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): disk space caching is enabled
BTRFS warning (device loop0): space cache v1 is being deprecated and will be removed in a future release, please use -o space_cache=v2
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 info (device loop0): balance: start -d -m
BTRFS info (device loop0): relocating block group 6881280 flags data|metadata
BTRFS info (device loop0): relocating block group 5242880 flags data|metadata
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5319 at fs/btrfs/extent-tree.c:212 btrfs_lookup_extent_info+0xfb7/0x1130 fs/btrfs/extent-tree.c:212
Modules linked in:
CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-08291-g805ba04cb7cc #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_lookup_extent_info+0xfb7/0x1130 fs/btrfs/extent-tree.c:212
Code: 8b ff ff ff 48 8b 7c 24 60 48 c7 c6 ea 82 12 8e ba ac 00 00 00 b9 8b ff ff ff e8 44 f5 4f fd e9 a3 fd ff ff e8 0a f5 e7 fd 90 <0f> 0b 90 e9 fc fc ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 33 f1 ff ff
RSP: 0018:ffffc9000d1eee20 EFLAGS: 00010293
RAX: ffffffff83d777c6 RBX: ffffc9000d1ef060 RCX: ffff888000c62440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000d1eefc0 R08: ffffffff83d774b9 R09: 1ffff1100a4d4076
R10: dffffc0000000000 R11: ffffed100a4d4077 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc9000d1ef080 R15: ffff8880526a03b0
FS:  00007ffb79d4d6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 0000000044842000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 update_ref_for_cow+0x5a4/0x11f0 fs/btrfs/ctree.c:373
 btrfs_force_cow_block+0x9fe/0x1fd0 fs/btrfs/ctree.c:527
 btrfs_cow_block+0x371/0x830 fs/btrfs/ctree.c:688
 do_relocation+0xec8/0x19b0 fs/btrfs/relocation.c:2275
 relocate_tree_block fs/btrfs/relocation.c:2528 [inline]
 relocate_tree_blocks+0x1258/0x20c0 fs/btrfs/relocation.c:2635
 relocate_block_group+0x755/0xd40 fs/btrfs/relocation.c:3609
 btrfs_relocate_block_group+0x77d/0xd90 fs/btrfs/relocation.c:4009
 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3511
 __btrfs_balance+0x1b0f/0x26b0 fs/btrfs/volumes.c:4292
 btrfs_balance+0xbdc/0x10c0 fs/btrfs/volumes.c:4669
 btrfs_ioctl_balance+0x3f5/0x660 fs/btrfs/ioctl.c:3587
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
 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: 0033:0x7ffb78f8cda9
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:00007ffb79d4d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffb791a5fa0 RCX: 00007ffb78f8cda9
RDX: 0000000020000180 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007ffb7900e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffb791a5fa0 R15: 00007fff61620108
 </TASK>