Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. executing program [ 37.153615][ T4294] loop0: detected capacity change from 0 to 32768 [ 37.163290][ T4294] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 37.165752][ T4294] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 37.176161][ T4294] gfs2: fsid=syz:syz.0: journal 0 mapped with 3 extents in 0ms [ 37.180039][ T4086] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 37.181974][ T4086] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 37.220195][ T4086] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 38ms [ 37.222777][ T4086] gfs2: fsid=syz:syz.0: jid=0: Done [ 37.224372][ T4294] gfs2: fsid=syz:syz.0: first mount done, others may mount [ 37.315197][ 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 [ 41.293193][ T4298] ------------[ cut here ]------------ [ 41.294857][ T4298] WARNING: CPU: 1 PID: 4298 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8a0/0xce0 [ 41.297629][ T4298] Modules linked in: [ 41.298652][ T4298] CPU: 1 PID: 4298 Comm: gfs2_quotad Not tainted 6.1.141-syzkaller #0 [ 41.300826][ T4298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 41.303615][ T4298] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 41.305697][ T4298] pc : __folio_mark_dirty+0x8a0/0xce0 [ 41.307154][ T4298] lr : __folio_mark_dirty+0x8a0/0xce0 [ 41.308682][ T4298] sp : ffff8000207877c0 [ 41.309804][ T4298] x29: ffff8000207877e0 x28: 1fffff8000695a48 x27: dfff800000000000 [ 41.311966][ T4298] x26: 0000000000000000 x25: ffff0000c0484990 x24: 0000000000000001 [ 41.314092][ T4298] x23: 0000000000000000 x22: fffffc00034ad248 x21: 1fffe00018090932 [ 41.316285][ T4298] x20: ffff0000ddb397c0 x19: fffffc00034ad240 x18: ffff800011a7bce0 [ 41.318456][ T4298] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 41.320678][ T4298] x14: ffff0000d5ab4218 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 [ 41.322871][ T4298] x11: ff008000086fa924 x10: 0000000000000000 x9 : ffff8000086fa924 [ 41.325107][ T4298] x8 : ffff0000d5ab3780 x7 : ffff8000086fa0c8 x6 : 0000000000000000 [ 41.327291][ T4298] x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008a45288 [ 41.329554][ T4298] x2 : ffff0000ce2ee060 x1 : 0000000000000000 x0 : 0000000000000000 [ 41.331674][ T4298] Call trace: [ 41.332566][ T4298] __folio_mark_dirty+0x8a0/0xce0 [ 41.333917][ T4298] mark_buffer_dirty+0x2b8/0x5cc [ 41.335320][ T4298] gfs2_unpin+0x120/0x914 [ 41.336558][ T4298] buf_lo_after_commit+0x140/0x188 [ 41.337952][ T4298] gfs2_log_flush+0xbc8/0x1aa0 [ 41.339262][ T4298] do_sync+0x88c/0xa94 [ 41.340465][ T4298] gfs2_quota_sync+0x2e0/0x528 [ 41.341796][ T4298] gfs2_quotad+0x2d8/0x4fc [ 41.343056][ T4298] kthread+0x250/0x2d8 [ 41.344163][ T4298] ret_from_fork+0x10/0x20 [ 41.345344][ T4298] irq event stamp: 266 [ 41.346443][ T4298] hardirqs last enabled at (265): [] folio_memcg_lock+0xe8/0x1fc [ 41.349010][ T4298] hardirqs last disabled at (266): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 41.351767][ T4298] softirqs last enabled at (0): [] copy_process+0x1244/0x3670 [ 41.354218][ T4298] softirqs last disabled at (0): [<0000000000000000>] 0x0 [ 41.356201][ 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 [ 46.330391][ T11] ------------[ cut here ]------------ [ 46.332115][ T11] WARNING: CPU: 1 PID: 11 at include/linux/backing-dev.h:247 __folio_start_writeback+0x868/0xa68 [ 46.335132][ T11] Modules linked in: [ 46.336182][ T11] CPU: 1 PID: 11 Comm: kworker/u4:1 Tainted: G W 6.1.141-syzkaller #0 [ 46.338850][ T11] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 46.341719][ T11] Workqueue: writeback wb_workfn (flush-7:0) [ 46.343367][ T11] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 46.345491][ T11] pc : __folio_start_writeback+0x868/0xa68 [ 46.347102][ T11] lr : __folio_start_writeback+0x868/0xa68 [ 46.348849][ T11] sp : ffff80001c836bc0 [ 46.349973][ T11] x29: ffff80001c836ca0 x28: dfff800000000000 x27: 0000000000000000 [ 46.352172][ T11] x26: ffff700003906d80 x25: 0000000000000000 x24: ffff0000d4361278 [ 46.354454][ T11] x23: ffff80001c836c20 x22: ffff0000c04847e8 x21: 0000000000000001 [ 46.356637][ T11] x20: fffffc000346ff08 x19: fffffc000346ff00 x18: ffff800011a7bce0 [ 46.358850][ T11] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 46.361109][ T11] x14: ffff0000c09ac218 x13: ffff0000c09ac2b8 