------------[ cut here ]------------ btrfs_abort_should_print_stack(__error) WARNING: fs/btrfs/inode.c:3146 at btrfs_finish_one_ordered+0x1b5b/0x1f00 fs/btrfs/inode.c:3146, CPU#0: kworker/u4:2/30 Modules linked in: CPU: 0 UID: 0 PID: 30 Comm: kworker/u4:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: btrfs-endio-write btrfs_work_helper RIP: 0010:btrfs_finish_one_ordered+0x1b5b/0x1f00 fs/btrfs/inode.c:3146 Code: fb 74 13 83 7c 24 10 f4 75 1a e8 e0 92 ce fd eb 1c e8 89 d5 bc 07 e8 d4 92 ce fd eb 10 e8 cd 92 ce fd eb 09 e8 c6 92 ce fd 90 <0f> 0b 90 48 8b 44 24 10 89 c1 f7 d9 4c 8b 7c 24 20 4c 8b 74 24 38 RSP: 0018:ffffc90000387880 EFLAGS: 00010293 RAX: ffffffff83f7ae7a RBX: ffff888050cac001 RCX: ffff88801ed42540 RDX: 0000000000000000 RSI: ffffffff8ef884f0 RDI: 00000000ffffffe4 RBP: ffffc90000387a50 R08: ffff88801ed42540 R09: 0000000000000003 R10: 00000000fffffffb R11: 0000000000000000 R12: ffff88805548ed38 R13: 00000000ffffffe4 R14: ffff888043614cc8 R15: 0000000000010000 FS: 0000000000000000(0000) GS:ffff88808c821000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9c94bff000 CR3: 0000000043a9e000 CR4: 0000000000352ef0 Call Trace: btrfs_work_helper+0x3a2/0xc50 fs/btrfs/async-thread.c:312 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245