BTRFS info (device loop1): balance: start -d -m
BTRFS info (device loop1): relocating block group 6881280 flags data|metadata
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4183 at fs/btrfs/volumes.c:3259 btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259
Modules linked in:
CPU: 1 PID: 4183 Comm: syz.1.13 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259
lr : btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259
sp : ffff80001fd87720
x29: ffff80001fd87880 x28: ffff0000dcfacb00 x27: ffff80001fd877c0
x26: dfff800000000000 x25: ffffffffffffffe4 x24: 1fffe0001b9f5969
x23: ffff0000dcfacb4c x22: ffff0000d5f2f158 x21: 0000000000690000
x20: 00000000ffffffe4 x19: ffff0000dcfacb58 x18: 0000000000000001
x17: 0000000000000002 x16: ffff8000111bc798 x15: 00000000ffffffff
x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000
x11: 000000000007ffff x10: ffff80002105c000 x9 : 6a4476f10de3c500
x8 : 6a4476f10de3c500 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fd87018 x4 : ffff80001424f400 x3 : ffff80000850433c
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259
 btrfs_relocate_chunk+0x1d0/0x280 fs/btrfs/volumes.c:3376
 __btrfs_balance+0x1170/0x1ba4 fs/btrfs/volumes.c:4079
 btrfs_balance+0xac4/0x1138 fs/btrfs/volumes.c:4469
 btrfs_ioctl_balance+0x4cc/0x658 fs/btrfs/ioctl.c:4152
 btrfs_ioctl+0x8d0/0xb38 fs/btrfs/ioctl.c:5012
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 89010
hardirqs last  enabled at (89009): [<ffff8000082f8f64>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (89010): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (88652): [<ffff800008031f40>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (88650): [<ffff800008031f0c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace f80ffd4e9e064c8c ]---
BTRFS: error (device loop1) in btrfs_remove_chunk:3259: errno=-28 No space left
BTRFS info (device loop1): forced readonly
BTRFS info (device loop1): 1 enospc errors during balance
BTRFS info (device loop1): balance: ended with status: -30