NILFS (loop0): discard dirty block: blocknr=18446744073709551615, size=1024
NILFS (loop0): discard dirty block: blocknr=18446744073709551615, size=1024
NILFS (loop0): discard dirty block: blocknr=46, size=1024
NILFS (loop0): discard dirty block: blocknr=18446744073709551615, size=1024
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7982 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: 7982 Comm: syz-executor100 Not tainted 4.14.301-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
RIP: 0010:mark_buffer_dirty+0x347/0x480 fs/buffer.c:1149
RSP: 0018:ffff88809184f8a8 EFLAGS: 00010297
RAX: ffff888095592000 RBX: ffff88808df73d20 RCX: 0000000000005c16
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808df73d20
RBP: ffff88808df74220 R08: ffffffff8b9d1bb0 R09: 000000000004058c
R10: ffff8880955928d8 R11: ffff888095592000 R12: dffffc0000000000
R13: ffff88809727b8b8 R14: ffff88808df73d20 R15: ffff88808df74230
 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:2830
 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
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xa44/0x2850 kernel/exit.c:868
 do_group_exit+0x100/0x2e0 kernel/exit.c:965
 SYSC_exit_group kernel/exit.c:976 [inline]
 SyS_exit_group+0x19/0x20 kernel/exit.c:974
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fd4c79ad9c9
RSP: 002b:00007fff2fc24998 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fd4c7a23330 RCX: 00007fd4c79ad9c9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fd4c7a1de40
R10: 0000000000000a1a R11: 0000000000000246 R12: 00007fd4c7a23330
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
Kernel Offset: disabled
Rebooting in 86400 seconds..