[CentOS] Lockups with kernel-2.6.32-358.0.1.el6.i686

Fri Mar 8 15:51:14 UTC 2013
Gerry Reno <greno at verizon.net>

On 03/08/2013 10:43 AM, m.roth at 5-cent.us wrote:
> Kwan Lowe wrote:
>> On Thu, Mar 7, 2013 at 8:51 PM, Johnny Hughes <johnny at centos.org> wrote:
> <snip>
>> As far as logging goes, any idea what sort of failures could cause
>> such a lockup? I.e., if memory was failing, would the system still be
>> able to log? As the mouse is frozen and kernel sysrq has no effect,
>> I'm still leaning towards hardware but literally everything except the
>> case has been swapped out. (Well.. let me qualify that.. Everything
>> but the 64GB SSD drive has been swapped but it seemed unlikely that a
>> drive failure could cause such a lockup. Incorrect assumption?)
> No ideas... and I've had a number of systems do this, over the last couple
> years, where someone noted it had stopped responding; I go down, and it
> doesn't respond *at* *all* when I plug in a monitor & keyboard, and power
> cycling's the only answer.
> Thinking about it, I believe it's mostly been on our Penguin servers, and
> that co. uses Supermicro m/b's, and we've had h/w problems with them,
> also, and have had several m/b's replaced under warranty.
>       mark

Nearly every time we've had lockup problems it has come down to bad or failing memory.

I've even had memory cause problems where it would pass a quick memtest but ultimately would fail if you left it running
the tests overnight.