[dpdk-dev] [PATCH 4/6] vhost: workaround stale vring base

[Yuanhan Liu]

On Mon, May 09, 2016 at 04:25:38PM +0000, Xie, Huawei wrote:
> On 5/7/2016 2:36 PM, Yuanhan Liu wrote:
> > However, Michael claims some concerns: he made a good point: a crash
> > is happening means some memory is corrupted, and it could be the virtio
> > memory being corrupted. In such case, nothing will work without the
> > reset.
> 
> I don't get this point. What is the scenario?

It's not a specific scenario, just a hypothetic one.

> For the crash of virtio frontend driver, i remember we discussed before,
> we have no good recipe but some workaround. The user space frontend
> driver crashes, and its memory is reallocated to other instances, but
> vhost is still writing to that memory. However this has nothing to do
> with vhost reconnect.

Hmm, yes, seems like another good point to me. This patch seems like 
a fix but not a workaround then :)

	--yliu