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Re: [Xen-devel] [PATCH v2 2/2] xen/m2p: use GNTTABOP_unmap_and_replace to reinstate the original mapping



On Tue, 2013-07-23 at 15:48 +0100, Alex Bligh wrote:
> 
> --On 23 July 2013 15:23:16 +0100 Ian Campbell <ian.campbell@xxxxxxxxxx> 
> wrote:
> 
> > but I can also easily
> > believe you aren't seeing it, you'd need a heavily stressed and/or
> > flakey network and a big dollop of bad luck...
> 
> We appear to have a healthy supply of one or the other ...

The NFS variant is a little easier to trigger because you also have
retransmits at the RPC layer. The pure TCP retransmit issue is harder to
hit.

Ian.



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