x12: 0000000000ff0100 [ 46.363359][ T11] x11: ff008000086fce3c x10: 0000000000000000 x9 : ffff8000086fce3c [ 46.365623][ T11] x8 : ffff0000c09ab780 x7 : 0000000000000000 x6 : 0000000000000000 [ 46.367892][ T11] x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff8000086fc8fc [ 46.370137][ T11] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 46.372429][ T11] Call trace: [ 46.373333][ T11] __folio_start_writeback+0x868/0xa68 [ 46.374877][ T11] set_page_writeback+0x5c/0x7c [ 46.376259][ T11] gfs2_aspace_writepage+0x520/0x6e8 [ 46.377836][ T11] __writepage+0x70/0x18c [ 46.379079][ T11] write_cache_pages+0x73c/0xdd4 [ 46.380466][ T11] do_writepages+0x320/0x4fc [ 46.381758][ T11] filemap_fdatawrite_wbc+0x124/0x174 [ 46.383262][ T11] filemap_fdatawrite+0xc4/0x114 [ 46.384651][ T11] gfs2_write_inode+0x234/0x34c [ 46.386028][ T11] __writeback_single_inode+0x5e0/0x157c [ 46.387610][ T11] writeback_sb_inodes+0x824/0x1404 [ 46.389102][ T11] __writeback_inodes_wb+0x110/0x394 [ 46.390629][ T11] wb_writeback+0x414/0xfb0 [ 46.391844][ T11] wb_workfn+0xac0/0xd98 [ 46.393031][ T11] process_one_work+0x7f4/0x13a8 [ 46.394384][ T11] worker_thread+0x8c8/0xfbc [ 46.395661][ T11] kthread+0x250/0x2d8 [ 46.396784][ T11] ret_from_fork+0x10/0x20 [ 46.398028][ T11] irq event stamp: 551016 [ 46.399283][ T11] hardirqs last enabled at (551015): [] folio_memcg_lock+0xe8/0x1fc [ 46.402013][ T11] hardirqs last disabled at (551016): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 46.404825][ T11] softirqs last enabled at (549724): [] neigh_managed_work+0x1d0/0x214 [ 46.407629][ T11] softirqs last disabled at (549720): [] neigh_managed_work+0x3c/0x214 [ 46.410380][ T11] ---[ end trace 0000000000000000 ]--- [ 46.413553][ C0] ------------[ cut here ]------------ [ 46.415167][ C0] WARNING: CPU: 0 PID: 15 at include/linux/backing-dev.h:247 __folio_end_writeback+0x7d4/0x9e0 [ 46.418093][ C0] Modules linked in: [ 46.419206][ C0] CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.1.141-syzkaller #0 [ 46.421868][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 46.424698][ C0] pstate: 404000c5 (nZcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 46.426919][ C0] pc : __folio_end_writeback+0x7d4/0x9e0 [ 46.428492][ C0] lr : __folio_end_writeback+0x7d4/0x9e0 [ 46.430064][ C0] sp : ffff80001c877960 [ 46.431237][ C0] x29: ffff80001c877980 x28: dfff800000000000 x27: ffff0000c04847e8 [ 46.433388][ C0] x26: 0000000000000000 x25: 05ffd400000020d2 x24: 1fffff800068dfe0 [ 46.435664][ C0] x23: 0000000000000001 x22: ffff0000d4361278 x21: ffff0000d4361280 [ 46.437938][ C0] x20: 0000000000000001 x19: fffffc000346ff00 x18: ffff800011a7bce0 [ 46.440146][ C0] x17: ffff8000181a1000 x16: ffff8000082d0750 x15: ffff800017c81fc0 [ 46.442359][ C0] x14: ffff0000c09b4218 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 [ 46.444631][ C0] x11: ff008000086fc3c8 x10: 0000000000000000 x9 : ffff8000086fc3c8 [ 46.446802][ C0] x8 : ffff0000c09b3780 x7 : 0000000000000000 x6 : 0000000000000000 [ 46.449105][ C0] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 46.451319][ C0] x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 [ 46.453557][ C0] Call trace: [ 46.454454][ C0] __folio_end_writeback+0x7d4/0x9e0 [ 46.455923][ C0] folio_end_writeback+0x12c/0x41c [ 46.457318][ C0] end_page_writeback+0x58/0x74 [ 46.458667][ C0] end_buffer_async_write+0x32c/0x508 [ 46.460147][ C0] end_bio_bh_io_sync+0xb0/0x1e0 [ 46.461525][ C0] bio_endio+0x770/0x7b4 [ 46.462690][ C0] blk_update_request+0x49c/0xbec [ 46.464087][ C0] blk_mq_end_request+0x54/0x88 [ 46.465419][ C0] lo_complete_rq+0x1ec/0x250 [ 46.466703][ C0] blk_done_softirq+0x11c/0x168 [ 46.468054][ C0] handle_softirqs+0x318/0xc6c [ 46.469389][ C0] run_ksoftirqd+0x7c/0x2a0 [ 46.470695][ C0] smpboot_thread_fn+0x4b0/0x964 [ 46.472105][ C0] kthread+0x250/0x2d8 [ 46.473262][ C0] ret_from_fork+0x10/0x20 [ 46.474556][ C0] irq event stamp: 320055 [ 46.475716][ C0] hardirqs last enabled at (320054): [] folio_memcg_lock+0xe8/0x1fc [ 46.478421][ C0] hardirqs last disabled at (320055): [] _raw_spin_lock_irqsave+0xa4/0xb4 [ 46.481230][ C0] softirqs last enabled at (320030): [] handle_softirqs+0xaf8/0xc6c [ 46.483915][ C0] softirqs last disabled at (320035): [] run_ksoftirqd+0x7c/0x2a0 [ 46.486501][ 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 executing program