BTRFS error (device loop1): allocation failed flags 2, wanted 4096 tree-log 0, relocation: 0
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BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 12 at fs/btrfs/block-group.c:3990 do_chunk_alloc fs/btrfs/block-group.c:3990 [inline]
WARNING: CPU: 0 PID: 12 at fs/btrfs/block-group.c:3990 btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231
Modules linked in:
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted 6.16.0-rc5-syzkaller-gec4801305969 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : do_chunk_alloc fs/btrfs/block-group.c:3990 [inline]
pc : btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231
lr : do_chunk_alloc fs/btrfs/block-group.c:3990 [inline]
lr : btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231
sp : ffff800097a877c0
x29: ffff800097a87820 x28: ffff0000d241d000 x27: ffffffffffffffe4
x26: 0000000000000001 x25: ffff0000c83a28b4 x24: ffff0000de038818
x23: dfff800000000000 x22: ffff0000f3d40000 x21: 0000000000000000
x20: 0000000000000000 x19: ffff0000c83a2800 x18: 00000000ffffffff
x17: 0000000000000000 x16: ffff80008aefc458 x15: 0000000000000001
x14: 1fffe000337d40e2 x13: 0000000000000000 x12: 0000000000000000
x11: ffff6000337d40e3 x10: 0000000000ff0100 x9 : 670511298f526600
x8 : 670511298f526600 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800097a87118 x4 : ffff80008f766be0 x3 : ffff8000807bcfac
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:3990 [inline] (P)
 btrfs_chunk_alloc+0xf58/0x1220 fs/btrfs/block-group.c:4231 (P)
 flush_space+0x2f0/0xb68 fs/btrfs/space-info.c:861
 do_async_reclaim_metadata_space+0x110/0x364 fs/btrfs/space-info.c:1158
 btrfs_async_reclaim_metadata_space+0x90/0xd8 fs/btrfs/space-info.c:1226
 process_one_work+0x7e8/0x155c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3321 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3402
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:843
irq event stamp: 1991266
hardirqs last  enabled at (1991265): [<ffff800080554800>] __up_console_sem kernel/printk/printk.c:344 [inline]
hardirqs last  enabled at (1991265): [<ffff800080554800>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885
hardirqs last disabled at (1991266): [<ffff80008aef6e24>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574
softirqs last  enabled at (1990954): [<ffff8000801fd5e4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1990952): [<ffff8000801fd5b0>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
BTRFS: error (device loop1 state A) in do_chunk_alloc:3990: errno=-28 No space left