[CentOS] guest vms crash host systems

Tue Oct 4 18:24:02 UTC 2011
m.roth at 5-cent.us <m.roth at 5-cent.us>

Negative wrote:
> On Tue, Oct 4, 2011 at 1:18 PM, <m.roth at 5-cent.us> wrote:
>> Negative wrote:
>> > On Tue, Oct 4, 2011 at 10:41 AM, <m.roth at 5-cent.us> wrote:
>> >> Brian Mathis wrote:
>> >> > On Mon, Oct 3, 2011 at 10:16 PM, Negative
>> <negativebinomial at gmail.com
>> >
>> >> > wrote:
>> >>>> I built guest vm's one for Windows 7 and one for Windows XP using
>> >>>> the
>> >>>> virtual machine manager on a  just updated to centos 5.7, and they
>> >>>> are both crashing the host machine. They run only  for a few
>> minutes,
>> <snip>
>> >> > Is this new hardware?  Have you run any hardware burn testing (CPU,
>> >> > RAM, etc...) and/or memtest86+ on the RAM?  This sounds like a
>> >> > hardware issue to me.
>> >
>> More and more it sounds like a hardware issue. Hmm, every time X is
>> running, and you say you had one video card fried - how did it fry?
>> Also,
>> is this machine on a good quality surge protector? Have you had a
>> thunderstorm, or power outages recently?
> The vendor told me that the particular video card model (I forget which)
> had some flaw. In any case the fan stopped running, and it heated up. I
> usually use the machine remotely but I was at the console at that moment.
> The monitor started flickering and then went gray.
> The vendor sent a replacement, but I had thrown an old ATI in before it
> arrived. When the crashes occurred now, I finally put in the replacement.
> Same behavior.

Have you examined the m/b and cards *around* where the card fried? Its
heat death may have affected things around it.
> The surge protector is good. I live in NYC and the biggest environmental
> hazard is the cleaning lady, who has in the past tripped the surge
> protector switch.

<g> Do you know the story about the mainframe shop, the racks of tapes,
and the cleaning staff?
> I fear you're right about the hardware. But as far as I can tell
> everything else works fine. I went overboard in buying two quad
> processors -- so I could live with one if that's the problem.

A replacement m/b?