[dpdk-dev] [dpdk-stable] [PATCH v3] mem: Fix anonymous mapping on Power9.

Kevin Traynor ktraynor at redhat.com
Tue Nov 27 11:50:21 CET 2018


On 11/18/2018 01:41 PM, Thomas Monjalon wrote:
> 16/11/2018 18:35, David Wilder:
>> Removed the use of MAP_HUGETLB for anonymous mapping on ppc64.  The
>> MAP_HUGETLB had previously been added to workaround issues on IBM Power8
>> systems when mapping /dev/zero (see: commit
>> 284ae3e9ff9a92575c28c858efd2c85c8de6d440).  In the current code the
>> MAP_HUGETLB flag will cause the anonymous mapping to fail on Power9.
>> Note, Power8 is currently failing to correctly mmap Hugepages, with and
>> without this change.
>>
>> Signed-off-by: David Wilder <dwilder at us.ibm.com>
>> Reviewed-by: Pradeep Satyanarayana <pradeep at us.ibm.com>
> 
> Applied, thanks
> 
> Note: Cc stable at dpdk.org does not make sense in this context.
> Backporting this patch to 17.11 would be a mistake,
> and 17.08 is probably not in Power9 scope.
> 

I think 17.08 is a typo for 18.08? Anyway, I won't backport to 18.08
unless I hear something further.

> 
> 



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