option from the mount to silence this warning. ======================================================= NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 4096) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3497 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x248/0x2a0 Modules linked in: CPU: 1 PID: 3497 Comm: syz-executor359 Not tainted 5.15.113-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:nilfs_dat_prepare_end+0x248/0x2a0 fs/nilfs2/dat.c:158 Code: 01 5c fe 89 eb 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c7 01 5c fe e8 52 9f dc fd e9 5a ff ff ff e8 b8 01 5c fe <0f> 0b bb fe ff ff ff eb d2 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc9000253f8b8 EFLAGS: 00010293 RAX: ffffffff8323e798 RBX: 00000000fffffffe RCX: ffff88807e429dc0 RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe RBP: 1ffff920004a7f2c R08: ffffffff8323e711 R09: ffffffff83221850 R10: 0000000000000002 R11: ffff88807e429dc0 R12: ffffc9000253f960 R13: ffff888074a28158 R14: ffffc9000253f978 R15: dffffc0000000000 FS: 0000555555a0d300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f5cafbfb40 CR3: 000000001a9bf000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nilfs_bmap_prepare_end_ptr fs/nilfs2/bmap.h:211 [inline] nilfs_direct_delete+0x17b/0x300 fs/nilfs2/direct.c:155 nilfs_bmap_do_delete fs/nilfs2/bmap.c:184 [inline] nilfs_bmap_do_truncate fs/nilfs2/bmap.c:272 [inline] nilfs_bmap_truncate+0x2fc/0x560 fs/nilfs2/bmap.c:305 nilfs_truncate_bmap+0x203/0x3c0 fs/nilfs2/inode.c:850 nilfs_evict_inode+0x218/0x500 fs/nilfs2/inode.c:955 evict+0x2a4/0x620 fs/inode.c:587 do_unlinkat+0x502/0x940 fs/namei.c:4284 __do_sys_unlinkat fs/namei.c:4320 [inline] __se_sys_unlinkat fs/namei.c:4313 [inline] __x64_sys_unlinkat+0xca/0xf0 fs/namei.c:4313 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7feb3ee27ae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd543425f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feb3ee27ae9 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007feb3ede70f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007feb3ede7180 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000