Re: Yet another KPTI regression with 4.14.x series in a VM

From: Thomas Gleixner
Date: Fri Jan 12 2018 - 13:51:58 EST


On Fri, 12 Jan 2018, Laura Abbott wrote:
> Fedora got a bug report on 4.14.11 of a panic when booting a
> Fedora guest in a CentOS 6 VM, not reproducible with nopti.
> The issue is still present as of 4.14.13 as well. The only
> report is a panic screenshot
> https://bugzilla.redhat.com/show_bug.cgi?id=1532458
>
> I've lost track of all the fixes that have been flying around,
> is this a new issue or has a fix not yet made it to stable?

Hmm. Looks kinda familiar, but that has been fixed I think even before
4.4.11. Could you please ask the reported to provide a full console log via
the VM "serial console" ?

Thanks,

tglx