[CentOS] Panic / EL6 / KVM / kernel-2.6.32-754.2.1.el6.x86_64

Thu Aug 30 08:54:08 UTC 2018
isdtor <isdtor at gmail.com>

Leon Fauster via CentOS writes:
> Since the update from kernel-2.6.32-754.2.1.el6.x86_64 
> to kernel-2.6.32-754.3.5.el6.x86_64 I can not boot my 
> KVM guests anymore!? The workstation panics immediately! 
> I would not have expected this behavior now (last phase of OS). 
> It was very robust until now (Optiplex Workstation). I see some KVM 
> related lines in the changelog.diff. Before swimming upstream:
> Does some one have problems related to KVM with kernel-2.6.32-754.3.5.el6.x86_64 ??

Yes, the exact same thing happened here, and I suspect it is related to older cpus that don't get any Spectre/Meltdown updates.

IBM x3250
Intel(R) Xeon(R) CPU           E3110  @ 3.00GHz

This is a dual-core cpu of similar vintage to yours (can we have a model #?), pre-2010.

There goes a cheap and reliable VM dev machine :-/