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 -susage=34359738372,drange=7..526332,limit=0..6 ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 0 PID: 5917 at fs/btrfs/block-group.c:2776 btrfs_create_pending_block_groups+0xec0/0xfb0 fs/btrfs/block-group.c:2776 Modules linked in: CPU: 0 PID: 5917 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:btrfs_create_pending_block_groups+0xec0/0xfb0 fs/btrfs/block-group.c:2776 Code: 67 97 91 8c ba df 0a 00 00 44 89 e1 e8 c9 f4 db 06 e9 8b f5 ff ff e8 ef 2b e6 fd 48 c7 c7 60 12 0f 8b 44 89 e6 e8 60 e2 af fd <0f> 0b e9 79 fe ff ff e8 d4 2b e6 fd 48 c7 c7 60 12 0f 8b 44 89 ee RSP: 0018:ffffc90003317740 EFLAGS: 00010246 RAX: 6b56496c26211e00 RBX: 0000000000000000 RCX: ffff88802bcf9e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffffc90003317990 R08: ffffc90003317347 R09: 1ffff92000662e68 R10: dffffc0000000000 R11: fffff52000662e69 R12: 00000000ffffffe4 R13: ffff88802b966010 R14: ffff88802b966058 R15: ffff88802b9661c0 FS: 000055558b004500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33b63fff CR3: 0000000030220000 CR4: 00000000003506f0 Call Trace: __btrfs_end_transaction+0x140/0x630 fs/btrfs/transaction.c:1024 btrfs_inc_block_group_ro+0x596/0x630 fs/btrfs/block-group.c:3037 btrfs_relocate_block_group+0x3a5/0xaa0 fs/btrfs/relocation.c:4046 btrfs_relocate_chunk+0x12a/0x3b0 fs/btrfs/volumes.c:3321 __btrfs_balance+0x189c/0x2220 fs/btrfs/volumes.c:4073 btrfs_balance+0xcb3/0x11a0 fs/btrfs/volumes.c:4450 btrfs_ioctl_balance+0x4a2/0x730 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+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f80f899c819 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:00007ffc11215488 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f80f8c15fa0 RCX: 00007f80f899c819 RDX: 0000200000000440 RSI: 00000000c4009420 RDI: 0000000000000003 RBP: 00007f80f8a32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f80f8c15fac R14: 00007f80f8c15fa0 R15: 00007f80f8c15fa0