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dl580
2008 Oct 26
1
Upgrading to Centos 4.7 on HP DL580G5 caused problems
As part of patching a cluster which has two DL580G5 login nodes ( 4X
Intel 7300 DC cpus) & 24 HP DL160G5 compute nodes ( 2x Intel 5272 DC
cpus) we encountered an issue that I would like to record:
I upgraded both DL580s to Centos 4.7 via yum but only rebooted one
initially- this node, previously bomb-proof, started to hang randomly
with no obvious messages logged to help with diagnosis.
In the dmessage output I found this sequence never seem before
Uhhuh. NMI received for unknown reason 20.
Dazed and confused,...