state MA) in btrfs_remove_chunk:3265: errno=-28 No space left [ 98.181677][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 98.250483][ T6805] loop2: detected capacity change from 0 to 32768 [ 98.258419][ T6805] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.554 (6805) [ 98.388394][ T6809] loop0: detected capacity change from 0 to 32768 [ 98.407729][ T6809] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.557 (6809) [ 98.418260][ T6807] loop4: detected capacity change from 0 to 32768 [ 98.420778][ T6807] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.555 (6807) [ 98.443282][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 98.444986][ T5002] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 13 scanned by udevd (5002) [ 98.455713][ T4644] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 98.507596][ T6814] loop1: detected capacity change from 0 to 32768 [ 98.522855][ T6814] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.558 (6814) [ 98.550008][ T6811] loop3: detected capacity change from 0 to 32768 [ 98.557981][ T6811] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.556 (6811) [ 98.635945][ T6830] loop4: detected capacity change from 0 to 32768 [ 98.637790][ T6830] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.560 (6830) [ 98.855208][ T4549] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop2 scanned by udevd (4549) [ 98.887249][ T6832] loop0: detected capacity change from 0 to 32768 [ 98.896143][ T6832] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 99.000811][ T6842] loop1: detected capacity change from 0 to 32768 [ 99.017113][ T6842] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 99.040090][ T5002] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 99.078913][ T4644] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 99.249912][ T6847] loop4: detected capacity change from 0 to 32768 [ 99.258236][ T6847] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 99.296037][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 1970/01/01 00:01:39 executed programs: 563 [ 99.342111][ T6853] loop3: detected capacity change from 0 to 32768 [ 99.353761][ T6853] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 99.466132][ T4610] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 99.617236][ T6857] loop1: detected capacity change from 0 to 32768 [ 99.633007][ T6857] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 99.659658][ T6859] loop2: detected capacity change from 0 to 32768 [ 99.681750][ T6861] loop4: detected capacity change from 0 to 32768 [ 99.687002][ T6861] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.573 (6861) [ 99.797902][ T6863] loop3: detected capacity change from 0 to 32768 [ 99.800437][ T6863] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.574 (6863) [ 99.865303][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 99.935993][ T6875] loop1: detected capacity change from 0 to 32768 [ 99.937817][ T6875] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.576 (6875) [ 100.093191][ T6885] loop0: detected capacity change from 0 to 32768 [ 100.103039][ T6885] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.578 (6885) [ 100.136562][ T6881] loop4: detected capacity change from 0 to 32768 [ 100.141275][ T6881] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.577 (6881) [ 100.215635][ T6890] loop3: detected capacity change from 0 to 32768 [ 100.229318][ T6890] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.579 (6890) [ 100.315252][ T6893] loop2: detected capacity change from 0 to 32768 [ 100.317405][ T6893] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.580 (6893) [ 100.395254][ T6895] loop1: detected capacity change from 0 to 32768 [ 100.402278][ T6895] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.581 (6895) [ 100.444492][ T6917] loop2: detected capacity change from 0 to 32768 [ 100.451305][ T6917] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.584 (6917) [ 100.596665][ T6915] loop4: detected capacity change from 0 to 32768 [ 100.613012][ T6915] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by syz.4.583 (6915) [ 100.641358][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4556) [ 100.697133][ T5002] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by udevd (5002) [ 100.722109][ T6922] loop1: detected capacity change from 0 to 32768 [ 100.726281][ T6922] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.586 (6922) [ 100.782831][ T6924] loop2: detected capacity change from 0 to 32768 [ 100.793266][ T6915] _btrfs_printk: 118 callbacks suppressed [ 100.793275][ T6915] BTRFS info (device loop4): scrub: finished on devid 1 with status: 0 [ 100.815222][ T6920] loop0: detected capacity