------------[ cut here ]------------
WARNING: CPU: 0 PID: 7962 at fs/nilfs2/dat.c:195 nilfs_dat_commit_end+0x469/0x5c0 fs/nilfs2/dat.c:195
Kernel panic - not syncing: panic_on_warn set ...

NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
CPU: 0 PID: 7962 Comm: syz-executor248 Not tainted 4.14.295-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
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:964
RIP: 0010:nilfs_dat_commit_end+0x469/0x5c0 fs/nilfs2/dat.c:195
RSP: 0018:ffff888097f279e0 EFLAGS: 00010297
RAX: ffff8880b5670680 RBX: ffff8880b2f3a820 RCX: 1ffff110167c2479
RDX: 0000000000000000 RSI: 0000000000001401 RDI: ffff8880b3e12d38
RBP: ffff888097f27a50 R08: ffffffff8b9d19e8 R09: 0000000000000004
R10: 0000000000000000 R11: ffff8880b5670680 R12: ffff88809f0e29c8
R13: ffff888097f27a68 R14: 0000000000000003 R15: ffffffff00000000
 nilfs_bmap_commit_end_ptr fs/nilfs2/bmap.h:228 [inline]
 nilfs_direct_delete+0x1f8/0x250 fs/nilfs2/direct.c:166
 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:719
 nilfs_evict_inode+0x11b/0x3a0 fs/nilfs2/inode.c:806
 evict+0x2c8/0x700 fs/inode.c:555
 iput_final fs/inode.c:1524 [inline]
 iput+0x458/0x7e0 fs/inode.c:1551
 do_unlinkat+0x35b/0x5c0 fs/namei.c:4100
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7ff2c0a79229
RSP: 002b:00007ffd3368e3c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007ff2c0a79229
RDX: 00007ff2c0a79229 RSI: 00007ff2c0a377c3 RDI: 0000000020000080
RBP: 00007ff2c0a38a90 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555559512c0 R11: 0000000000000246 R12: 00007ff2c0a38b20
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..