[[0;32m OK [0m] Started Getty on tty4.
[[0;32m OK [0m] Started Getty on tty3.
[[0;32m OK [0m] Started Getty on tty2.
[[0;32m OK [0m] Started Getty on tty1.
[[0;32m OK [0m] Started Serial Getty on ttyS0.
[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 67.072387][ T6569] loop0: detected capacity change from 0 to 4080
[ 67.085349][ T6569] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
[ 67.120944][ T6569] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048)
[ 67.132162][ T6569] NILFS (loop0): mounting unchecked fs
[ 67.172269][ T6569] NILFS (loop0): recovery complete
[ 67.181156][ T6575] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[ 67.237492][ T6575] ------------[ cut here ]------------
[ 67.243271][ T6575] WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 __folio_mark_dirty+0xa7c/0xe30
[ 67.253554][ T6575] Modules linked in:
[ 67.257441][ T6575] CPU: 0 PID: 6575 Comm: segctord Not tainted 5.15.0-rc6-next-20211022-syzkaller #0
[ 67.266792][ T6575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 67.276861][ T6575] RIP: 0010:__folio_mark_dirty+0xa7c/0xe30
[ 67.282678][ T6575] Code: ff ff ff 48 8d 78 70 e8 b2 77 ae 07 31 ff 89 c6 89 44 24 10 e8 45 a5 d7 ff 8b 44 24 10 85 c0 0f 85 49 fa ff ff e8 14 a3 d7 ff <0f> 0b e9 3d fa ff ff e8 08 a3 d7 ff e8 c3 78 ae 07 31 ff 41 89 c7
[ 67.302302][ T6575] RSP: 0018:ffffc900020078b8 EFLAGS: 00010093
[ 67.308364][ T6575] RAX: 0000000000000000 RBX: ffff88806b870378 RCX: 0000000000000000
[ 67.316345][ T6575] RDX: ffff88801b4fba80 RSI: ffffffff819fea3c RDI: 0000000000000003
[ 67.324315][ T6575] RBP: ffffea0001c92700 R08: 0000000000000000 R09: 0000000000000000
[ 67.332275][ T6575] R10: ffffffff819fea2b R11: 0000000000000000 R12: 0000000000000293
[ 67.340237][ T6575] R13: ffff88806b870138 R14: 0000000000000001 R15: 0000000000000001
[ 67.348203][ T6575] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
[ 67.357130][ T6575] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 67.363710][ T6575] CR2: 000055d7235e1180 CR3: 000000001278d000 CR4: 00000000003506f0
[ 67.371679][ T6575] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 67.379642][ T6575] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 67.387606][ T6575] Call Trace:
[ 67.390876][ T6575]
[ 67.393810][ T6575] mark_buffer_dirty+0x4e6/0x650
[ 67.398757][ T6575] nilfs_btree_propagate+0x4ae/0xea0
[ 67.404056][ T6575] nilfs_bmap_propagate+0x73/0x170
[ 67.409172][ T6575] nilfs_collect_dat_data+0x45/0xd0
[ 67.414369][ T6575] nilfs_segctor_apply_buffers+0x14a/0x470
[ 67.420207][ T6575] ? nilfs_collect_file_bmap+0x80/0x80
[ 67.425669][ T6575] nilfs_segctor_scan_file+0x47a/0x700
[ 67.431129][ T6575] ? nilfs_collect_file_data+0xd0/0xd0
[ 67.436595][ T6575] nilfs_segctor_do_construct+0x14f3/0x6c60
[ 67.442508][ T6575] ? nilfs_segctor_scan_file+0x700/0x700
[ 67.448136][ T6575] ? do_raw_spin_lock+0x120/0x2b0
[ 67.453163][ T6575] ? rwlock_bug.part.0+0x90/0x90
[ 67.458103][ T6575] ? do_raw_spin_unlock+0x171/0x230
[ 67.463302][ T6575] ? _raw_spin_unlock+0x24/0x40
[ 67.468179][ T6575] nilfs_segctor_construct+0x7a7/0xb30
[ 67.473638][ T6575] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 67.479880][ T6575] ? trace_nilfs2_transaction_transition+0x1ac/0x240
[ 67.486567][ T6575] nilfs_segctor_thread+0x3c3/0xf90
[ 67.491771][ T6575] ? nilfs_segctor_construct+0xb30/0xb30
[ 67.497406][ T6575] ? finish_wait+0x270/0x270
[ 67.501998][ T6575] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 67.508238][ T6575] ? __kthread_parkme+0x15f/0x220
[ 67.513264][ T6575] ? nilfs_segctor_construct+0xb30/0xb30
[ 67.518893][ T6575] kthread+0x405/0x4f0
[ 67.522965][ T6575] ? set_kthread_struct+0x130/0x130
[ 67.528160][ T6575] ret_from_fork+0x1f/0x30
[ 67.532591][ T6575]
[ 67.535601][ T6575] Kernel panic - not syncing: panic_on_warn set ...
