[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.201' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 150.169205][ T37] audit: type=1400 audit(1624169825.154:8): avc: denied { execmem } for pid=8425 comm="syz-executor803" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 150.201596][ T8427] loop0: detected capacity change from 0 to 512 executing program [ 150.215668][ T8427] EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended [ 150.229426][ T8427] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none. 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 180.497098][ T97] ------------[ cut here ]------------ [ 180.502809][ T97] Trying to write to read-only block-device loop0 (partno 0) [ 180.513817][ T97] WARNING: CPU: 1 PID: 97 at block/blk-core.c:704 submit_bio_checks+0x165c/0x1aa0 [ 180.523485][ T97] Modules linked in: [ 180.528446][ T97] CPU: 1 PID: 97 Comm: kworker/u4:2 Not tainted 5.13.0-rc6-syzkaller #0 executing program [ 180.538119][ T97] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 180.553016][ T97] Workqueue: writeback wb_workfn (flush-7:0) [ 180.561733][ T97] RIP: 0010:submit_bio_checks+0x165c/0x1aa0 [ 180.569593][ T97] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 76 42 fe ff 48 c7 c7 60 52 c0 89 48 89 c6 44 89 e2 e8 49 62 1c 05 <0f> 0b e9 36 f3 ff ff e8 18 e9 ba fd 0f 0b e9 bf f1 ff ff e8 0c e9 [ 180.591689][ T97] RSP: 0018:ffffc900011870a8 EFLAGS: 00010286 executing program [ 180.598946][ T97] RAX: 0000000000000000 RBX: ffff88801f029120 RCX: 0000000000000000 [ 180.610070][ T97] RDX: ffff8880157ac200 RSI: ffffffff815c1755 RDI: fffff52000230e07 [ 180.620430][ T97] RBP: ffff888021885e00 R08: 0000000000000000 R09: 0000000000000000 [ 180.630720][ T97] R10: ffffffff815bb58e R11: 0000000000000000 R12: 0000000000000000 [ 180.641072][ T97] R13: ffff888021885e10 R14: ffff88801b5a9040 R15: ffff88801f029624 executing program [ 180.649905][ T97] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 180.661642][ T97] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 180.670687][ T97] CR2: 00007fc8026d7718 CR3: 00000000305d1000 CR4: 00000000001506e0 [ 180.681084][ T97] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 180.689645][ T97] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 executing program [ 180.699086][ T97] Call Trace: [ 180.702467][ T97] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 180.710613][ T97] ? __lock_acquire+0xb3a/0x5230 [ 180.715575][ T97] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 180.724019][ T97] submit_bio_noacct+0x81/0xf20 [ 180.729346][ T97] ? blk_queue_enter+0xb50/0xb50 [ 180.734306][ T97] ? bio_associate_blkg_from_css+0x563/0xf60 [ 180.740834][ T97] ? lock_downgrade+0x6e0/0x6e0 [ 180.745828][ T97] submit_bio+0x263/0x5e0 executing program [ 180.750911][ T97] ? submit_bio_noacct+0xf20/0xf20 [ 180.756817][ T97] ? bio_add_page+0x186/0x1f0 [ 180.761556][ T97] ? __bio_try_merge_page+0x350/0x350 [ 180.768338][ T97] submit_bh_wbc+0x5eb/0x7f0 [ 180.775300][ T97] __block_write_full_page+0x86c/0x1340 [ 180.782942][ T97] ? bdev_evict_inode+0x460/0x460 [ 180.788833][ T97] block_write_full_page+0x14d/0x190 [ 180.794162][ T97] ? bdev_evict_inode+0x460/0x460 executing program [ 180.799883][ T97] __writepage+0x60/0x180 [ 180.804308][ T97] write_cache_pages+0x759/0x11a0 [ 180.811898][ T97] ? tag_pages_for_writeback+0x450/0x450 [ 180.818507][ T97] ? clear_page_dirty_for_io+0xa10/0xa10 [ 180.824167][ T97] ? mark_lock+0xef/0x17b0 [ 180.831325][ T97] ? __lock_acquire+0x16a7/0x5230 [ 180.838389][ T97] ? blkdev_readahead+0x20/0x20 [ 180.845015][ T97] generic_writepages+0xe2/0x150 executing program [ 180.850810][ T97] ? write_cache_pages+0x11a0/0x11a0 [ 180.856673][ T97] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 180.864982][ T97] do_writepages+0xec/0x290 [ 180.870040][ T97] ? writeback_set_ratelimit+0x150/0x150 [ 180.875701][ T97] ? lock_downgrade+0x6e0/0x6e0 [ 180.884548][ T97] ? writeback_sb_inodes+0x3a6/0xef0 [ 180.892323][ T97] __writeback_single_inode+0x126/0xfd0 executing program executing program [ 180.898749][ T97] ? wbc_attach_and_unlock_inode+0x117/0x9e0 [ 180.907603][ T97] writeback_sb_inodes+0x53d/0xef0 [ 180.912746][ T97] ? __writeback_single_inode+0xfd0/0xfd0 [ 180.922684][ T97] __writeback_inodes_wb+0xc6/0x280 [ 180.930374][ T97] wb_writeback+0x814/0xc40 [ 180.935491][ T97] ? __writeback_inodes_wb+0x280/0x280 [ 180.945108][ T97] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 180.953232][ T97] ? cpumask_next+0xa4/0xf0 [ 180.958816][ T97] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 180.964605][ T97] ? get_nr_dirty_inodes+0x16f/0x210 [ 180.971082][ T97] wb_workfn+0x891/0x12d0 [ 180.975439][ T97] ? inode_wait_for_writeback+0x30/0x30 [ 180.981806][ T97] ? lock_release+0x720/0x720 [ 180.988558][ T97] process_one_work+0x98d/0x1600 executing program executing program [ 180.998524][ T97] ? pwq_dec_nr_in_flight+0x320/0x320 [ 181.006071][ T97] ? rwlock_bug.part.0+0x90/0x90 [ 181.012808][ T97] ? _raw_spin_lock_irq+0x41/0x50 [ 181.019054][ T97] worker_thread+0x64c/0x1120 [ 181.023927][ T97] ? process_one_work+0x1600/0x1600 [ 181.031764][ T97] kthread+0x3b1/0x4a0 [ 181.040933][ T97] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 181.047973][ T97] ret_from_fork+0x1f/0x30 [ 181.053716][ T97] Kernel panic - not syncing: panic_on_warn set ... [ 181.060308][ T97] CPU: 1 PID: 97 Comm: kworker/u4:2 Not tainted 5.13.0-rc6-syzkaller #0 [ 181.068653][ T97] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 181.078728][ T97] Workqueue: writeback wb_workfn (flush-7:0) [ 181.084752][ T97] Call Trace: [ 181.088035][ T97] dump_stack+0x141/0x1d7 [ 181.092379][ T97] panic+0x306/0x73d [ 181.096296][ T97] ? __warn_printk+0xf3/0xf3 [ 181.100922][ T97] ? __warn.cold+0x1a/0x44 [ 181.105355][ T97] ? submit_bio_checks+0x165c/0x1aa0 [ 181.110716][ T97] __warn.cold+0x35/0x44 [ 181.114967][ T97] ? wake_up_klogd.part.0+0x8e/0xd0 [ 181.120176][ T97] ? submit_bio_checks+0x165c/0x1aa0 [ 181.125476][ T97] report_bug+0x1bd/0x210 [ 181.129832][ T97] handle_bug+0x3c/0x60 [ 181.134010][ T97] exc_invalid_op+0x14/0x40 [ 181.138540][ T97] asm_exc_invalid_op+0x12/0x20 [ 181.143397][ T97] RIP: 0010:submit_bio_checks+0x165c/0x1aa0 [ 181.149297][ T97] Code: 00 00 45 0f b6 a4 24 e0 05 00 00 48 8d 74 24 60 48 89 ef e8 76 42 fe ff 48 c7 c7 60 52 c0 89 48 89 c6 44 89 e2 e8 49 62 1c 05 <0f> 0b e9 36 f3 ff ff e8 18 e9 ba fd 0f 0b e9 bf f1 ff ff e8 0c e9 [ 181.168902][ T97] RSP: 0018:ffffc900011870a8 EFLAGS: 00010286 [ 181.174970][ T97] RAX: 0000000000000000 RBX: ffff88801f029120 RCX: 0000000000000000 [ 181.182945][ T97] RDX: ffff8880157ac200 RSI: ffffffff815c1755 RDI: fffff52000230e07 [ 181.190933][ T97] RBP: ffff888021885e00 R08: 0000000000000000 R09: 0000000000000000 [ 181.198942][ T97] R10: ffffffff815bb58e R11: 0000000000000000 R12: 0000000000000000 [ 181.206917][ T97] R13: ffff888021885e10 R14: ffff88801b5a9040 R15: ffff88801f029624 [ 181.214888][ T97] ? wake_up_klogd.part.0+0x8e/0xd0 [ 181.220141][ T97] ? vprintk+0x95/0x260 [ 181.224303][ T97] ? submit_bio_checks+0x165c/0x1aa0 [ 181.229588][ T97] ? trace_event_raw_event_block_rq_requeue+0x510/0x510 [ 181.236584][ T97] ? __lock_acquire+0xb3a/0x5230 [ 181.241554][ T97] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 181.247577][ T97] submit_bio_noacct+0x81/0xf20 [ 181.252468][ T97] ? blk_queue_enter+0xb50/0xb50 [ 181.257438][ T97] ? bio_associate_blkg_from_css+0x563/0xf60 [ 181.263442][ T97] ? lock_downgrade+0x6e0/0x6e0 [ 181.268308][ T97] submit_bio+0x263/0x5e0 [ 181.272711][ T97] ? submit_bio_noacct+0xf20/0xf20 [ 181.277886][ T97] ? bio_add_page+0x186/0x1f0 [ 181.282566][ T97] ? __bio_try_merge_page+0x350/0x350 [ 181.287934][ T97] submit_bh_wbc+0x5eb/0x7f0 [ 181.292572][ T97] __block_write_full_page+0x86c/0x1340 [ 181.298122][ T97] ? bdev_evict_inode+0x460/0x460 [ 181.303142][ T97] block_write_full_page+0x14d/0x190 [ 181.308440][ T97] ? bdev_evict_inode+0x460/0x460 [ 181.313479][ T97] __writepage+0x60/0x180 [ 181.317857][ T97] write_cache_pages+0x759/0x11a0 [ 181.322938][ T97] ? tag_pages_for_writeback+0x450/0x450 [ 181.328586][ T97] ? clear_page_dirty_for_io+0xa10/0xa10 [ 181.334234][ T97] ? mark_lock+0xef/0x17b0 [ 181.338656][ T97] ? __lock_acquire+0x16a7/0x5230 [ 181.343686][ T97] ? blkdev_readahead+0x20/0x20 [ 181.348533][ T97] generic_writepages+0xe2/0x150 [ 181.353474][ T97] ? write_cache_pages+0x11a0/0x11a0 [ 181.358772][ T97] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 181.364755][ T97] do_writepages+0xec/0x290 [ 181.369257][ T97] ? writeback_set_ratelimit+0x150/0x150 [ 181.374895][ T97] ? lock_downgrade+0x6e0/0x6e0 [ 181.379753][ T97] ? writeback_sb_inodes+0x3a6/0xef0 [ 181.385228][ T97] __writeback_single_inode+0x126/0xfd0 [ 181.390787][ T97] ? wbc_attach_and_unlock_inode+0x117/0x9e0 [ 181.396777][ T97] writeback_sb_inodes+0x53d/0xef0 [ 181.401894][ T97] ? __writeback_single_inode+0xfd0/0xfd0 [ 181.407616][ T97] __writeback_inodes_wb+0xc6/0x280 [ 181.412816][ T97] wb_writeback+0x814/0xc40 [ 181.417322][ T97] ? __writeback_inodes_wb+0x280/0x280 [ 181.422789][ T97] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 181.429035][ T97] ? cpumask_next+0xa4/0xf0 [ 181.433557][ T97] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 181.439454][ T97] ? get_nr_dirty_inodes+0x16f/0x210 [ 181.444757][ T97] wb_workfn+0x891/0x12d0 [ 181.449091][ T97] ? inode_wait_for_writeback+0x30/0x30 [ 181.454657][ T97] ? lock_release+0x720/0x720 [ 181.459354][ T97] process_one_work+0x98d/0x1600 [ 181.464300][ T97] ? pwq_dec_nr_in_flight+0x320/0x320 [ 181.469678][ T97] ? rwlock_bug.part.0+0x90/0x90 [ 181.474624][ T97] ? _raw_spin_lock_irq+0x41/0x50 [ 181.479684][ T97] worker_thread+0x64c/0x1120 [ 181.484371][ T97] ? process_one_work+0x1600/0x1600 [ 181.489569][ T97] kthread+0x3b1/0x4a0 [ 181.493636][ T97] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 181.499536][ T97] ret_from_fork+0x1f/0x30 [ 181.505009][ T97] Kernel Offset: disabled [ 181.509437][ T97] Rebooting in 86400 seconds..