BTRFS error (device loop0): failed to run delayed ref for logical 5308416 num_bytes 4096 type 176 action 1 ref_mod 1: -28 ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 2 PID: 6220 at fs/btrfs/extent-tree.c:2191 btrfs_run_delayed_refs+0x2d1/0x330 fs/btrfs/extent-tree.c:2191 Modules linked in: CPU: 2 UID: 0 PID: 6220 Comm: syz-executor.0 Not tainted 6.13.0-rc1-syzkaller-g7503345ac5f5 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:btrfs_run_delayed_refs+0x2d1/0x330 fs/btrfs/extent-tree.c:2191 Code: 35 ac 8a 07 31 db e9 78 ff ff ff e8 59 24 5b fe e9 b2 fd ff ff e8 5f 3c f8 fd 90 48 c7 c7 80 b7 b7 8b 89 de e8 d0 85 b8 fd 90 <0f> 0b 90 90 eb bc 48 8b 3c 24 e8 90 24 5b fe e9 7c fe ff ff 4c 89 RSP: 0018:ffffc900032ef3b8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 00000000ffffffe4 RCX: ffffffff815a5159 RDX: ffff8880273e0000 RSI: ffffffff815a5166 RDI: 0000000000000001 RBP: ffff8880380f04a0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000001 R13: 0000000000000000 R14: ffffed100854586b R15: ffff8880380f0500 FS: 00007f9bf776d6c0(0000) GS:ffff88806a800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563f5dbf7318 CR3: 000000002c638000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_commit_transaction+0x783/0x3b30 fs/btrfs/transaction.c:2195 btrfs_sync_file+0xa47/0x1050 fs/btrfs/file.c:1755 vfs_fsync_range+0x136/0x220 fs/sync.c:187 generic_write_sync include/linux/fs.h:2904 [inline] iomap_dio_complete+0x84e/0xa20 fs/iomap/direct-io.c:133 btrfs_direct_write+0x6c4/0xc20 fs/btrfs/direct-io.c:896 btrfs_do_write_iter+0x5c0/0x770 fs/btrfs/file.c:1396 iter_file_splice_write+0x90f/0x10b0 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x18f/0x6c0 fs/splice.c:1164 splice_direct_to_actor+0x346/0xa40 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x178/0x250 fs/splice.c:1233 do_sendfile+0xaed/0xe30 fs/read_write.c:1363 __do_sys_sendfile64 fs/read_write.c:1424 [inline] __se_sys_sendfile64 fs/read_write.c:1410 [inline] __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9bf6a7dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9bf776d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f9bf6babf80 RCX: 00007f9bf6a7dda9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00007f9bf6aca47a R08: 0000000000000000 R09: 0000000000000000 R10: 000000000880000c R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f9bf6babf80 R15: 00007fff7a105678