On 07/17/2018 04:48 PM, Johnny Hughes wrote: > On 07/17/2018 02:00 AM, Simon Matter wrote: >>> Hi, >>> >>> I have AMD servers running CentOS 6.10 as KVM host and on it guests >>> running CentOS 7.5. >>> >>> Since the latest kernel update on CentOS 6.10, >>> kernel-2.6.32-754.2.1.el6.x86_64, I can't boot the CentOS 7.5 guests with >>> kernel-3.10.0-862.6.3.el7.x86_64 anymore. >>> >>> Reverting CentOS 6.10 host to kernel-2.6.32-754.el6.x86_64 fixes the >>> problem. >>> >>> Screendump of the panic is attached, not very helpful I guess. >> >> I didn't know attachments are stripped by the list. >> >> Here is the bugreport: >> >> https://bugs.centos.org/view.php?id=15067 >> >> My feeling is that the recent Intel fixes/workarounds have broken it here >> for AMD systems :( >> > > I had to set my CPU type to opteron_g3 instead of opteron_g5 for some > machines on an AMD server.
This was the bug I hit ... not your scenario .. but who knows: https://bugzilla.redhat.com/show_bug.cgi?id=1586278
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