NILFS (loop1): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10291 at fs/nilfs2/dat.c:167 nilfs_dat_prepare_end+0x1e8/0x2e0 fs/nilfs2/dat.c:167
Kernel panic - not syncing: kernel: panic_on_warn set ...

CPU: 1 PID: 10291 Comm: syz-executor.1 Not tainted 4.14.307-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 panic+0x21d/0x451 kernel/panic.c:247
 check_panic_on_warn.cold+0x19/0x35 kernel/panic.c:171
 __warn+0xdf/0x1e0 kernel/panic.c:603
 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:nilfs_dat_prepare_end+0x1e8/0x2e0 fs/nilfs2/dat.c:167
RSP: 0018:ffff88804371f618 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffff8880ac73e8d8 RCX: ffffc900070c4000
RDX: 00000000000079dc RSI: ffffffff826e0b88 RDI: ffff88803a56e648
RBP: ffff8880ac73e8f0 R08: 0000000000000000 R09: 0000000000000005
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffe
R13: ffff88803a5576f8 R14: 000008000000000e R15: ffff88803a5576f8
 nilfs_bmap_prepare_end_ptr fs/nilfs2/bmap.h:220 [inline]
 nilfs_btree_prepare_delete fs/nilfs2/btree.c:1461 [inline]
 nilfs_btree_delete+0x247/0xf30 fs/nilfs2/btree.c:1609
 nilfs_bmap_do_delete+0x1d8/0x280 fs/nilfs2/bmap.c:185
 nilfs_bmap_do_truncate fs/nilfs2/bmap.c:273 [inline]
 nilfs_bmap_truncate+0xe9/0x280 fs/nilfs2/bmap.c:306
 nilfs_truncate_bmap+0x101/0x2c0 fs/nilfs2/inode.c:867
 nilfs_truncate+0x213/0x450 fs/nilfs2/inode.c:898
 nilfs_setattr+0x1d8/0x220 fs/nilfs2/inode.c:993
 notify_change+0x56b/0xd10 fs/attr.c:315
 do_truncate+0xff/0x1a0 fs/open.c:63
 handle_truncate fs/namei.c:3010 [inline]
 do_last fs/namei.c:3437 [inline]
 path_openat+0x1dcc/0x2970 fs/namei.c:3571
 do_filp_open+0x179/0x3c0 fs/namei.c:3605
 do_sys_open+0x296/0x410 fs/open.c:1081
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fcf663ed0f9
RSP: 002b:00007fcf6495f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fcf6650cf80 RCX: 00007fcf663ed0f9
RDX: 0000000000000000 RSI: 0000000000000600 RDI: 0000000020000080
RBP: 00007fcf66448ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd66b2958f R14: 00007fcf6495f300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..