Re: question on a kernal "uhhuh" message

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Alain Spineux wrote:
On Mon, Aug 25, 2008 at 10:47 PM, Paul Newell <pnewell@xxxxxxxxxx> wrote:
While running a long "yum update", I got the following message in the
middle:

  (367/406): cscope-15.6-2.fc9.i386.rpm                    | 141
  kB     00:01       (368/406): gstreamer-p  86% |  20% |==        |  57
kB/s | 192
  kB     00:12 ETA
  Message from syslogd@chowder at Aug 25 11:55:03 ...
   kernel: Uhhuh. NMI received for unknown reason a1 on CPU 0.

  Message from syslogd@chowder at Aug 25 11:55:03 ...
   kernel: You have some hardware problem, likely on the PCI bus.

  Message from syslogd@chowder at Aug 25 11:55:03 ...
   kernel: Dazed and confused, but trying to continue
  (368/406): gstreamer-plugins-base-0.10.19-2.fc9.i386.rpm | 929
  kB     00:12       (369/406): exempi-2.0.1-1.fc9.i386.rpm
  | 297
  kB     00:03

I am assuming that the second occurrence of "(368/406):
gstreamer-plugins-base-0.10.19.2.fc9.i386.rpm" indicates that it did finish
that rpm given that the rpm_debug_check and Transaction Test seemed to have
passed.

So, I am figuring this is my computer burping somewhere. Even though it is
trying to point me at my PCI bus, I do not know what test / diags I should
be running to find out if there really is a hardware problem and, if so,
where and then how to deal with it.


Any RedHat compatible distribution, has a memory test included in the
first install CD.
Just boot on it, an type memtest or mem86 or memtes86 or something
like that to start the test.
Be carrefull, some VGA adapter share the begining of the memory and
this part of the memory must be
skipped to avoid false error.

Alain:

I installed off a DVD, which should be the same, so my one question before I try this is "at what point to I get it to not do an install/update but to give me a terminal (or single-user window) so I can execute this command. Actually, being new to this, I don't even know if this is something I get a terminal / single-user window for as I don't know how early I am jumping in.

For what it is worth, I don't see any errors in the while process of powering up the machine, but maybe the boot process isn't doing all the tests you are suggesting.

Thanks,
Paul

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