BTRFS info (device loop9): balance: start -s BTRFS info (device loop9): relocating block group 1048576 flags system ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 19663 at fs/btrfs/volumes.c:3362 btrfs_remove_chunk+0x15b6/0x18b0 fs/btrfs/volumes.c:3362 Modules linked in: CPU: 1 PID: 19663 Comm: syz.9.4298 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:btrfs_remove_chunk+0x15b6/0x18b0 fs/btrfs/volumes.c:3362 Code: 48 c7 c7 20 38 0d 8b 44 89 f6 e8 a5 c9 c4 fd 0f 0b e9 d4 fd ff ff e8 79 1b fb fd 48 c7 c7 20 38 0d 8b 44 89 f6 e8 8a c9 c4 fd <0f> 0b e9 1b fe ff ff e8 5e 1b fb fd 48 c7 c7 20 38 0d 8b 44 89 f6 RSP: 0018:ffffc9000f42f8c0 EFLAGS: 00010246 RAX: 00cee0a3867e9200 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc900136c5000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000f42fab0 R08: ffffc9000f42f5c7 R09: 1ffff92001e85eb8 R10: dffffc0000000000 R11: fffff52001e85eb9 R12: dffffc0000000000 R13: ffff88802ec9b150 R14: ffffffffffffffe4 R15: ffff8880661ac001 FS: 00007fec620f36c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2df1dff8 CR3: 000000005f371000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: btrfs_relocate_chunk+0x292/0x3b0 fs/btrfs/volumes.c:3492 __btrfs_balance+0x1865/0x21e0 fs/btrfs/volumes.c:4203 btrfs_balance+0xc57/0x1130 fs/btrfs/volumes.c:4580 btrfs_ioctl_balance+0x48c/0x710 fs/btrfs/ioctl.c:3652 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fec6119f559 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:00007fec620f3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fec61425fa0 RCX: 00007fec6119f559 RDX: 0000200000021ec0 RSI: 00000000c4009420 RDI: 0000000000000004 RBP: 00007fec61236b20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fec61426038 R14: 00007fec61425fa0 R15: 00007ffff71641c8