Re: [PATCH 2/2] blk-mq: ensure a q_usage_counter reference is held when splitting bios

Christoph Hellwig
2024-01-11T16:18:55Z

On Thu, Jan 11, 2024 at 09:17:41AM -0700, Jens Axboe wrote:
> Don't think it's .config related, hit it on my test box and then in my
> vm as well. It's likely due to batched allocations, would be my guess.
> I can start/halt the vm fine with just a boot, but if I do:
>
> $ ~/git/fio/t/io_uring -p1 -d128 -b512 -s32 -c32 -F1 -B1 -R0 -X1 -P1 /dev/nvme0n1
>
> for just a brief moment, nvme0 will hang on shutdown.

Thanks, I'll look into it.