On Fri, Apr 11, 2008 at 3:18 AM, Linux <linuxlist@xxxxxxxxx> wrote:
> On Fri, Apr 11, 2008 at 2:43 AM, William L. Maltby
> <CentOS4Bill@xxxxxxxxxxxx> wrote:
> >
> > On Fri, 2008-04-11 at 02:02 +0300, Linux wrote:
> > > On Fri, Apr 11, 2008 at 1:44 AM, Benjamin Karhan <simon@xxxxxxxxxxx> wrote:
> > > > ] Every 59 minutes (maybe every hour) it reboots without any logs,
> > > > ] without any traces and unfortunately with breaking software raid.
> > > > ] After reboot dmesg does not have any strange entries.
> > > > this really only helps you if you have X11 installed/enabled to begin with...
For the records...
Thanks for your responses and here is feedback:
- ssh root login is limited to certain ip's only...
- reboot is definitely a "cold reboot" but I am not a native english speaker :)
- power surge/temporary failure is not a case, datacenter has
expensive power equipment
- nor cpu heat is a case. I placed an extra thermometer and moved
server to the frond of cold air inlet.
- lmsensors or sensors does not exists.
- I tested with/out crons before. Pretty sure no relation with crons.
- External and internal services were expected to leave some marks.
Did a cronned "ps ax" and checked processes that run before restart,
nothing suspicious.
Consequently:
I had 4 DDR ECC RAM modules each 2 GB paired in 2 different brands.
Each brand functioned well as 4GB total but when all are installed
nightmare begins.
I guess (this time a real guess) I have a problem with my RAM
settings. 8 GB may cause this problem, may be a serious page fault
etc... Without grub parameter "mem=" server boots very slowly and also
responses very slowly.
Maybe I need a new thread title "Server too slow or too unstable with
8 GB RAM" :)
Thanks...
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