Ubuntu
linux package

  1. Focal (20.04)
  2. Bug #1837810
  3. Comment #4

Comment 4 for bug 1837810

Revision history for this message
Matthew Ruffell (mruffell) wrote : Re: qemu instance gets paused with error: kvm run failed Bad address

Hello @pooja-9, @kphatak-pf9 and @vlee,

You wouldn't happen to have Kernel Samepage Merging (KSM) enabled on your compute nodes would you?

You can check by looking at the value of:

$ cat /sys/kernel/mm/ksm/run

If it is 1, your nodes have it enabled, and if it is 0 or "missing", you don't have it on.

We have just hit the problem, and I think I have found a fix for it. I will fix the 4.15 kernel once I have analysed the problem a bit more.