[dpdk-dev] [PATCH v2 1/3] mem: fix hugepage mapping error messages

[Thomas Monjalon]

2016-10-04 20:07, Sergio Gonzalez Monroy:
> On 04/10/2016 18:17, Jean Tourrilhes wrote:
> > Running secondary is tricky due to the need to map the memory region
> > at the right place in VM, which is whatever primary has chosen. If the
> > base address for primary happens to by already mapped in the
> > secondary, we will hit precisely these error messages (depending if we
> > fail on the config region or the hugepages). This is why there is
> > already a comment about ASLR.
> >
> > The issue is that in most cases, remapping does not happen and "errno"
> > is not changed and therefore stale. In our case, we got a "permission
> > denied", which sent us down the wrong track. It's such a common error
> > for secondary that I feel this error message should be unambiguous and
> > helpful.
> > The call to close was also moved because close() may override errno.
> >
> > Signed-off-by: Jean Tourrilhes <jt at labs.hpe.com>
> > ---
> >   lib/librte_eal/linuxapp/eal/eal.c        | 14 +++++++++++---
> >   lib/librte_eal/linuxapp/eal/eal_memory.c | 16 ++++++++++++----
> >   2 files changed, 23 insertions(+), 7 deletions(-)
> 
> Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy at intel.com>

Applied, thanks
A rebase was necessary because of this patch: http://dpdk.org/commit/c00ae961
Please check everything is OK.