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From: "Sanford, Robert" <rsanford@akamai.com>
To: "users@dpdk.org" <users@dpdk.org>
Subject: meson options - build vs target machine cpuflags question
Date: Thu, 10 Mar 2022 14:46:36 +0000
Message-ID: <165CAE28-2A3E-4960-8E57-2EB9A19024DB@akamai.com> (raw)

Hello All,

We build a DPDK 21.05 app on Intel x86 machines with RDSEED in cpuflags, and may run it on machines *without* RDSEED.
This results in a fatal error ...
ERROR: This system does not support "RDSEED".
Please check that RTE_MACHINE is set correctly.
EAL: FATAL: unsupported cpu type.

I try adding -Dplatform=haswell when running meson, (because gcc man page indicates that haswell is last arch w/o RDSEED) but get the same result.
Until we resolve it, our workaround is changing the error-out in rte_cpu_is_supported() to just print a warning and continue.
We don't have direct access to automated build machines, we go through change request processes, and so we can't rapidly try too many things.

Is there a better meson option, such as machine=haswell, or something else that will work?

Thanks in advance,
Robert Sanford


             reply	other threads:[~2022-03-10 14:46 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-10 14:46 Sanford, Robert [this message]
2022-03-10 22:54 ` Dan Gora
2022-03-10 22:58   ` Dan Gora
2022-03-10 23:39     ` Sanford, Robert
2022-03-11  0:00       ` Dan Gora
2022-03-11  1:18   ` Stephen Hemminger
2022-03-11  2:45     ` Dan Gora
2022-03-11  3:01       ` Stephen Hemminger

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