Warning: Permanently added '10.128.0.209' (ED25519) to the list of known hosts. executing program [ 35.580860][ T4295] loop0: detected capacity change from 0 to 32768 [ 35.590536][ T4295] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 35.592938][ T4295] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 35.605512][ T4295] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 35.609143][ T14] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 35.611170][ T14] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 35.649415][ T14] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 38ms [ 35.651959][ T14] gfs2: fsid=syz:syz.0: jid=0: Done [ 35.653668][ T4295] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 35.744251][ T4295] gfs2: fsid=syz:syz.0: found 1 quota changes executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.712605][ T4299] ------------[ cut here ]------------ [ 39.714311][ T4299] WARNING: CPU: 1 PID: 4299 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xce0 [ 39.717321][ T4299] Modules linked in: [ 39.718410][ T4299] CPU: 1 PID: 4299 Comm: gfs2_quotad Not tainted 6.1.141-syzkaller #0 [ 39.720647][ T4299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 39.723412][ T4299] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 39.725612][ T4299] pc : __folio_mark_dirty+0x8a0/0xce0 [ 39.727193][ T4299] lr : __folio_mark_dirty+0x8a0/0xce0 [ 39.728678][ T4299] sp : ffff8000207577c0 [ 39.729773][ T4299] x29: ffff8000207577e0 x28: 1fffff80006188a0 x27: dfff800000000000 [ 39.731979][ T4299] x26: 0000000000000000 x25: ffff0000c0543e90 x24: 0000000000000001 [ 39.734176][ T4299] x23: 0000000000000000 x22: fffffc00030c4508 x21: 1fffe000180a87d2 [ 39.736485][ T4299] x20: ffff0000ccb9e250 x19: fffffc00030c4500 x18: ffff800011a7bce0 [ 39.738722][ T4299] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 39.740873][ T4299] x14: ffff0000c6fa4218 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 [ 39.743087][ T4299] x11: ff008000086fa924 x10: 0000000000000000 x9 : ffff8000086fa924 [ 39.745300][ T4299] x8 : ffff0000c6fa3780 x7 : ffff8000086fa0c8 x6 : 0000000000000000 [ 39.747455][ T4299] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008a45288 [ 39.749629][ T4299] x2 : ffff0000ceef2060 x1 : 0000000000000000 x0 : 0000000000000000 [ 39.752010][ T4299] Call trace: [ 39.752899][ T4299] __folio_mark_dirty+0x8a0/0xce0 [ 39.754309][ T4299] mark_buffer_dirty+0x2b8/0x5cc [ 39.755683][ T4299] gfs2_unpin+0x120/0x914 [ 39.756955][ T4299] buf_lo_after_commit+0x140/0x188 [ 39.758383][ T4299] gfs2_log_flush+0xbc8/0x1aa0 [ 39.759718][ T4299] do_sync+0x88c/0xa94 [ 39.760853][ T4299] gfs2_quota_sync+0x2e0/0x528 [ 39.762140][ T4299] gfs2_quotad+0x2d8/0x4fc [ 39.763419][ T4299] kthread+0x250/0x2d8 [ 39.764545][ T4299] ret_from_fork+0x10/0x20 [ 39.765753][ T4299] irq event stamp: 286 [ 39.766880][ T4299] hardirqs last enabled at (285): [] folio_memcg_lock+0xe8/0x1fc [ 39.769586][ T4299] hardirqs last disabled at (286): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 39.772399][ T4299] softirqs last enabled at (0): [] copy_process+0x1244/0x3670 [ 39.774916][ T4299] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 39.776932][ T4299] ---[ end trace 0000000000000000 ]--- executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 44.749838][ T55] ------------[ cut here ]------------ [ 44.751539][ T55] WARNING: CPU: 0 PID: 55 at include/linux/backing-dev.h:247 __folio_start_writeback+0x868/0xa68 [ 44.754458][ T55] Modules linked in: [ 44.755514][ T55] CPU: 0 PID: 55 Comm: kworker/u4:3 Tainted: G W 6.1.141-syzkaller #0 [ 44.758173][ T55] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 44.760960][ T55] Workqueue: writeback wb_workfn (flush-7:0) [ 44.762605][ T55] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.764808][ T55] pc : __folio_start_writeback+0x868/0xa68 [ 44.766499][ T55] lr : __folio_start_writeback+0x868/0xa68 [ 44.768249][ T55] sp : ffff80001ce36bc0 [ 44.769434][ T55] x29: ffff80001ce36ca0 x28: dfff800000000000 x27: 0000000000000000 [ 44.771651][ T55] x26: ffff7000039c6d80 x25: 0000000000000000 x24: ffff0000ccb9ece0 [ 44.773812][ T55] x23: ffff80001ce36c20 x22: ffff0000c0543ce8 x21: 0000000000000001 [ 44.776009][ T55] x20: fffffc00034aa688 x19: fffffc00034aa680 x18: ffff800011a7bce0 [ 44.778207][ T55] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 44.780410][ T55] x14: ffff0000c435ddd8 x13: ffff0000c435de78 x12: 0000000000ff0100 [ 44.782642][ T55] x11: ff008000086fce3c x10: 0000000000000000 x9 : ffff8000086fce3c [ 44.784829][ T55] x8 : ffff0000c435d340 x7 : 0000000000000000 x6 : 0000000000000000 [ 44.787107][ T55] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086fc8fc [ 44.789307][ T55] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 44.791518][ T55] Call trace: [ 44.792427][ T55] __folio_start_writeback+0x868/0xa68 [ 44.793918][ T55] set_page_writeback+0x5c/0x7c [ 44.795255][ T55] gfs2_aspace_writepage+0x520/0x6e8 [ 44.796796][ T55] __writepage+0x70/0x18c [ 44.798047][ T55] write_cache_pages+0x73c/0xdd4 [ 44.799455][ T55] do_writepages+0x320/0x4fc [ 44.800705][ T55] filemap_fdatawrite_wbc+0x124/0x174 [ 44.802308][ T55] filemap_fdatawrite+0xc4/0x114 [ 44.803656][ T55] gfs2_write_inode+0x234/0x34c [ 44.805020][ T55] __writeback_single_inode+0x5e0/0x157c [ 44.806654][ T55] writeback_sb_inodes+0x824/0x1404 [ 44.808164][ T55] __writeback_inodes_wb+0x110/0x394 [ 44.809709][ T55] wb_writeback+0x414/0xfb0 [ 44.811029][ T55] wb_workfn+0xac0/0xd98 [ 44.812288][ T55] process_one_work+0x7f4/0x13a8 [ 44.813646][ T55] worker_thread+0x8c8/0xfbc [ 44.814976][ T55] kthread+0x250/0x2d8 [ 44.816183][ T55] ret_from_fork+0x10/0x20 [ 44.817452][ T55] irq event stamp: 722756 [ 44.818689][ T55] hardirqs last enabled at (722755): [] folio_memcg_lock+0xe8/0x1fc [ 44.821333][ T55] hardirqs last disabled at (722756): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 44.824134][ T55] softirqs last enabled at (721122): [] neigh_managed_work+0x1d0/0x214 [ 44.826909][ T55] softirqs last disabled at (721118): [] neigh_managed_work+0x3c/0x214 [ 44.829682][ T55] ---[ end trace 0000000000000000 ]--- [ 44.834062][ C0] ------------[ cut here ]------------ [ 44.835698][ C0] WARNING: CPU: 0 PID: 15 at include/linux/backing-dev.h:247 __folio_end_writeback+0x7d4/0x9e0 [ 44.838510][ C0] Modules linked in: [ 44.839543][ C0] CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.1.141-syzkaller #0 [ 44.842108][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 44.844936][ C0] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.847104][ C0] pc : __folio_end_writeback+0x7d4/0x9e0 [ 44.848607][ C0] lr : __folio_end_writeback+0x7d4/0x9e0 [ 44.850211][ C0] sp : ffff80001c877960 [ 44.851377][ C0] x29: ffff80001c877980 x28: dfff800000000000 x27: ffff0000c0543ce8 [ 44.853545][ C0] x26: 0000000000000000 x25: 05ffd400000020d2 x24: 1fffff80006954d0 [ 44.855733][ C0] x23: 0000000000000001 x22: ffff0000ccb9ece0 x21: ffff0000ccb9ece8 [ 44.857922][ C0] x20: 0000000000000001 x19: fffffc00034aa680 x18: ffff800011a7bce0 [ 44.860103][ C0] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 44.862280][ C0] x14: ffff0000c09b4218 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 [ 44.864505][ C0] x11: ff008000086fc3c8 x10: 0000000000000000 x9 : ffff8000086fc3c8 [ 44.866697][ C0] x8 : ffff0000c09b3780 x7 : 0000000000000000 x6 : 0000000000000000 [ 44.868928][ C0] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 44.871237][ C0] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 44.873501][ C0] Call trace: [ 44.874406][ C0] __folio_end_writeback+0x7d4/0x9e0 [ 44.875898][ C0] folio_end_writeback+0x12c/0x41c [ 44.877321][ C0] end_page_writeback+0x58/0x74 [ 44.878699][ C0] end_buffer_async_write+0x32c/0x508 [ 44.880142][ C0] end_bio_bh_io_sync+0xb0/0x1e0 [ 44.881475][ C0] bio_endio+0x770/0x7b4 [ 44.882630][ C0] blk_update_request+0x49c/0xbec [ 44.883988][ C0] blk_mq_end_request+0x54/0x88 [ 44.885324][ C0] lo_complete_rq+0x1ec/0x250 [ 44.886634][ C0] blk_done_softirq+0x11c/0x168 [ 44.888003][ C0] handle_softirqs+0x318/0xc6c [ 44.889352][ C0] run_ksoftirqd+0x7c/0x2a0 [ 44.890562][ C0] smpboot_thread_fn+0x4b0/0x964 [ 44.891998][ C0] kthread+0x250/0x2d8 [ 44.893148][ C0] ret_from_fork+0x10/0x20 [ 44.894392][ C0] irq event stamp: 269213 [ 44.895575][ C0] hardirqs last enabled at (269212): [] folio_memcg_lock+0xe8/0x1fc [ 44.898352][ C0] hardirqs last disabled at (269213): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 44.901202][ C0] softirqs last enabled at (269188): [] handle_softirqs+0xaf8/0xc6c [ 44.903841][ C0] softirqs last disabled at (269193): [] run_ksoftirqd+0x7c/0x2a0 [ 44.906494][ C0] ---[ end trace 0000000000000000 ]--- executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program