BTRFS info (device loop4): block group has cluster?: no
BTRFS info (device loop4): 0 free space entries at or bigger than 4096 bytes
BTRFS info (device loop4): 4190208 bytes available across all block groups
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 3489 at fs/btrfs/block-group.c:3937 do_chunk_alloc fs/btrfs/block-group.c:3937 [inline]
WARNING: CPU: 0 PID: 3489 at fs/btrfs/block-group.c:3937 btrfs_chunk_alloc+0xf70/0x10d0 fs/btrfs/block-group.c:4179
Modules linked in:
CPU: 0 UID: 0 PID: 3489 Comm: kworker/u8:8 Not tainted 6.14.0-rc4-syzkaller-00073-g5394eea10651 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:3937 [inline]
RIP: 0010:btrfs_chunk_alloc+0xf70/0x10d0 fs/btrfs/block-group.c:4179
Code: 04 24 48 8b 38 48 c7 c6 a0 96 6e 8c 89 da e8 87 ba 1b fd eb 19 e8 80 c2 b5 fd 90 48 c7 c7 40 96 6e 8c 89 de e8 81 7f 75 fd 90 <0f> 0b 90 90 49 bd 00 00 00 00 00 fc ff df 4c 8b 74 24 08 4c 8b 64
RSP: 0018:ffffc9000c7e7888 EFLAGS: 00010246
RAX: 019d49dcac8fc800 RBX: ffffffffffffffe4 RCX: ffff88803250da00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81817d42 R09: 1ffff110170c519a
R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff88807084b2ab
R13: dffffc0000000000 R14: ffff88805a158001 R15: ffff88807ed8c800
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1afcff0440 CR3: 00000000340f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 flush_space+0x386/0xd30 fs/btrfs/space-info.c:815
 btrfs_async_reclaim_metadata_space+0x178/0x3b0 fs/btrfs/space-info.c:1120
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3317
 worker_thread+0x870/0xd30 kernel/workqueue.c:3398
 kthread+0x7a9/0x920 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>