vm won't start if host cpus are different steppings
Bug #1093292 reported by
Peter Hurley
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
qemu-kvm (Ubuntu) |
Confirmed
|
Medium
|
Unassigned | ||
virt-manager (Ubuntu) |
Triaged
|
Medium
|
Unassigned |
Bug Description
On a machine with multiple processors, different steppings may have different cpu features. So when the 'host cpu configuration' is copied, required cpu features may not be supported on the other cpu's cores.
On the test machine, dual Intel Xeon E5420s have steppings 6 and 10. Stepping 6 does not support 'xsave' (/proc/cpuinfo attached).
Perhaps the host cpu configuration should be per-physical id and vcpus pinned to their respective host?
Changed in qemu-kvm (Ubuntu): | |
status: | New → Confirmed |
importance: | Undecided → Medium |
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