[ 67.542171][ T6575] CPU: 0 PID: 6575 Comm: segctord Not tainted 5.15.0-rc6-next-20211022-syzkaller #0
[ 67.551530][ T6575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 67.561578][ T6575] Call Trace:
[ 67.564881][ T6575]
[ 67.567816][ T6575] dump_stack_lvl+0xcd/0x134
[ 67.572439][ T6575] panic+0x2b0/0x6dd
[ 67.576341][ T6575] ? __warn_printk+0xf3/0xf3
[ 67.580946][ T6575] ? __warn.cold+0x1a/0x44
[ 67.585372][ T6575] ? __folio_mark_dirty+0xa7c/0xe30
[ 67.590582][ T6575] __warn.cold+0x35/0x44
[ 67.594827][ T6575] ? __folio_mark_dirty+0xa7c/0xe30
[ 67.600052][ T6575] report_bug+0x1bd/0x210
[ 67.604386][ T6575] handle_bug+0x3c/0x60
[ 67.608541][ T6575] exc_invalid_op+0x14/0x40
[ 67.613042][ T6575] asm_exc_invalid_op+0x12/0x20
[ 67.617887][ T6575] RIP: 0010:__folio_mark_dirty+0xa7c/0xe30
[ 67.623707][ T6575] Code: ff ff ff 48 8d 78 70 e8 b2 77 ae 07 31 ff 89 c6 89 44 24 10 e8 45 a5 d7 ff 8b 44 24 10 85 c0 0f 85 49 fa ff ff e8 14 a3 d7 ff <0f> 0b e9 3d fa ff ff e8 08 a3 d7 ff e8 c3 78 ae 07 31 ff 41 89 c7
[ 67.643308][ T6575] RSP: 0018:ffffc900020078b8 EFLAGS: 00010093
[ 67.649374][ T6575] RAX: 0000000000000000 RBX: ffff88806b870378 RCX: 0000000000000000
[ 67.657339][ T6575] RDX: ffff88801b4fba80 RSI: ffffffff819fea3c RDI: 0000000000000003
[ 67.665304][ T6575] RBP: ffffea0001c92700 R08: 0000000000000000 R09: 0000000000000000
[ 67.673268][ T6575] R10: ffffffff819fea2b R11: 0000000000000000 R12: 0000000000000293
[ 67.681231][ T6575] R13: ffff88806b870138 R14: 0000000000000001 R15: 0000000000000001
[ 67.689204][ T6575] ? __folio_mark_dirty+0xa6b/0xe30
[ 67.694416][ T6575] ? __folio_mark_dirty+0xa7c/0xe30
[ 67.699620][ T6575] ? __folio_mark_dirty+0xa7c/0xe30
[ 67.704823][ T6575] mark_buffer_dirty+0x4e6/0x650
[ 67.709769][ T6575] nilfs_btree_propagate+0x4ae/0xea0
[ 67.715062][ T6575] nilfs_bmap_propagate+0x73/0x170
[ 67.720186][ T6575] nilfs_collect_dat_data+0x45/0xd0
[ 67.725384][ T6575] nilfs_segctor_apply_buffers+0x14a/0x470
[ 67.731194][ T6575] ? nilfs_collect_file_bmap+0x80/0x80
[ 67.736650][ T6575] nilfs_segctor_scan_file+0x47a/0x700
[ 67.742109][ T6575] ? nilfs_collect_file_data+0xd0/0xd0
[ 67.747573][ T6575] nilfs_segctor_do_construct+0x14f3/0x6c60
[ 67.753487][ T6575] ? nilfs_segctor_scan_file+0x700/0x700
[ 67.759116][ T6575] ? do_raw_spin_lock+0x120/0x2b0
[ 67.764138][ T6575] ? rwlock_bug.part.0+0x90/0x90
[ 67.769079][ T6575] ? do_raw_spin_unlock+0x171/0x230
[ 67.774275][ T6575] ? _raw_spin_unlock+0x24/0x40
[ 67.779125][ T6575] nilfs_segctor_construct+0x7a7/0xb30
[ 67.784581][ T6575] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 67.790820][ T6575] ? trace_nilfs2_transaction_transition+0x1ac/0x240
[ 67.797510][ T6575] nilfs_segctor_thread+0x3c3/0xf90
[ 67.802718][ T6575] ? nilfs_segctor_construct+0xb30/0xb30
[ 67.808355][ T6575] ? finish_wait+0x270/0x270
[ 67.812940][ T6575] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[ 67.819181][ T6575] ? __kthread_parkme+0x15f/0x220
[ 67.824210][ T6575] ? nilfs_segctor_construct+0xb30/0xb30
[ 67.829845][ T6575] kthread+0x405/0x4f0
[ 67.833917][ T6575] ? set_kthread_struct+0x130/0x130
[ 67.839117][ T6575] ret_from_fork+0x1f/0x30
[ 67.843549][ T6575]
[ 67.846927][ T6575] Kernel Offset: disabled
[ 67.851400][ T6575] Rebooting in 86400 seconds..