NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds audit: type=1800 audit(1677765458.425:2): pid=7967 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor149" name="bus" dev="loop0" ino=18 res=0 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7994 at fs/nilfs2/sufile.c:551 nilfs_sufile_set_segment_usage+0x461/0x5f0 fs/nilfs2/sufile.c:551 Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 PID: 7994 Comm: segctord Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 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_sufile_set_segment_usage+0x461/0x5f0 fs/nilfs2/sufile.c:551 RSP: 0018:ffff8880b3d57af8 EFLAGS: 00010297 RAX: ffff8880b363e4c0 RBX: ffff88808cf91200 RCX: ffff8880a893d000 RDX: 0000000000000000 RSI: 1ffff11014446f51 RDI: ffff8880a893d06c RBP: ffff8880a893d060 R08: ffff8880a2237a00 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880b363e4c0 R12: 0000000000000000 R13: 1ffff110167aaf64 R14: ffff88808cf915b0 R15: 000000006400ab52 nilfs_segctor_update_segusage fs/nilfs2/segment.c:1460 [inline] nilfs_segctor_do_construct+0x1c82/0x79c0 fs/nilfs2/segment.c:2084 nilfs_segctor_construct+0x6db/0x8e0 fs/nilfs2/segment.c:2394 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2502 [inline] nilfs_segctor_thread+0x3ad/0xdb0 fs/nilfs2/segment.c:2586 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Kernel Offset: disabled Rebooting in 86400 seconds..