NILFS (loop4): discard dirty block: blocknr=18446744073709551615, size=1024
NILFS (loop4): discard dirty block: blocknr=0, size=1024
NILFS (loop4): discard dirty block: blocknr=0, size=1024
NILFS (loop4): discard dirty block: blocknr=0, size=1024
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7979 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: 7979 Comm: syz-executor384 Not tainted 4.14.299-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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:967
Kernel Offset: disabled
Rebooting in 86400 seconds..