change from 0 to 32768 [ 100.820926][ T6924] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.587 (6924) [ 100.833383][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 100.879352][ T6920] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.585 (6920) [ 100.908416][ T6930] loop3: detected capacity change from 0 to 32768 [ 100.910063][ T6930] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop3 scanned by syz.3.588 (6930) [ 100.913015][ T6930] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 100.914626][ T6930] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 100.915888][ T6930] BTRFS info (device loop3): setting nodatacow, compression disabled [ 100.917056][ T6930] BTRFS info (device loop3): setting datacow [ 100.917949][ T6930] BTRFS info (device loop3): doing ref verification [ 100.918852][ T6930] BTRFS info (device loop3): force clearing of disk cache [ 100.919881][ T6930] BTRFS info (device loop3): turning off barriers [ 100.920852][ T6930] BTRFS info (device loop3): enabling ssd optimizations [ 100.921825][ T6930] BTRFS info (device loop3): using spread ssd allocation scheme [ 100.947581][ T6930] BTRFS info (device loop3): using free space tree [ 100.973607][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 101.144555][ T6949] loop0: detected capacity change from 0 to 32768 [ 101.146630][ T6949] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.591 (6949) [ 101.197968][ T6930] BTRFS info (device loop3): rebuilding free space tree [ 101.219602][ T6930] BTRFS info (device loop3): scrub: started on devid 1 [ 101.221717][ T6930] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 101.222737][ T6930] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 101.224166][ T6930] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 101.226263][ T6930] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 101.227485][ T6930] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 101.228671][ T6930] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 101.229884][ T6930] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 101.231068][ T6930] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 101.257284][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 11 scanned by udevd (4644) [ 101.297850][ T6930] BTRFS info (device loop3: state M): scrub: not finished on devid 1 with status: -125 [ 101.320865][ T6951] loop1: detected capacity change from 0 to 32768 [ 101.355236][ T6951] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.592 (6951) [ 101.357100][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 101.416805][ T4556] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by udevd (4556) [ 101.477672][ T6971] loop4: detected capacity change from 0 to 32768 [ 101.493300][ T4549] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 101.495259][ T6971] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 101.669166][ T6977] loop2: detected capacity change from 0 to 32768 [ 101.675215][ T6977] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 101.712612][ T6979] loop1: detected capacity change from 0 to 32768 [ 101.728267][ T6979] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 101.828380][ T6985] loop4: detected capacity change from 0 to 32768 [ 101.850042][ T6985] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 102.038610][ T6987] loop2: detected capacity change from 0 to 32768 [ 102.049642][ T6987] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 102.081729][ T6989] loop3: detected capacity change from 0 to 32768 [ 102.088144][ T6991] loop1: detected capacity change from 0 to 32768 [ 102.091910][ T6991] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 102.138737][ T6989] BTRFS info (device loop3): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 102.140329][ T6989] BTRFS info (device loop3): using sha256 (sha256-ce) checksum algorithm [ 102.141735][ T6989] BTRFS info (device loop3): setting nodatacow, compression disabled [ 102.143362][ T6989] BTRFS info (device loop3): setting datacow [ 102.144300][ T6989] BTRFS info (device loop3): doing ref verification [ 102.145300][ T6989] BTRFS info (device loop3): force clearing of disk cache [ 102.146361][ T6989] BTRFS info (device loop3): turning off barriers [ 102.147292][ T6989] BTRFS info (device loop3): enabling ssd optimizations [ 102.148337][ T6989] BTRFS info (device loop3): using spread ssd allocation scheme [ 102.149444][ T6989] BTRFS info (device loop3): using free space tree [ 102.162997][ T4610] blk_print_req_error: 7 callbacks suppressed [ 102.163016][ T4610] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 102.207579][ T4644] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4644) [ 102.343221][ T6997] loop2: