[ovs-dev] SIGILL ovs branch-2.12/arm64/DPDK

Yanqin Wei (Arm Technology China) Yanqin.Wei at arm.com
Thu Sep 5 09:37:15 UTC 2019

Thanks James,
I can understand the root cause now.

Best Regards,
Wei Yanqin

From: James Page <james.page at canonical.com>
Sent: Thursday, September 5, 2019 3:42 PM
To: Yanqin Wei (Arm Technology China) <Yanqin.Wei at arm.com>
Cc: Ilya Maximets <i.maximets at samsung.com>; ovs-dev at openvswitch.org
Subject: Re: [ovs-dev] SIGILL ovs branch-2.12/arm64/DPDK

On Thu, Sep 5, 2019 at 8:34 AM Yanqin Wei (Arm Technology China) <Yanqin.Wei at arm.com<mailto:Yanqin.Wei at arm.com>> wrote:
Is it possible a configuration issue for building OVS userspace program , which should not enable crc for xgene cpu?  DPDK library is linked with OVS program during OVS building. It should not import compiling configuration from DPDK, right?

Compiler flags will be generated by the pkg-config provided by DPDK - the CPU flags exceed the features of the xgene CPU.

That said, in the context of compiling a DPDK enabled version of OVS for arm64 for general consumption, having a practical baseline for CPU features that are actually useful to arm64 users is important.

Canonical have some fairly earlier arm64 hardware in the Ubuntu build infrastructure which is probably below the sensible baseline for DPDK support.

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