NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024
NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024
NILFS (loop1): discard dirty block: blocknr=18446744073709551615, size=1024
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7985 at fs/buffer.c:1149 mark_buffer_dirty+0x347/0x480 fs/buffer.c:1149
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7985 Comm: syz-executor171 Not tainted 4.14.296-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x44 kernel/panic.c:547
 report_bug+0x208/0x250 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:mark_buffer_dirty+0x347/0x480 fs/buffer.c:1149
RSP: 0018:ffff8880968cf9b8 EFLAGS: 00010297
RAX: ffff8880b2f16580 RBX: ffff88808b19d930 RCX: 000000000000139d
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808b19d930
RBP: ffff88808a4ce8d8 R08: ffffffff8b9ac7e8 R09: 0000000000040593
R10: ffff8880b2f16e58 R11: ffff8880b2f16580 R12: dffffc0000000000
R13: ffff88809b2f6678 R14: ffff88808b19d930 R15: ffff88808a4ce8e8
 nilfs_segctor_collect_dirty_files fs/nilfs2/segment.c:1979 [inline]
 nilfs_segctor_do_construct+0x2af/0x79c0 fs/nilfs2/segment.c:2038
 nilfs_segctor_construct+0x6db/0x8e0 fs/nilfs2/segment.c:2394
 nilfs_segctor_write_out fs/nilfs2/segment.c:2717 [inline]
 nilfs_segctor_destroy fs/nilfs2/segment.c:2750 [inline]
 nilfs_detach_log_writer+0x398/0x980 fs/nilfs2/segment.c:2829
 nilfs_put_super+0x3f/0x190 fs/nilfs2/super.c:480
 generic_shutdown_super+0x144/0x370 fs/super.c:446
 kill_block_super+0x95/0xe0 fs/super.c:1161
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 deactivate_super+0x7f/0xa0 fs/super.c:350
 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f21a2cd0597
RSP: 002b:00007ffc112bdd28 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f21a2cd0597
RDX: 00007ffc112bddeb RSI: 000000000000000a RDI: 00007ffc112bdde0
RBP: 00007ffc112bdde0 R08: 00000000ffffffff R09: 00007ffc112bdbc0
R10: 00005555556e2683 R11: 0000000000000206 R12: 00007ffc112beea0
R13: 00005555556e25f0 R14: 00007ffc112bdd50 R15: 00007ffc112beec0
Kernel Offset: disabled
Rebooting in 86400 seconds..