Re: Random server reboot after update to CentOS 5.3

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On Thu, May 21, 2009 at 11:13 AM, Peter Hopfgartner
<peter.hopfgartner@xxxxxxxxxx> wrote:
>>> We upgraded a Dell Poweredge PE 1950 Server the 8th of May. Since then
>>> the server rebooted 3 times without external cause (it is located in a
>>> server farm with redundant power supply etc.). Looking at the servers
>>> monitoring infrastructure with Dell's own OpenManage tools, I  get
>>> strange errors:
>>>
>>> The server runs the 64 bit flavor of CentOS hosting some XEN virtual
>>> machines and some PostgreSQL and MySQL databases. It run without any
>>> issues with CentOS 5.1 and 5.2.
>>>
>>> I interpreted these issues as some kernel/software related problem, but
>>> do not know how to make a more accurate diagnosis of the problem.
<snip>
> Indeed, since the only major thing that changed was an yum update
> passing from 52. to 5.3, this is what I would guess, too. But my craft
> stops here.

It would have been helpful, if the error message told you which system
software.  :-)   The Upgrade from 5.2 to 5.2 seems to have been
problematic for some people on this list.  When you did the Upgrade,
did you follow this sequence, per the CentOS 5.3 Release Notes?
yum clean all && yum update glibc\* && yum update
If not, that may or may not have anything to do with the reboots and
error messages you have received.
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