[Leaplist] machine got a bit warm ....

[Robin (Bartow FL)]

Subject: [Leaplist] machine got a bit warm ....

> 
> .... I logged in to my network this A.M. to find that my Intel Q6600 
> (Core2-Quad CPU) based box (running FC7 x86_64, runlevel 3) was face 
> down, along w/ my network switch. After much monkey motion getting 
> everything back up & going, I groped through the syslog file on the 
> Q6600 & noticed the following:
> 
> Jan 22 21:17:17 Q6600 mountd[2815]: authenticated unmount request from 
> ATHLONCUBE.CFD.COM:839 for /archive (/archive)
> Jan 22 21:17:18 Q6600 mountd[2815]: authenticated unmount request from 
> ATHLONCUBE.CFD.COM:860 for /home (/home)
> Jan 23 00:52:12 Q6600 restorecond: Reset file context /etc/mtab: 
> user_u:object_r:etc_t:s0->system_u:object_r:etc_runtime_t:s0
> Jan 23 04:41:26 Q6600 kernel: CPU0: Temperature above threshold, cpu 
> clock throttled (total events = 1)
> Jan 23 04:41:26 Q6600 kernel: CPU3: Temperature/speed normal
> Jan 23 04:42:52 Q6600 kernel: CPU1: Temperature above threshold, cpu 
> clock throttled (total events = 1)
> Jan 23 04:42:52 Q6600 kernel: CPU2: Temperature/speed normal
> Jan 23 04:44:19 Q6600 kernel: Machine check events logged
> Jan 23 15:09:52 Q6600 syslogd 1.4.2: restart.
> Jan 23 15:09:52 Q6600 kernel: klogd 1.4.2, log source = /proc/kmsg started.
> Jan 23 15:09:52 Q6600 kernel: Linux version 2.6.22.9-91.fc7 
> (kojibuilder at xenbuilder2.fedora.redhat.com) (gcc version 4.1.2 20070502 
> (Red Hat 4.1.2-12)) #1 SMP Thu Sep 27 20:47:39 EDT 2007
> Jan 23 15:09:52 Q6600 kernel: Command line: ro 
> root=/dev/VolGroup00/LogVol00 rhgb quiet
> 
> The 1st 3 lines are normal/routine events, no problema. The next 5 are 
> interesting :-). The last 4 are from when I got it back up & running 
> this P.M. There was no other output (such as power-down output) in 
> between, which was a bit of a surprise. uname -a shows:
> 
> [root at Q6600:/etc, Wed Jan 23, 04:47 PM] 1026 # uname -a
> Linux Q6600 2.6.22.9-91.fc7 #1 SMP Thu Sep 27 20:47:39 EDT 2007 x86_64 
> x86_64 x86_64 GNU/Linux
> [root at Q6600:/etc, Wed Jan 23, 04:47 PM] 1027 #
> 
> My question is: The syslog file said machine check events logged, but 
> shows nonesuch (other than the 4 lines right above). Where else are 
> these (other ?) machine-check events logged ? TIA ....
> 

"Temperature above threshold"

I remember thinking my wife was ironing.
Then found one of my machines getting hot.
Power supply fan was not turning.
I powered down, opened case and
found hot CPU cooling fins.
After cooling down it started
up just fine.

I replaced the power supply.

In the absence of reliable power,
logs are of little value.