BTRFS info (device loop3): relocating block group 1048576 flags system
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WARNING: CPU: 1 PID: 4687 at fs/btrfs/volumes.c:3265 btrfs_remove_chunk+0x1500/0x1a00 fs/btrfs/volumes.c:3265
Modules linked in:
CPU: 1 PID: 4687 Comm: syz.3.93 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:btrfs_remove_chunk+0x1500/0x1a00 fs/btrfs/volumes.c:3265
Code: 48 c7 c7 00 23 d0 8a 44 89 f6 e8 9b 72 d9 fd 0f 0b e9 76 fe ff ff e8 0f 04 0e fe 48 c7 c7 00 23 d0 8a 44 89 f6 e8 80 72 d9 fd <0f> 0b e9 95 fe ff ff e8 f4 03 0e fe 48 c7 c7 00 23 d0 8a 44 89 f6
RSP: 0018:ffffc90005437920 EFLAGS: 00010246
RAX: e27cd3177bc6c800 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9000dd61000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90005437ad0 R08: ffff8880b8e279db R09: 1ffff110171c4f3b
R10: dffffc0000000000 R11: ffffed10171c4f3c R12: 1ffff1100ad79c10
R13: dffffc0000000000 R14: ffffffffffffffe4 R15: ffff88802839c001
FS:  00007fb3745be6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb6f2f456b8 CR3: 000000001cafa000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_relocate_chunk+0x296/0x3b0 fs/btrfs/volumes.c:3395
 __btrfs_balance+0x18af/0x2230 fs/btrfs/volumes.c:4104
 btrfs_balance+0xcaf/0x1190 fs/btrfs/volumes.c:4480
 btrfs_ioctl_balance+0x49f/0x720 fs/btrfs/ioctl.c:4536
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb37379ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb3745be028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb373a15fa0 RCX: 00007fb37379ce59
RDX: 0000200000000780 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007fb373832d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb373a16038 R14: 00007fb373a15fa0 R15: 00007fff210f7a48
 </TASK>