detected capacity change from 0 to 32768 [ 102.345774][ T6997] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.605 (6997) [ 102.393397][ T7002] loop4: detected capacity change from 0 to 32768 [ 102.399248][ T7002] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.606 (7002) [ 102.434362][ T6989] BTRFS info (device loop3): rebuilding free space tree [ 102.439203][ T6989] BTRFS info (device loop3): scrub: started on devid 1 [ 102.440560][ T6989] BTRFS info (device loop3): left=0, need=98304, flags=2 [ 102.441699][ T6989] BTRFS info (device loop3): space_info SYSTEM has 0 free, is not full [ 102.443142][ T6989] BTRFS info (device loop3): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 102.445163][ T6989] BTRFS info (device loop3): global_block_rsv: size 1441792 reserved 1441792 [ 102.446388][ T6989] BTRFS info (device loop3): trans_block_rsv: size 0 reserved 0 [ 102.447484][ T6989] BTRFS info (device loop3): chunk_block_rsv: size 0 reserved 0 [ 102.448576][ T6989] BTRFS info (device loop3): delayed_block_rsv: size 0 reserved 0 [ 102.449769][ T6989] BTRFS info (device loop3): delayed_refs_rsv: size 0 reserved 0 [ 102.467082][ T7009] loop1: detected capacity change from 0 to 32768 [ 102.475314][ T7009] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.607 (7009) [ 102.476461][ T6989] BTRFS info (device loop3): scrub: finished on devid 1 with status: 0 [ 102.481050][ T7008] loop0: detected capacity change from 0 to 32768 [ 102.491693][ T7008] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.608 (7008) [ 102.522716][ T4450] BTRFS info (device loop3): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 102.550125][ T5002] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 102.724098][ T7025] loop4: detected capacity change from 0 to 32768 [ 102.735574][ T7025] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop4 scanned by syz.4.611 (7025) [ 102.738439][ T7025] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 102.740167][ T7025] BTRFS info (device loop4): using sha256 (sha256-ce) checksum algorithm [ 102.741492][ T7025] BTRFS info (device loop4): setting nodatacow, compression disabled [ 102.742734][ T7025] BTRFS info (device loop4): setting datacow [ 102.743748][ T7025] BTRFS info (device loop4): doing ref verification [ 102.744761][ T7025] BTRFS info (device loop4): force clearing of disk cache [ 102.755336][ T7025] BTRFS info (device loop4): turning off barriers [ 102.756486][ T7025] BTRFS info (device loop4): enabling ssd optimizations [ 102.757625][ T7025] BTRFS info (device loop4): using spread ssd allocation scheme [ 102.758864][ T7025] BTRFS info (device loop4): using free space tree [ 102.831415][ T7023] loop2: detected capacity change from 0 to 32768 [ 102.838904][ T4610] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 11 scanned by udevd (4610) [ 102.841733][ T7027] loop1: detected capacity change from 0 to 32768 [ 102.886817][ T7023] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.610 (7023) [ 102.889349][ T7027] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.612 (7027) [ 102.911543][ T7031] loop0: detected capacity change from 0 to 32768 [ 102.926180][ T7031] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.613 (7031) [ 102.931250][ T7025] BTRFS info (device loop4): rebuilding free space tree [ 102.951787][ T7025] BTRFS info (device loop4): scrub: started on devid 1 [ 102.954189][ T7025] BTRFS info (device loop4): left=0, need=98304, flags=2 [ 102.955290][ T7025] BTRFS info (device loop4): space_info SYSTEM has 0 free, is not full [ 102.956663][ T7025] BTRFS info (device loop4): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 102.958756][ T7025] BTRFS info (device loop4): global_block_rsv: size 1441792 reserved 1441792 [ 102.960224][ T7025] BTRFS info (device loop4): trans_block_rsv: size 0 reserved 0 [ 102.961543][ T7025] BTRFS info (device loop4): chunk_block_rsv: size 0 reserved 0 [ 102.962751][ T7025] BTRFS info (device loop4): delayed_block_rsv: size 0 reserved 0 [ 102.964167][ T7025] BTRFS info (device loop4): delayed_refs_rsv: size 0 reserved 0 [ 103.006061][ T7025] BTRFS info (device loop4: state M): scrub: not finished on devid 1 with status: -125 [ 103.065360][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 103.324489][ T4549] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop4 scanned by udevd (4549) [ 103.329637][ T7057] loop3: detected capacity change from 0 to 32768 [ 103.336113][ T4644] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 103.355756][ T7057] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 103.471029][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 103.483944][ T5002] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 