Ubuntu 18.10 (Cosmic Cuttlefish) has reached end of life, so this bug
will not be fixed for that specific release.
** Changed in: linux (Ubuntu Cosmic)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1778486
Title:
x86/kvm: fix LAPIC timer drift when guest uses periodic mode
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Cosmic:
Won't Fix
Bug description:
== SRU Justification ==
This patch fixes a regression introduced by mainline commit
8003c9ae204e in v4.10. Without this new patch, OpenBSD guests encounter
timing issues when running under bionic kernel.
See also:
https://www.spinics.net/lists/kvm/msg161311.html
== Fix ==
d8f2f498d9ed ("x86/kvm: fix LAPIC timer drift when guest uses periodic mode")
== Regression Potential ==
Low. This fixes a current regression.
== Test Case ==
A test kernel was built with this patch and tested by the original bug
reporter.
The bug reporter states the test kernel resolved the bug.
OpenBSD guests encounter timing issues when running under bionic kernel.
This issue is actually present since 4.10 and is fixed by:
https://patchwork.kernel.org/patch/10411125/
See also
https://www.spinics.net/lists/kvm/msg161311.html
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