Re: [PATCH 0/3] Introduce a light-weight queue close feature

From: jianchao.wang
Date: Wed Sep 05 2018 - 21:34:45 EST


Hi Bart

On 09/05/2018 11:48 PM, Bart Van Assche wrote:
>> The 3rd patch apply the queue close in nvme-pci to avoid the IO hang
>> issue above.
> Hello Jianchao,
>
> Is this patch series based on a theoretical concern or rather on something
> you ran into? In the latter case, can you explain which scenario makes it
> likely on your setup to encounter an NVMe timeout?

It is a theoretical concern. But I think it is very obvious.
It could be very easy to reproduce if simulate IO timeout in software.

Thanks
Jianchao