From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [dpdk-stable] [PATCH v3] mem: Fix anonymous mapping on Power9. Date: Sun, 18 Nov 2018 14:41:07 +0100 Message-ID: <1547076.mggVMYh6Ii@xps> References: <20181116173538.5321-1-dwilder@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: stable@dpdk.org, dev@dpdk.org, chaozhu@linux.vnet.ibm.com To: David Wilder Return-path: In-Reply-To: <20181116173538.5321-1-dwilder@us.ibm.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 > Reviewed-by: Pradeep Satyanarayana Applied, thanks Note: Cc stable@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.