Where's the culprit?

[Dave Germiquet]

Is there a dmesg that you can go back to?

On Sun, Sep 4, 2011 at 7:33 PM, Peter King <peter.king.1-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
> Twice today I've had mysterious lockups on a computer that has generally
> run pretty well. I outfitted it with a new gigabit ethernet card that uses
> the e1000 driver, and set it up yesterday. This morning I found it locked
> up completely; the last log entries were a MARK around 1:00am (figures). No
> other clues. Hmm. I went to the office where the computer is installed, and
> sure enough, couldn't get a console. A reboot seemed to cure the problem.
>
> Except that it didn't. This afternoon I was updating the system via ssh when
> I noticed that it was running very slow. I managed to ssh in from another
> computer (while the compilation was running/frozen), and found that, of all
> things, syslog-ng was using 98% of the CPU according to top. I tried to kill
> it, but it would not respond to sudo /etc/init.d/syslog-ng stop (or restart);
> I tried killing it via its pid but no go there, either. A few minutes later
> the ssh connection was lost entirely.
>
> Must be something in syslog-ng, I thought. So I went back to the office where
> the computer is located, and upon checking the logs this time I found some
> record of a kernel oops. In each case there was no sign of the trigger, but
> the kernel module that seems implicated was e1000. All this under 3.0.3.
>
> Could a kernel oops cause syslog-ng to go haywire? I can replace the ethernet
> card easily enough, but I don't know whether I'm barking up the wrong tree and
> should instead be looking at problems with syslog-ng instead.
>
> Any ideas/suggestions/advice would be welcome. The system runs gentoo, and is
> an old Athlon64.
>
> --
> Peter King                              peter.king-H217xnMUJC0sA/PxXw9srA at public.gmane.org
> Department of Philosophy
> 170 St. George Street #521
> The University of Toronto                   (416)-978-4951 ofc
> Toronto, ON  M5R 2M8
>       CANADA
>
> http://individual.utoronto.ca/pking/
>
> =========================================================================
> GPG keyID 0x7587EC42 (2B14 A355 46BC 2A16 D0BC  36F5 1FE6 D32A 7587 EC42)
> gpg --keyserver pgp.mit.edu --recv-keys 7587EC42
>



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Dave Germiquet
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