Warning: Permanently added '10.128.1.105' (ED25519) to the list of known hosts. executing program [ 35.186695][ T4294] loop0: detected capacity change from 0 to 32768 [ 35.196427][ T4294] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 35.198756][ T4294] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 35.212069][ T4294] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 35.215854][ T4038] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 35.217737][ T4038] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 35.246969][ T4038] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 29ms [ 35.249561][ T4038] gfs2: fsid=syz:syz.0: jid=0: Done [ 35.251230][ T4294] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 35.339391][ T4294] 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 [ 39.321792][ T4298] ------------[ cut here ]------------ [ 39.323358][ T4298] WARNING: CPU: 1 PID: 4298 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xce0 [ 39.326018][ T4298] Modules linked in: [ 39.327013][ T4298] CPU: 1 PID: 4298 Comm: gfs2_quotad Not tainted 6.1.141-syzkaller #0 [ 39.329144][ T4298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 39.331821][ T4298] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 39.333874][ T4298] pc : __folio_mark_dirty+0x8a0/0xce0 [ 39.335257][ T4298] lr : __folio_mark_dirty+0x8a0/0xce0 [ 39.336684][ T4298] sp : ffff8000207777c0 [ 39.337786][ T4298] x29: ffff8000207777e0 x28: 1fffff80006a76a0 x27: dfff800000000000 [ 39.339940][ T4298] x26: 0000000000000000 x25: ffff0000c0490790 x24: 0000000000000001 [ 39.342077][ T4298] x23: 0000000000000000 x22: fffffc000353b508 x21: 1fffe000180920f2 [ 39.344213][ T4298] x20: ffff0000c9016250 x19: fffffc000353b500 x18: ffff800011a7bce0 [ 39.346317][ T4298] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 39.348431][ T4298] x14: ffff0000d8a14218 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 [ 39.350566][ T4298] x11: ff008000086fa924 x10: 0000000000000000 x9 : ffff8000086fa924 [ 39.352698][ T4298] x8 : ffff0000d8a13780 x7 : ffff8000086fa0c8 x6 : 0000000000000000 [ 39.354769][ T4298] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008a45288 [ 39.356877][ T4298] x2 : ffff0000ce71a060 x1 : 0000000000000000 x0 : 0000000000000000 [ 39.359038][ T4298] Call trace: [ 39.359899][ T4298] __folio_mark_dirty+0x8a0/0xce0 [ 39.361350][ T4298] mark_buffer_dirty+0x2b8/0x5cc [ 39.362656][ T4298] gfs2_unpin+0x120/0x914 [ 39.363798][ T4298] buf_lo_after_commit+0x140/0x188 [ 39.365166][ T4298] gfs2_log_flush+0xbc8/0x1aa0 [ 39.366477][ T4298] do_sync+0x88c/0xa94 [ 39.367551][ T4298] gfs2_quota_sync+0x2e0/0x528 [ 39.368824][ T4298] gfs2_quotad+0x2d8/0x4fc [ 39.370014][ T4298] kthread+0x250/0x2d8 [ 39.371161][ T4298] ret_from_fork+0x10/0x20 [ 39.372365][ T4298] irq event stamp: 1028 [ 39.373479][ T4298] hardirqs last enabled at (1027): [] folio_memcg_lock+0xe8/0x1fc [ 39.376059][ T4298] hardirqs last disabled at (1028): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 39.378789][ T4298] softirqs last enabled at (362): [] handle_softirqs+0xaf8/0xc6c [ 39.381366][ T4298] softirqs last disabled at (47): [] __do_softirq+0x14/0x20 [ 39.383754][ T4298] ---[ 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 executing program [ 44.358949][ T33] ------------[ cut here ]------------ [ 44.360644][ T33] WARNING: CPU: 1 PID: 33 at include/linux/backing-dev.h:247 __folio_start_writeback+0x868/0xa68 [ 44.363416][ T33] Modules linked in: [ 44.364484][ T33] CPU: 1 PID: 33 Comm: kworker/u4:2 Tainted: G W 6.1.141-syzkaller #0 [ 44.367066][ T33] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 44.369743][ T33] Workqueue: writeback wb_workfn (flush-7:0) [ 44.371340][ T33] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.373464][ T33] pc : __folio_start_writeback+0x868/0xa68 [ 44.375013][ T33] lr : __folio_start_writeback+0x868/0xa68 [ 44.376624][ T33] sp : ffff80001ccd6bc0 [ 44.377729][ T33] x29: ffff80001ccd6ca0 x28: dfff800000000000 x27: 0000000000000000 [ 44.379895][ T33] x26: ffff70000399ad80 x25: 0000000000000000 x24: ffff0000c9016ce0 [ 44.382023][ T33] x23: ffff80001ccd6c20 x22: ffff0000c04905e8 x21: 0000000000000001 [ 44.384172][ T33] x20: fffffc00037e80c8 x19: fffffc00037e80c0 x18: ffff800011a7bce0 [ 44.386348][ T33] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 44.388505][ T33] x14: ffff0000c2e5c218 x13: ffff0000c2e5c2b8 x12: 0000000000ff0100 [ 44.390657][ T33] x11: ff008000086fce3c x10: 0000000000000000 x9 : ffff8000086fce3c [ 44.392836][ T33] x8 : ffff0000c2e5b780 x7 : 0000000000000000 x6 : 0000000000000000 [ 44.394975][ T33] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086fc8fc [ 44.397090][ T33] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 44.399311][ T33] Call trace: [ 44.400165][ T33] __folio_start_writeback+0x868/0xa68 [ 44.401711][ T33] set_page_writeback+0x5c/0x7c [ 44.403025][ T33] gfs2_aspace_writepage+0x520/0x6e8 [ 44.404395][ T33] __writepage+0x70/0x18c [ 44.405551][ T33] write_cache_pages+0x73c/0xdd4 [ 44.406840][ T33] do_writepages+0x320/0x4fc [ 44.408024][ T33] filemap_fdatawrite_wbc+0x124/0x174 [ 44.409444][ T33] filemap_fdatawrite+0xc4/0x114 [ 44.410788][ T33] gfs2_write_inode+0x234/0x34c [ 44.412089][ T33] __writeback_single_inode+0x5e0/0x157c [ 44.413630][ T33] writeback_sb_inodes+0x824/0x1404 [ 44.415012][ T33] __writeback_inodes_wb+0x110/0x394 [ 44.416401][ T33] wb_writeback+0x414/0xfb0 [ 44.417640][ T33] wb_workfn+0xac0/0xd98 [ 44.418803][ T33] process_one_work+0x7f4/0x13a8 [ 44.420133][ T33] worker_thread+0x8c8/0xfbc [ 44.421361][ T33] kthread+0x250/0x2d8 [ 44.422448][ T33] ret_from_fork+0x10/0x20 [ 44.423636][ T33] irq event stamp: 28216 [ 44.424883][ T33] hardirqs last enabled at (28215): [] folio_memcg_lock+0xe8/0x1fc [ 44.427476][ T33] hardirqs last disabled at (28216): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 44.430154][ T33] softirqs last enabled at (27316): [] neigh_managed_work+0x1d0/0x214 [ 44.432773][ T33] softirqs last disabled at (27312): [] neigh_managed_work+0x3c/0x214 [ 44.435467][ T33] ---[ end trace 0000000000000000 ]--- [ 44.438804][ C1] ------------[ cut here ]------------ [ 44.440403][ C1] WARNING: CPU: 1 PID: 21 at include/linux/backing-dev.h:247 __folio_end_writeback+0x7d4/0x9e0 [ 44.443126][ C1] Modules linked in: [ 44.444152][ C1] CPU: 1 PID: 21 Comm: ksoftirqd/1 Tainted: G W 6.1.141-syzkaller #0 [ 44.446595][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 44.449161][ C1] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 44.451228][ C1] pc : __folio_end_writeback+0x7d4/0x9e0 [ 44.452714][ C1] lr : __folio_end_writeback+0x7d4/0x9e0 [ 44.454263][ C1] sp : ffff80001c8e7960 [ 44.455332][ C1] x29: ffff80001c8e7980 x28: dfff800000000000 x27: ffff0000c04905e8 [ 44.457450][ C1] x26: 0000000000000000 x25: 05ffd400000020d2 x24: 1fffff80006fd018 [ 44.459597][ C1] x23: 0000000000000001 x22: ffff0000c9016ce0 x21: ffff0000c9016ce8 [ 44.461729][ C1] x20: 0000000000000001 x19: fffffc00037e80c0 x18: ffff800011a7bce0 [ 44.463812][ C1] x17: 1fffe00033ee7176 x16: ffff8000082d0750 x15: 0000000000000000 [ 44.465920][ C1] x14: 0000000000000002 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 [ 44.468040][ C1] x11: ff008000086fc3c8 x10: 0000000000000000 x9 : ffff8000086fc3c8 [ 44.470150][ C1] x8 : ffff0000c0a51bc0 x7 : 0000000000000000 x6 : 0000000000000000 [ 44.472246][ C1] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 44.474348][ C1] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 44.476430][ C1] Call trace: [ 44.477271][ C1] __folio_end_writeback+0x7d4/0x9e0 [ 44.478687][ C1] folio_end_writeback+0x12c/0x41c [ 44.479997][ C1] end_page_writeback+0x58/0x74 [ 44.481296][ C1] end_buffer_async_write+0x32c/0x508 [ 44.482684][ C1] end_bio_bh_io_sync+0xb0/0x1e0 [ 44.483967][ C1] bio_endio+0x770/0x7b4 [ 44.485070][ C1] blk_update_request+0x49c/0xbec [ 44.486435][ C1] blk_mq_end_request+0x54/0x88 [ 44.487725][ C1] lo_complete_rq+0x1ec/0x250 [ 44.488947][ C1] blk_done_softirq+0x11c/0x168 [ 44.490257][ C1] handle_softirqs+0x318/0xc6c [ 44.491533][ C1] run_ksoftirqd+0x7c/0x2a0 [ 44.492679][ C1] smpboot_thread_fn+0x4b0/0x964 [ 44.493960][ C1] kthread+0x250/0x2d8 [ 44.495041][ C1] ret_from_fork+0x10/0x20 [ 44.496188][ C1] irq event stamp: 289765 [ 44.497326][ C1] hardirqs last enabled at (289764): [] folio_memcg_lock+0xe8/0x1fc [ 44.499865][ C1] hardirqs last disabled at (289765): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 44.502516][ C1] softirqs last enabled at (289740): [] handle_softirqs+0xaf8/0xc6c [ 44.505052][ C1] softirqs last disabled at (289745): [] run_ksoftirqd+0x7c/0x2a0 [ 44.507522][ C1] ---[ 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