------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 177 at fs/btrfs/block-group.c:4000 do_chunk_alloc fs/btrfs/block-group.c:4000 [inline] WARNING: CPU: 1 PID: 177 at fs/btrfs/block-group.c:4000 btrfs_chunk_alloc+0xfa0/0x1470 fs/btrfs/block-group.c:4241 Modules linked in: CPU: 1 UID: 0 PID: 177 Comm: kworker/u8:6 Tainted: G W 6.16.0-syzkaller-11699-g7e161a991ea7 #0 PREEMPT_{RT,(full)} Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: events_unbound btrfs_async_reclaim_metadata_space RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:4000 [inline] RIP: 0010:btrfs_chunk_alloc+0xfa0/0x1470 fs/btrfs/block-group.c:4241 Code: c4 fd 84 c0 0f 84 63 01 00 00 e8 eb 57 dd fd e9 8c 03 00 00 e8 e1 57 dd fd 90 48 c7 c7 20 83 4f 8b 44 89 f6 e8 31 2b a2 fd 90 <0f> 0b 90 90 e9 3e fc ff ff e8 c2 57 dd fd eb 05 e8 bb 57 dd fd e8 RSP: 0018:ffffc90003b3f778 EFLAGS: 00010246 RAX: 7e285c4e71341600 RBX: ffff888028ff8001 RCX: ffff888020b6bb80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124863 R12: dffffc0000000000 R13: ffff8880243ab800 R14: ffffffffffffffe4 R15: ffff88805d2c7950 FS: 0000000000000000(0000) GS:ffff8881269cd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff284ec5e00 CR3: 0000000036ada000 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:3236 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245