BTRFS info (device loop4): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS info (device loop4): balance: start -susage=34359738372,drange=7..526336,limit=0..6
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5521 at fs/btrfs/block-group.c:2437 btrfs_create_pending_block_groups+0x9e8/0xca8 fs/btrfs/block-group.c:2437
Modules linked in:
CPU: 0 PID: 5521 Comm: syz.4.467 Not tainted 5.15.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_create_pending_block_groups+0x9e8/0xca8 fs/btrfs/block-group.c:2437
lr : btrfs_create_pending_block_groups+0x9e8/0xca8 fs/btrfs/block-group.c:2437
sp : ffff80001f667540
x29: ffff80001f667710 x28: ffff0000c5f6d058 x27: ffff0000ebc88740
x26: ffff0000ebc88738 x25: ffff0000c5f6d050 x24: dfff800000000000
x23: ffff0000c5f6d1b0 x22: 1fffe00018beda0b x21: 1fffe00018beda0a
x20: 00000000ffffffe4 x19: ffff0000f10ad9d0 x18: 0000000000000001
x17: 0000000000000002 x16: ffff8000083007ec x15: 00000000ffffffff
x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000
x11: 000000000006c8b0 x10: ffff800025b99000 x9 : 5a4c5ac5d0fa8700
x8 : 5a4c5ac5d0fa8700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001f666e38 x4 : ffff80001422f280 x3 : ffff8000083008fc
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 btrfs_create_pending_block_groups+0x9e8/0xca8 fs/btrfs/block-group.c:2437
 __btrfs_end_transaction+0x13c/0x608 fs/btrfs/transaction.c:1016
 btrfs_end_transaction+0x24/0x34 fs/btrfs/transaction.c:1052
 btrfs_inc_block_group_ro+0x4ec/0x558 fs/btrfs/block-group.c:2660
 btrfs_relocate_block_group+0x2b8/0x8a4 fs/btrfs/relocation.c:4041
 btrfs_relocate_chunk+0xb8/0x280 fs/btrfs/volumes.c:3332
 __btrfs_balance+0x1170/0x1ba4 fs/btrfs/volumes.c:4073
 btrfs_balance+0xac4/0x1138 fs/btrfs/volumes.c:4463
 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: 81450
hardirqs last  enabled at (81449): [<ffff8000082f7654>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (81450): [<ffff80001119f610>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (80790): [<ffff800008031d3c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (80788): [<ffff800008031d08>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace ae3bc783d4d71d2c ]---
BTRFS: error (device loop4) in btrfs_create_pending_block_groups:2437: errno=-28 No space left
BTRFS info (device loop4): forced readonly
BTRFS: error (device loop4) in btrfs_create_pending_block_groups:2448: errno=-28 No space left
BTRFS info (device loop4): balance: ended with status: -30