Random reboots

[Nate Eldredge]

On Sun, 16 Dec 2007, Jordi Espasa Clofent wrote:

> Hi all,
>
> I've a couple of this machines [1] in a prduction environment. I suffer 
> random reboots without any clear reason.
>
> A possible power failure it's a discarded point: I use a switched rack PDU 
> and anything is showed by the logs. Moreover, I'm talking about datacenter 
> environment, so there're a lot of redundant UPSs too.
>
> So, I tend to think it should be a hard/soft conflict, but when I check the 
> dmseg and others logs after a random reboot, all appears completely normal. I 
> know that a kernel dump will be great help, but this boxes has a 4/8GB of 
> RAM, and their /swap is lesser.

That would be especially helpful, since from this information we don't 
know whether the cause is a kernel panic or a hardware problem.  Is your 
kernel configured to reboot automatically on panic?  Also, are you by any 
chance using the watchdog?

-- 
Nate Eldredge
nge at cs.hmc.edu