[Expired for qemu (Ubuntu) because there has been no activity for 60
days.]
** Changed in: qemu (Ubuntu)
Status: Incomplete => Expired
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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** Tags added: bjf-tracking
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https://bugs.launchpad.net/bugs/503138
Title:
Lucid & Natty, KVM, After kernel message hrtimer: interrupt too
slow the SMP kvm guest
Thanks Arie for providing your configuration fix to the issue for anyone
else being affected - that will be really helpful.
In that sense it is much more like bug 1346917 which was about KSM.
Since the fix for that old bug they at least stopped being migrated around, but
I can see how a lot of
This happened because guest used lots of memory on NUMA machine. The KSM
might merge similar memory pages of different VMs, sitting on different
NUMA memory regions, causing the affected processes to crawl.
Disabled KSM merge_across_nodes:
echo 2 > /sys/kernel/mm/ksm/run && sleep 300 && cat
Hi Arie,
I saw you also posting on some other old bugs with the same symptom (e.g.
1346917).
And that exactly is the problem with this issue - the message only represents
the symptom but not the root cause. Fixing the symptom makes no sense, because
if your IRQ delivery is stalled then it is
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