[dpdk-dev] mutli process C/S model example init failed on xen dom0 with dpdk-16.07 rc2 package

Thomas Monjalon thomas.monjalon at 6wind.com
Mon Jul 18 15:34:58 CEST 2016

2016-07-18 14:15, Sergio Gonzalez Monroy:
> On 18/07/2016 12:49, Olivier Matz wrote:
> > On 07/18/2016 01:33 PM, Sergio Gonzalez Monroy wrote:
> >> On 12/07/2016 12:30, Olivier MATZ wrote:
> >>> I think we cannot expect that memory is initialized at 0 when using
> >>> Xen dom0. If I add the following (dirty) patch, I don't see a crash
> >>> anymore:
> >> I don't have a Xen system available right now, but I'm not sure I follow
> >> here.
> >> Are you saying that when we allocate pages/hugepages from Xen they are
> >> not zeroed?
> > I did not check it, but from the tests I've done, I suppose they're not.
> If that is the case then I would suggest to zero all memory on EAL init 
> (only for Xen) so
> all memory is zeroed after init for both Linux and Xen.
> What do you think about that?

It is an idea.
It is probable that you won't have any answer as the Xen support is
Feel free to make a patch to try fixing it or we can remove this
whole dead code.

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