For this particular case the log files are not needed and/or applicable.
After discussing in #stable-kernel I set it to confirmed.
** Changed in: linux (Ubuntu Bionic)
Status: New => Confirmed
** Changed in: linux (Ubuntu Cosmic)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1788098
Title:
Avoid migration issues with aligned 2MB THB
Status in linux package in Ubuntu:
Confirmed
Status in qemu package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Confirmed
Status in linux source package in Cosmic:
Confirmed
Bug description:
------- Comment From [email protected] 2018-08-20 17:12 EDT-------
Hi, in some environments it was observed that this qemu patch to enable THP
made it more likely to hit guest migration issues, however the following kernel
patch resolves those migration issues:
https://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc.git/commit/?h=kvm-ppc-next&id=c066fafc595eef5ae3c83ae3a8305956b8c3ef15
KVM: PPC: Book3S HV: Use correct pagesize in kvm_unmap_radix()
Once merged upstream, it would be good to include that change as well
to avoid potential migration problems. Should I open a new bug for
that or is it better to track here?
Note Paelzer: I have not seen related migration issues myself, but it
seems reasonable and confirmed by IBM.
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