[CentOS] Random server reboot after update to CentOS 5.3

Mon May 25 07:50:28 UTC 2009
Peter Kjellstrom <cap at nsc.liu.se>

On Friday 22 May 2009, Peter Hopfgartner wrote:
...
> Would it make sense to install the kernel from CentOS 5.2? Any
> contraindications?

As others have said, you should still have the 5.2 kernel around. Just change 
the grub.conf and reboot. It makes no sense to start swapping around hardware 
until you've tried to revert the kernel.

That said, we've seen hangs and strange kernel messages on several different 
server platforms (HP DL140g3: NMI-related messages logged, HP DL160g5: hangs 
semi-randomly) with the new 5.3 kernels. All of these problems could be 
worked around by booting with the kernel option "nmi_watchdog=0".

/Peter
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