Re: [libvirt] [PATCH 4/4] qemu: Fix qemuProcessInitCpuAffinity()
On Fri, 2019-05-31 at 17:22 +0200, Andrea Bolognani wrote:
Commit f136b83139c6 made some changes in the way we set CPU
affinity for QEMU processes, and while doing so unfortunately
also introduced a logic bug in that it tried to use a NUMA node
map where a CPU map was expected.
Correction: the logic bug was present even in the original
implementation of the feature, introduced back in 2012 (!) with
commit 0f8e7ae33ace; setting the CPU affinity earlier in the guest
startup process, as we're doing since a few releases back, has
probably just made the mistake easier to spot.
Or maybe nobody was using it on POWER 8 and that's why we never
realized something was wrong :)
--
Andrea Bolognani / Red Hat / Virtualization