NILFS (loop2): discard dirty block: blocknr=18446744073709551615, size=1024
WARNING: CPU: 0 PID: 8125 at fs/buffer.c:1087 mark_buffer_dirty+0x464/0x5c0 fs/buffer.c:1087
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 8125 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:mark_buffer_dirty+0x464/0x5c0 fs/buffer.c:1087
Code: c1 ea 03 80 3c 02 00 0f 85 6c 01 00 00 48 8b 3b be 04 00 00 00 e8 3c 7b fd ff 5b 5d 41 5c 41 5d e9 c1 34 b2 ff e8 bc 34 b2 ff <0f> 0b e9 d6 fb ff ff e8 b0 34 b2 ff 0f 0b e9 fa fb ff ff e8 a4 34
RSP: 0018:ffff88809e25f908 EFLAGS: 00010293
RAX: ffff88809e2103c0 RBX: ffff88804ff8d5e8 RCX: ffffffff81b04c88
RDX: 0000000000000000 RSI: ffffffff81b050b4 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88809df99190
R13: ffff88804ff8d5e8 R14: ffff88804ffcf358 R15: dffffc0000000000
 nilfs_segctor_collect_dirty_files fs/nilfs2/segment.c:1957 [inline]
 nilfs_segctor_do_construct+0x2f3/0x8360 fs/nilfs2/segment.c:2016
 nilfs_segctor_construct+0x764/0xae0 fs/nilfs2/segment.c:2372
 nilfs_segctor_write_out fs/nilfs2/segment.c:2694 [inline]
 nilfs_segctor_destroy fs/nilfs2/segment.c:2727 [inline]
 nilfs_detach_log_writer+0x3b8/0x9f0 fs/nilfs2/segment.c:2807
 nilfs_put_super+0x3f/0x1a0 fs/nilfs2/super.c:469
 generic_shutdown_super+0x144/0x370 fs/super.c:456
 kill_block_super+0x97/0xf0 fs/super.c:1185
 deactivate_locked_super+0x94/0x160 fs/super.c:329
 deactivate_super+0x174/0x1a0 fs/super.c:360
 cleanup_mnt+0x1a8/0x290 fs/namespace.c:1098
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7feccce5fa17
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd4fb62788 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007feccce5fa17
RDX: 00007ffd4fb6285a RSI: 000000000000000a RDI: 00007ffd4fb62850
RBP: 00007ffd4fb62850 R08: 00000000ffffffff R09: 00007ffd4fb62620
R10: 0000555556227903 R11: 0000000000000246 R12: 00007feccceb8826
R13: 00007ffd4fb63910 R14: 0000555556227810 R15: 00007ffd4fb63950
Kernel Offset: disabled
Rebooting in 86400 seconds..