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): using free-space-tree
BTRFS info (device loop0): rebuilding free space tree
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 5319 at fs/btrfs/extent-tree.c:3203 __btrfs_free_extent+0x2ccf/0x3980 fs/btrfs/extent-tree.c:3203
Modules linked in:
CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #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_free_extent+0x2ccf/0x3980 fs/btrfs/extent-tree.c:3203
Code: 6c 8c 8b 5c 24 28 89 da e8 fe 07 43 fd eb 2c e8 f7 0c dd fd 90 48 c7 c7 40 02 6c 8c 44 8b 64 24 28 44 89 e6 e8 62 c9 9c fd 90 <0f> 0b 90 90 49 be 00 00 00 00 00 fc ff df 44 89 e3 4c 8b 64 24 10
RSP: 0018:ffffc9000d2beac0 EFLAGS: 00010246
RAX: 476512205e0e8e00 RBX: ffff888053414001 RCX: 0000000000100000
RDX: ffffc9000df0a000 RSI: 000000000004547d RDI: 000000000004547e
RBP: ffffc9000d2bec90 R08: ffffffff81817e32 R09: 1ffff11003f8519a
R10: dffffc0000000000 R11: ffffed1003f8519b R12: 00000000ffffffe4
R13: ffff8880530edb90 R14: 00000000ffffffe4 R15: 0000000000000000
FS:  00007fbb99f826c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb96dfc000 CR3: 000000003dc12000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1976 [inline]
 __btrfs_run_delayed_refs+0xf9f/0x40f0 fs/btrfs/extent-tree.c:2046
 btrfs_run_delayed_refs+0xe3/0x2f0 fs/btrfs/extent-tree.c:2158
 btrfs_commit_transaction+0x4b9/0x3760 fs/btrfs/transaction.c:2196
 btrfs_sync_file+0xdd7/0x11e0 fs/btrfs/file.c:1740
 generic_write_sync include/linux/fs.h:2970 [inline]
 btrfs_do_write_iter+0x5fc/0x7c0 fs/btrfs/file.c:1391
 iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743
 do_splice_from fs/splice.c:941 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1164
 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108
 do_splice_direct_actor fs/splice.c:1207 [inline]
 do_splice_direct+0x289/0x3e0 fs/splice.c:1233
 do_sendfile+0x564/0x8a0 fs/read_write.c:1363
 __do_sys_sendfile64 fs/read_write.c:1424 [inline]
 __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbb9918d169
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:00007fbb99f82038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fbb993a5fa0 RCX: 00007fbb9918d169
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000008
RBP: 00007fbb9920e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000080000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbb993a5fa0 R15: 00007fffabd4d778
 </TASK>