loop0: detected capacity change from 0 to 32768
btrfs: Deprecated parameter 'usebackuproot'
BTRFS warning: 'usebackuproot' is deprecated, use 'rescue=usebackuproot' instead
BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5319)
BTRFS info (device loop0): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
BTRFS info (device loop0): using crc32c (crc32c-x86_64) checksum algorithm
BTRFS info (device loop0): rebuilding free space tree
BTRFS info (device loop0): disabling free space tree
BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS error (device loop0): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 1 ref_mod 1: -28
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 5319 at fs/btrfs/extent-tree.c:2159 btrfs_run_delayed_refs+0x2cb/0x300 fs/btrfs/extent-tree.c:2159
Modules linked in:
CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.16.0-rc4-syzkaller #0 PREEMPT(full) 
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+0x2cb/0x300 fs/btrfs/extent-tree.c:2159
Code: 48 c7 c6 00 00 cd 8b 44 89 fa e8 d0 bd 6a fd e9 6e ff ff ff e8 46 f3 00 fe 90 48 c7 c7 a0 ff cc 8b 44 89 fe e8 c6 9b c4 fd 90 <0f> 0b 90 90 e9 4f ff ff ff 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 82
RSP: 0018:ffffc9000d6e6fb8 EFLAGS: 00010246
RAX: 901158801b230b00 RBX: ffff88804c5b6940 RCX: 0000000000100000
RDX: ffffc9000e56a000 RSI: 00000000000fffff RDI: 0000000000100000
RBP: 0000000000000000 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: ffff888053154001
R13: ffff888052ad1000 R14: dffffc0000000000 R15: 00000000ffffffe4
FS:  00007fb53589d6c0(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555565af37c8 CR3: 000000004356b000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x274/0x37f0 fs/btrfs/transaction.c:2208
 btrfs_sync_file+0xd30/0x1160 fs/btrfs/file.c:1797
 generic_write_sync include/linux/fs.h:3031 [inline]
 iomap_dio_complete+0x5ae/0x980 fs/iomap/direct-io.c:138
 btrfs_direct_write+0x7f8/0xb10 fs/btrfs/direct-io.c:911
 btrfs_do_write_iter+0x25f/0x710 fs/btrfs/file.c:1438
 iter_file_splice_write+0x937/0x1000 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0xfe/0x160 fs/splice.c:1158
 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x181/0x270 fs/splice.c:1227
 do_sendfile+0x4da/0x7e0 fs/read_write.c:1370
 __do_sys_sendfile64 fs/read_write.c:1431 [inline]
 __se_sys_sendfile64+0x13e/0x190 fs/read_write.c:1417
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb53498e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb53589d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fb534bb5fa0 RCX: 00007fb53498e929
RDX: 0000000000000000 RSI: 000000000000000c RDI: 000000000000000d
RBP: 00007fb534a10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000080000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb534bb5fa0 R15: 00007ffed903b868
 </TASK>