From mboxrd@z Thu Jan 1 00:00:00 1970 From: jianchao.w.wang@oracle.com (jianchao.wang) Date: Thu, 6 Sep 2018 09:35:09 +0800 Subject: [PATCH 0/3] Introduce a light-weight queue close feature In-Reply-To: <1536162485.11534.3.camel@acm.org> References: <1536120586-3378-1-git-send-email-jianchao.w.wang@oracle.com> <1536162485.11534.3.camel@acm.org> Message-ID: 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