Re: Random system crashes

On Thu, Apr 26, 2018 at 10:29:41AM -0700, Michael Eager wrote:
> On 04/26/2018 10:03 AM, Dan Ritter wrote:
> > On Thu, Apr 26, 2018 at 09:42:42AM -0700, Michael Eager wrote:
> > > I have a server which periodically freezes and becomes unresponsive.
> > > The system is AMD FX-8320, 32Gb, CentOS 7, kernel-4.15.
> > > 
> > > There is nothing in the system log which indicates any problem.
> > > The freezes appear to be random and happen when the system is
> > > heavily loaded and when it is idle.  Even when heavily loaded,
> > > system temperature seems reasonable.
> > 
> > Does it come back without intervention after the freeze, or does
> > it die and need a reboot or power-cycle?
> 
> Never recovers.  I have to reset or power-cycle.

If it only happened under heavy load, I would guess a power
supply problem.

Sadly, I think you have a serious hardware fault in the motherboard or
CPU. Sorry.

Diagnosis: let it run for N hours with a CPU exerciser like
stress-ng, set to thrash the CPU but not memory or disk.

Semi-good news: you can replace both of them for around $250 at
NewEgg. 

-dsr-