[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
[  OK  ] Started Update UTMP about System Runlevel Changes.
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.13' (ECDSA) to the list of known hosts.
syzkaller login: [   38.841124] IPVS: ftp: loaded support on port[0] = 21
executing program
[   38.928696] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
[   38.947531] WARNING: CPU: 1 PID: 8157 at include/linux/backing-dev.h:340 account_page_dirtied+0x8cc/0xbb0
[   38.957359] Kernel panic - not syncing: panic_on_warn set ...
[   38.957359] 
[   38.964704] CPU: 1 PID: 8157 Comm: segctord Not tainted 4.19.211-syzkaller #0
[   38.971953] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
[   38.981293] Call Trace:
[   38.983864]  dump_stack+0x1fc/0x2ef
[   38.987475]  panic+0x26a/0x50e
[   38.990646]  ? __warn_printk+0xf3/0xf3
[   38.994515]  ? account_page_dirtied+0x8cc/0xbb0
[   38.999166]  ? __probe_kernel_read+0x130/0x1b0
[   39.003727]  ? __warn.cold+0x5/0x5a
[   39.007334]  ? __warn+0xe4/0x200
[   39.010682]  ? account_page_dirtied+0x8cc/0xbb0
[   39.015340]  __warn.cold+0x20/0x5a
[   39.018871]  ? account_page_dirtied+0x8cc/0xbb0
[   39.023518]  report_bug+0x262/0x2b0
[   39.027130]  do_error_trap+0x1d7/0x310
[   39.030995]  ? math_error+0x310/0x310
[   39.034778]  ? nilfs_segctor_construct+0x764/0xae0
[   39.039695]  ? nilfs_segctor_thread+0x3cb/0xf50
[   39.044344]  ? mark_held_locks+0xf0/0xf0
[   39.048407]  ? error_entry+0x72/0xd0
[   39.052101]  ? trace_hardirqs_off_caller+0x2c/0x210
[   39.057099]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   39.061922]  invalid_op+0x14/0x20
[   39.065356] RIP: 0010:account_page_dirtied+0x8cc/0xbb0
[   39.070644] Code: 88 01 00 00 be ff ff ff ff 48 8d 78 70 e8 ec e1 ca ff 31 ff 89 c3 89 c6 e8 f1 b3 e2 ff 85 db 0f 85 39 f9 ff ff e8 74 b2 e2 ff <0f> 0b e9 2d f9 ff ff e8 68 b2 e2 ff 4c 89 e6 4c 89 ef e8 9d b3 2d
[   39.089534] RSP: 0018:ffff888090c87868 EFLAGS: 00010093
[   39.094876] RAX: ffff888094d82240 RBX: 0000000000000000 RCX: ffffffff817fd2ef
[   39.102124] RDX: 0000000000000000 RSI: ffffffff817fd2fc RDI: 0000000000000005
[   39.109374] RBP: ffff88808df13b48 R08: 0000000000000000 R09: 0000000000000000
[   39.116624] R10: 0000000000000005 R11: 0000000000000000 R12: ffffea00026dbb00
[   39.123885] R13: ffff88808df139c0 R14: ffff88808df13838 R15: ffffea00026dbb08
[   39.131146]  ? account_page_dirtied+0x8bf/0xbb0
[   39.135794]  ? account_page_dirtied+0x8cc/0xbb0
[   39.140446]  ? account_page_dirtied+0x8cc/0xbb0
[   39.145097]  __set_page_dirty+0x7f/0x3e0
[   39.149138]  ? lock_page_memcg+0xa7/0x220
[   39.153265]  mark_buffer_dirty+0x424/0x5c0
[   39.157482]  nilfs_btree_propagate+0x728/0xd80
[   39.162064]  nilfs_bmap_propagate+0x73/0x170
[   39.166454]  nilfs_collect_dat_data+0x45/0xd0
[   39.170928]  nilfs_segctor_apply_buffers+0x14a/0x490
[   39.176013]  ? nilfs_collect_file_bmap+0x70/0x70
[   39.180751]  nilfs_segctor_scan_file+0x475/0x6f0
[   39.185502]  ? nilfs_collect_file_data+0xd0/0xd0
[   39.190235]  ? check_preemption_disabled+0x41/0x280
[   39.195245]  nilfs_segctor_do_construct+0x1562/0x8360
[   39.200424]  ? nilfs_segctor_scan_file+0x6f0/0x6f0
[   39.205338]  ? lock_downgrade+0x720/0x720
[   39.209484]  ? lock_acquire+0x170/0x3c0
[   39.213435]  ? nilfs_segctor_confirm+0xe1/0x180
[   39.218198]  ? do_raw_spin_unlock+0x171/0x230
[   39.222857]  ? _raw_spin_unlock+0x29/0x40
[   39.226989]  nilfs_segctor_construct+0x764/0xae0
[   39.231728]  nilfs_segctor_thread+0x3cb/0xf50
[   39.236226]  ? nilfs_segctor_construct+0xae0/0xae0
[   39.241138]  ? __kthread_parkme+0x5d/0x1e0
[   39.245355]  ? _raw_spin_unlock_irqrestore+0x79/0xe0
[   39.250438]  ? __kthread_parkme+0x4c/0x1e0
[   39.254655]  ? lockdep_hardirqs_on+0x3a8/0x5c0
[   39.259222]  ? _raw_spin_unlock_irqrestore+0x66/0xe0
[   39.264304]  ? __kthread_parkme+0x133/0x1e0
[   39.268608]  ? nilfs_segctor_construct+0xae0/0xae0
[   39.273519]  kthread+0x33f/0x460
[   39.276883]  ? kthread_park+0x180/0x180
[   39.280840]  ret_from_fork+0x24/0x30
[   39.284889] Kernel Offset: disabled
[   39.288568] Rebooting in 86400 seconds..