IPVS: ftp: loaded support on port[0] = 21
NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8126 at fs/nilfs2/dat.c:186 nilfs_dat_commit_end.cold+0x11/0x18 fs/nilfs2/dat.c:186
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8126 Comm: segctord Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
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:nilfs_dat_commit_end.cold+0x11/0x18 fs/nilfs2/dat.c:186
Code: fa e8 98 4f 69 f9 48 c7 c7 80 df 9e 88 e8 f7 80 fa ff 0f 0b e9 1a 66 b6 fa e8 80 4f 69 f9 48 c7 c7 80 df 9e 88 e8 df 80 fa ff <0f> 0b e9 0e 69 b6 fa e8 68 4f 69 f9 48 c7 c7 80 df 9e 88 e8 c7 80
RSP: 0018:ffff888095277810 EFLAGS: 00010286
RAX: 0000000000000024 RBX: ffff8880ab8aba40 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012a4eef4
RBP: ffff8880952778b8 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808e1b19c0
R13: 000023d50af30002 R14: ffff8880952778d0 R15: 0000000000000003
 nilfs_dat_commit_update+0x26/0x40 fs/nilfs2/dat.c:236
 nilfs_direct_propagate fs/nilfs2/direct.c:277 [inline]
 nilfs_direct_propagate+0x237/0x2f0 fs/nilfs2/direct.c:256
 nilfs_bmap_propagate+0x73/0x170 fs/nilfs2/bmap.c:337
 nilfs_collect_file_data+0x45/0xd0 fs/nilfs2/segment.c:573
 nilfs_segctor_apply_buffers+0x14a/0x490 fs/nilfs2/segment.c:1014
 nilfs_segctor_scan_file+0x3f4/0x6f0 fs/nilfs2/segment.c:1063
 nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1170 [inline]
 nilfs_segctor_collect fs/nilfs2/segment.c:1494 [inline]
 nilfs_segctor_do_construct+0x242b/0x8360 fs/nilfs2/segment.c:2036
 nilfs_segctor_construct+0x764/0xae0 fs/nilfs2/segment.c:2372
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline]
 nilfs_segctor_thread+0x3cb/0xf50 fs/nilfs2/segment.c:2563
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..