103.593637][ T7063] loop2: detected capacity change from 0 to 32768 [ 103.646058][ T7065] loop0: detected capacity change from 0 to 32768 [ 103.647687][ T7063] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 103.650191][ T7065] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 103.690781][ T4610] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 103.754570][ T7072] loop1: detected capacity change from 0 to 32768 [ 103.763272][ T7072] BTRFS error: device /dev/loop1 already registered with a higher generation, found 8 expect 11 [ 103.992706][ T7078] loop0: detected capacity change from 0 to 32768 [ 104.015296][ T7078] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 104.052336][ T7080] loop4: detected capacity change from 0 to 32768 [ 104.057126][ T7080] BTRFS info (device loop4): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 104.058848][ T7080] BTRFS info (device loop4): using sha256 (sha256-ce) checksum algorithm [ 104.060112][ T7080] BTRFS info (device loop4): setting nodatacow, compression disabled [ 104.061276][ T7080] BTRFS info (device loop4): setting datacow [ 104.062165][ T7080] BTRFS info (device loop4): doing ref verification [ 104.069870][ T4644] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by udevd (4644) [ 104.075573][ T7080] BTRFS info (device loop4): force clearing of disk cache [ 104.076694][ T7080] BTRFS info (device loop4): turning off barriers [ 104.077658][ T7080] BTRFS info (device loop4): enabling ssd optimizations [ 104.078885][ T7080] BTRFS info (device loop4): using spread ssd allocation scheme [ 104.080108][ T7080] BTRFS info (device loop4): using free space tree [ 104.162980][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 104.177934][ T7083] loop1: detected capacity change from 0 to 32768 [ 104.179763][ T7083] BTRFS warning: duplicate device /dev/loop1 devid 1 generation 8 scanned by syz.1.630 (7083) [ 104.240715][ T7080] BTRFS info (device loop4): rebuilding free space tree [ 104.251207][ T7094] loop0: detected capacity change from 0 to 32768 [ 104.255816][ T7094] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.632 (7094) [ 104.279423][ T5002] I/O error, dev loop1, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 104.284944][ T7086] loop3: detected capacity change from 0 to 32768 [ 104.299762][ T7086] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.631 (7086) 1970/01/01 00:01:44 executed programs: 626 [ 104.317049][ T7080] BTRFS info (device loop4): scrub: started on devid 1 [ 104.319082][ T7080] BTRFS info (device loop4): left=0, need=98304, flags=2 [ 104.320306][ T7080] BTRFS info (device loop4): space_info SYSTEM has 0 free, is not full [ 104.321549][ T7080] BTRFS info (device loop4): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 104.323615][ T7080] BTRFS info (device loop4): global_block_rsv: size 1441792 reserved 1441792 [ 104.324947][ T7080] BTRFS info (device loop4): trans_block_rsv: size 0 reserved 0 [ 104.326185][ T7080] BTRFS info (device loop4): chunk_block_rsv: size 0 reserved 0 [ 104.327455][ T7080] BTRFS info (device loop4): delayed_block_rsv: size 0 reserved 0 [ 104.328697][ T7080] BTRFS info (device loop4): delayed_refs_rsv: size 0 reserved 0 [ 104.337139][ T7080] BTRFS info (device loop4): scrub: finished on devid 1 with status: 0 [ 104.439708][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by udevd (4556) [ 104.443397][ T4452] BTRFS info (device loop4): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 104.620196][ T7109] loop1: detected capacity change from 0 to 32768 [ 104.620860][ T7111] loop2: detected capacity change from 0 to 32768 [ 104.643023][ T7109] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz.1.634 (7109) [ 104.645412][ T7111] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.636 (7111) [ 104.647676][ T7109] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 104.649185][ T7109] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 104.650481][ T7109] BTRFS info (device loop1): setting nodatacow, compression disabled [ 104.651730][ T7109] BTRFS info (device loop1): setting datacow [ 104.652656][ T7109] BTRFS info (device loop1): doing ref verification [ 104.666090][ T7109] BTRFS info (device loop1): force clearing of disk cache [ 104.667211][ T7109] BTRFS info (device loop1): turning off barriers [ 104.668196][ T7109] BTRFS info (device loop1): enabling ssd optimizations [ 104.668416][ T7113] loop0: detected capacity change from 0 to 32768 [ 104.669139][ T7109] BTRFS info (device loop1): using spread ssd allocation scheme [ 104.671330][ T7109] BTRFS info (device loop1): using free space tree [ 104.678601][ T7113] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.637 (7113) [ 104.695220][ T4644] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 104.792585][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 104.829437][ T7115] loop3: detected capacity change from 0 to 32768 [ 104.837875][ T7115] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.638 (7115) [ 104.862319][ T4549] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 11 scanned by udevd (4549) [ 104.945719][ T4610] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 105.009624][ T7123] loop2: detected capacity change from 0 to 32768 [ 105.011341][ T7123] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.639 (7123) [ 105.143042][ T7138] loop0: detected capacity change from 0 to 32768 [ 105.155395][ T7138] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz.0.641 (7138) [ 105.171253][ T7143] loop4: detected capacity change from 0 to 32768 [ 105.184092][ T7143] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.642 (7143) [ 105.208665][ T7145] loop3: detected capacity change from 0 to 32768 [ 105.210373][ T7145] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.644 (7145) [ 105.254120][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 105.277540][ T4610] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 105.427766][ T7166] loop4: detected capacity change from 0 to 32768 [ 105.433168][ T7166] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.646 (7166) [ 105.496657][ T7150] loop2: detected capacity change from 0 to 32768 [ 105.523041][ T7150] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop2 scanned by syz.2.645 (7150) [ 105.538404][ T4549] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by udevd (4549) [ 105.636123][ T4556] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 11 scanned by udevd (4556) [ 105.639757][ T7172] loop4: detected capacity change from 0 to 32768 [ 105.647331][ T7172] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.650 (7172) [ 105.723088][ T4549] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 105.765436][ T7170] loop3: detected capacity change from 0 to 32768 [ 105.767127][ T7170] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.647 (7170) [ 105.869301][ T7174] loop1: detected capacity change from 0 to 32768 [ 105.886369][ T7174] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop1 scanned by syz.1.649 (7174) [ 105.893365][ T7174] _btrfs_printk: 56 callbacks suppressed [ 105.893374][ T7174] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 105.898130][ T7177] loop0: detected capacity change from 0 to 32768 [ 105.913003][ T7174] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 105.914393][ T7174] BTRFS info (device loop1): setting nodatacow, compression disabled [ 105.915622][ T7174] BTRFS info (device loop1): setting datacow [ 105.916586][ T7174] BTRFS info (device loop1): doing ref verification [ 105.917636][ T7174] BTRFS info (device loop1): force clearing of disk cache [ 105.918792][ T7174] BTRFS info (device loop1): turning off barriers [ 105.919921][ T7174] BTRFS info (device loop1): enabling ssd optimizations [ 105.921111][ T7174] BTRFS info (device loop1): using spread ssd allocation scheme [ 105.922413][ T7174] BTRFS info (device loop1): using free space tree [ 105.927619][ T7177] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.648 (7177) [ 106.078225][ T7196] loop4: detected capacity change from 0 to 32768 [ 106.084248][ T7196] BTRFS warning: duplicate device /dev/loop4 devid 1 generation 8 scanned by syz.4.651 (7196) [ 106.138559][ T4644] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 11 scanned by udevd (4644) [ 106.161221][ T7174] BTRFS info (device loop1): rebuilding free space tree [ 106.189455][ T7174] BTRFS info (device loop1): scrub: started on devid 1 [ 106.190888][ T7174] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 106.192064][ T7174] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 106.193496][ T7174] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 106.195587][ T7174] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 106.196973][ T7174] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 106.198254][ T7174] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 106.199495][ T7174] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 106.200819][ T7174] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 106.235916][ T7200] loop3: detected capacity change from 0 to 32768 [ 106.244946][ T7200] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.653 (7200) [ 106.250538][ T7174] BTRFS info (device loop1): scrub: finished on devid 1 with status: 0 [ 106.293655][ T4442] BTRFS info (device loop1): last unmount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 106.479203][ T4610] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 11 /dev/loop1 scanned by udevd (4610) [ 106.490386][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 106.507942][ T7223] loop2: detected capacity change from 0 to 32768 [ 106.514209][ T7223] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 106.529877][ T7226] loop4: detected capacity change from 0 to 32768 [ 106.535823][ T7226] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 106.676514][ T7232] loop3: detected capacity change from 0 to 32768 [ 106.685498][ T7232] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 106.781612][ T4644] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 106.814127][ T7236] loop4: detected capacity change from 0 to 32768 [ 106.917086][ T4556] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 106.940712][ T7236] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 107.099992][ T7245] loop2: detected capacity change from 0 to 32768 [ 107.101767][ T7245] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 107.123172][ T7243] loop3: detected capacity change from 0 to 32768 [ 107.130704][ T7243] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 107.348870][ T4549] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 107.360174][ T7251] loop0: detected capacity change from 0 to 32768 [ 107.361826][ T7251] BTRFS error: device /dev/loop0 already registered with a higher generation, found 8 expect 11 [ 107.411318][ T7253] loop3: detected capacity change from 0 to 32768 [ 107.423066][ T7253] BTRFS error: device /dev/loop3 already registered with a higher generation, found 8 expect 11 [ 107.443325][ T4556] blk_print_req_error: 4 callbacks suppressed [ 107.443338][ T4556] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 107.492703][ T7255] loop2: detected capacity change from 0 to 32768 [ 107.505847][ T7255] BTRFS error: device /dev/loop2 already registered with a higher generation, found 8 expect 11 [ 107.532306][ T7257] loop4: detected capacity change from 0 to 32768 [ 107.548219][ T7257] BTRFS error: device /dev/loop4 already registered with a higher generation, found 8 expect 11 [ 107.558513][ T4644] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 107.581201][ T7259] loop1: detected capacity change from 0 to 32768 [ 107.588947][ T7259] BTRFS info (device loop1): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d [ 107.590449][ T7259] BTRFS info (device loop1): using sha256 (sha256-ce) checksum algorithm [ 107.591688][ T7259] BTRFS info (device loop1): setting nodatacow, compression disabled [ 107.592831][ T7259] BTRFS info (device loop1): setting datacow [ 107.594601][ T7259] BTRFS info (device loop1): doing ref verification [ 107.595517][ T7259] BTRFS info (device loop1): force clearing of disk cache [ 107.596543][ T7259] BTRFS info (device loop1): turning off barriers [ 107.597372][ T7259] BTRFS info (device loop1): enabling ssd optimizations [ 107.598295][ T7259] BTRFS info (device loop1): using spread ssd allocation scheme [ 107.604720][ T7259] BTRFS info (device loop1): using free space tree [ 107.695243][ T7263] loop0: detected capacity change from 0 to 32768 [ 107.698442][ T7263] BTRFS warning: duplicate device /dev/loop0 devid 1 generation 8 scanned by syz.0.675 (7263) [ 107.727165][ T7261] loop3: detected capacity change from 0 to 32768 [ 107.729027][ T7261] BTRFS warning: duplicate device /dev/loop3 devid 1 generation 8 scanned by syz.3.674 (7261) [ 107.765255][ T5002] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 [ 107.795499][ T7267] loop2: detected capacity change from 0 to 32768 [ 107.797569][ T7267] BTRFS warning: duplicate device /dev/loop2 devid 1 generation 8 scanned by syz.2.676 (7267) [ 107.866745][ T7259] BTRFS info (device loop1): rebuilding free space tree [ 107.927894][ T7259] BTRFS info (device loop1): scrub: started on devid 1 [ 107.929509][ T7259] BTRFS info (device loop1): left=0, need=98304, flags=2 [ 107.930541][ T7259] BTRFS info (device loop1): space_info SYSTEM has 0 free, is not full [ 107.931831][ T7259] BTRFS info (device loop1): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 [ 107.934085][ T7259] BTRFS info (device loop1): global_block_rsv: size 1441792 reserved 1441792 [ 107.935392][ T7259] BTRFS info (device loop1): trans_block_rsv: size 0 reserved 0 [ 107.936462][ T7259] BTRFS info (device loop1): chunk_block_rsv: size 0 reserved 0 [ 107.937691][ T7259] BTRFS info (device loop1): delayed_block_rsv: size 0 reserved 0 [ 107.939076][ T7259] BTRFS info (device loop1): delayed_refs_rsv: size 0 reserved 0 [ 107.948814][ T7259] BTRFS info (device loop1): scrub: finished on devid 1 with status: 0 [ 107.983181][ T4549] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2