On Fri, May 26, 2017 at 03:31:33PM -0400, [email protected] wrote:
> Looks like the culprit is very likely d85b758f72b0 "virtio_net: fix
> support for small rings".
> 
> After that patch, my NFS server VM stops responding to packets after a
> few minutes of testing.  Before that patch, my server keeps working.
> 
> --b.


So I think I know what caused this: looks like some hypervisors
aren't prepared to deal with a situation where packet size
becomes very small.

But which hypervisors exactly? I'd like to know in order to detect these
and decide whether I blacklist bad ones or whitelist known-good ones.

Thanks!

-- 
MST
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