------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 3604 at fs/btrfs/block-group.c:4007 do_chunk_alloc fs/btrfs/block-group.c:4007 [inline] WARNING: CPU: 1 PID: 3604 at fs/btrfs/block-group.c:4007 btrfs_chunk_alloc+0xe67/0x1440 fs/btrfs/block-group.c:4248 Modules linked in: CPU: 1 UID: 0 PID: 3604 Comm: kworker/u8:14 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: events_unbound btrfs_async_reclaim_metadata_space RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:4007 [inline] RIP: 0010:btrfs_chunk_alloc+0xe67/0x1440 fs/btrfs/block-group.c:4248 Code: 00 e8 1d 0e bd fd 84 c0 74 29 e8 74 cf d6 fd e9 62 01 00 00 e8 6a cf d6 fd 90 48 c7 c7 a0 60 30 8b 44 89 f6 e8 da 17 9b fd 90 <0f> 0b 90 90 e9 9a fc ff ff e8 fb 1a de 06 89 c3 31 ff 89 c6 e8 f0 RSP: 0018:ffffc9000df47758 EFLAGS: 00010246 RAX: 149330f5a09aa400 RBX: ffff888028758001 RCX: ffff888030ad1e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed101712487b R12: dffffc0000000000 R13: ffff888036e93800 R14: ffffffffffffffe4 R15: ffff88805db50000 FS: 0000000000000000(0000) GS:ffff888126cc9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f34ba2f6000 CR3: 000000000d5a6000 CR4: 00000000003526f0 Call Trace: flush_space+0x30b/0xcd0 fs/btrfs/space-info.c:861 do_async_reclaim_metadata_space+0x144/0x390 fs/btrfs/space-info.c:1158 btrfs_async_reclaim_metadata_space+0x89/0xe0 fs/btrfs/space-info.c:1226 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245