Ubuntu
linux package

  1. Bug #1413540
  2. Comment #12

Comment 12 for bug 1413540

Revision history for this message
Chris J Arges (arges) wrote : Re: qemu-kvm package enables KSM on VMs

@serge-hallyn:

First step is to debug this issue and see if its a reasonable fix. If that's possible then we should leave qemu alone.

Second if we want to disable KSM for nested VMs relying on a 'QEMU' cpu isn't sufficient if someone uses a different -cpu flag. We could do:
grep -q "Booting paravirtualized kernel on KVM" /var/log/kern.log && echo 0 > /sys/kernel/mm/ksm/run
Or use tools like virt-what.

Regardless I'll work on step 1.