[Starlingx-discuss] Patch to support different address witdhs in DPDK
Cordoba Malibran, Erich
erich.cordoba.malibran at intel.com
Wed Oct 10 20:12:59 UTC 2018
This bug was failing (simplex in the baremetal case) because the
/etc/init.d/compute_config was unable to configure the compute causing
a "degraded" state and nova-compute to be disabled.
While running the compute_config script a lot of kernel messages like
DMAR: intel_iommu_map: iommu width (39) is not sufficient for the
mapped address (7fbdc0000000)
It turns out that this is a known issue in DPDK and a patch is
available. I applied this patch into the openvswitch package and
then we were able to solve the problem.
My question is, what would be the best way to handle this patch?
- Should we patch our openvswitch package? : we get openvswitch from
centos and that version doesn't include this patch. We can apply this
patch here and wait for an upgrade in upstream to remove it.
- Should be look for a newer openvswitch version? We could look for a
newer version but this one won't be a centos standard version.
What do you think?
Thanks in advance
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