------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 137 at fs/btrfs/block-group.c:3990 do_chunk_alloc fs/btrfs/block-group.c:3990 [inline] WARNING: CPU: 1 PID: 137 at fs/btrfs/block-group.c:3990 btrfs_chunk_alloc+0xf4d/0x1150 fs/btrfs/block-group.c:4231 Modules linked in: CPU: 1 UID: 0 PID: 137 Comm: kworker/u8:5 Not tainted 6.16.0-rc7-syzkaller-00105-g2942242dde89 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: events_unbound btrfs_async_reclaim_data_space RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:3990 [inline] RIP: 0010:btrfs_chunk_alloc+0xf4d/0x1150 fs/btrfs/block-group.c:4231 Code: 48 c7 c6 c0 9c cf 8b 44 89 f2 e8 9e ca 45 fd e9 b5 fc ff ff e8 34 ce db fd 90 48 c7 c7 60 9c cf 8b 44 89 f6 e8 c4 bd 9f fd 90 <0f> 0b 90 90 e9 96 fc ff ff e8 15 ce db fd eb 05 e8 0e ce db fd 48 RSP: 0018:ffffc90002df7798 EFLAGS: 00010246 RAX: 860199f51194f500 RBX: 0000000000000000 RCX: ffff8880203c9e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00000000ffffff01 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa6c R12: ffff88805532ca68 R13: ffff888054ad4000 R14: ffffffffffffffe4 R15: ffff888057b20000 FS: 0000000000000000(0000) GS:ffff888125d57000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9593d947b8 CR3: 0000000032d8e000 CR4: 00000000003526f0 Call Trace: flush_space+0x30b/0xcd0 fs/btrfs/space-info.c:861 do_async_reclaim_data_space+0x11c/0x520 fs/btrfs/space-info.c:1394 btrfs_async_reclaim_data_space+0x41/0x90 fs/btrfs/space-info.c:1458 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245