------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 5319 at fs/btrfs/volumes.c:3426 btrfs_remove_chunk+0x19ae/0x1c90 fs/btrfs/volumes.c:3426
Modules linked in:
CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.14.0-rc4-syzkaller #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_remove_chunk+0x19ae/0x1c90 fs/btrfs/volumes.c:3426
Code: 48 8b 38 48 c7 c6 c0 37 6d 8c 44 89 e2 e8 8a 5f 33 fd eb 1a e8 63 63 cd fd 90 48 c7 c7 60 37 6d 8c 44 89 e6 e8 f3 20 8d fd 90 <0f> 0b 90 90 49 bf 00 00 00 00 00 fc ff df 4c 8b 6c 24 10 e9 7e f9
RSP: 0018:ffffc9000d1ef7c0 EFLAGS: 00010246
RAX: 4a07afb968b9f900 RBX: ffff888051cb4001 RCX: 0000000000100000
RDX: ffffc9000eb7b000 RSI: 000000000000cf9e RDI: 000000000000cf9f
RBP: ffffc9000d1ef9b0 R08: ffffffff81817e32 R09: fffffbfff1d3a614
R10: dffffc0000000000 R11: fffffbfff1d3a614 R12: ffffffffffffffe4
R13: ffff8880430c8000 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f528caa76c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564ea38bebe8 CR3: 00000000440be000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_delete_unused_bgs+0xcd2/0x1120 fs/btrfs/block-group.c:1677
 btrfs_remount_ro fs/btrfs/super.c:1357 [inline]
 btrfs_reconfigure+0xbda/0x2c30 fs/btrfs/super.c:1538
 reconfigure_super+0x43a/0x870 fs/super.c:1083
 do_remount fs/namespace.c:3100 [inline]
 path_mount+0xc22/0xfa0 fs/namespace.c:3879
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 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: 0033:0x7f528bb8d169
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:00007f528caa7038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f528bda6080 RCX: 00007f528bb8d169
RDX: 0000000000000000 RSI: 0000400000000100 RDI: 0000000000000000
RBP: 00007f528bc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000021 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f528bda6080 R15: 00007fffa216e848
 </TASK>