If you see spinlock and other interrupt words in the debug messages it can be a kernel bug. Did you search at <a href="http://bugzilla.redhat.com">bugzilla.redhat.com</a>?<br><br>Best regards<br><br>---------- Forwarded message ----------
<br><span class="gmail_quote">From: <b class="gmail_sendername">Robert Heller</b> <<a href="mailto:heller@deepsoft.com">heller@deepsoft.com</a>><br>Date: Jun 16, 2006 3:14 AM<br>Subject: Re: [WBEL-users] Panic halts in Kernel
<br>To: david <<a href="mailto:david@daku.org">david@daku.org</a>><br>Cc: <a href="mailto:whitebox-users@beau.org">whitebox-users@beau.org</a><br><br></span>At Thu, 15 Jun 2006 16:48:00 -0700 david <<a href="mailto:david@daku.org">
david@daku.org</a>> wrote:<br><br>><br>> Folks<br>><br>> Within the past few weeks, I've been experiencing what I think are panic<br>> halts on my Whitebox Linux 4 machine. (Kernel 2.6.9-23.0.EL) with all
<br>> published YUM updates in place.<br>><br>> My system acts as the gateway between my internal network of machines, and<br>> the cable modem. It performs NAT functions, serves as my mail and web<br>> server, and provides DNS functions for the inside network.
<br>><br>> The symptom I see is that my windows desktops (the inside network) fail to<br>> get access. I go to my linux box, turn on the monitor (which is usually<br>> powered off), and see nothing. I suspect the failure occurred a while ago,
<br>> and by this time the monitor has timed out and gone blank. The keyboard<br>> doesn't do anything; even CTL-ALT-DEL fails. My only option is the hard<br>> reset or power cycling.<br>><br>> In the few situations where the failure occurred while I was watching, I've
<br>> seen comments fly by on the screen with words like "spin lock", and<br>> "interupt ...".<br>><br>> In an attempt to keep my computers working, I modified the Kernel startup<br>> line to include the option
<br>> panic=10<br>> which (according to specs) should reboot after a Kernel Panic with a 10<br>> second delay. It works sometimes, but not always.<br>><br>> I am at a loss to figure out what is wrong, and even what information is
<br>> usable to help diagnose the situation. The computer is an AMD sempron<br>> 3100+, with 256m memory, and 240 G of hard drive, as one logical volume,<br>> split between a 160g and 80g IDE HD. It runs command line functions only;
<br>> X is not installed. Security Linux is off; I am the only one who uses the<br>> computer.<br><br>My only thoughts:<br><br>1) Is the machine getting enough ventilation? Are are all of the fans<br>working well?
<br><br>2) IDE drives are not noted for being super reliable when in continuous<br>use. Maybe one of the drives is dieing.<br><br>3) You could have bad memory or the many might not be totally up to the<br>spec needed for the processor.
<br><br>Look closely at your logs, particularly /var/log/messages Make sure<br>there are no messages about disk errors. Get a copy of memtest86 and<br>test your memory.<br><br>><br>> If you have any ideas, please let me know what additional information you
<br>> might need to help.<br>><br>> BEWILDERED<br>><br>> David<br>><br>> _______________________________________________<br>> Whitebox-users mailing list<br>> <a href="mailto:Whitebox-users@beau.org">
Whitebox-users@beau.org</a><br>> <a href="http://beau.org/mailman/listinfo/whitebox-users">http://beau.org/mailman/listinfo/whitebox-users</a><br>><br>><br><br>--<br>Robert Heller -- 978-544-6933<br>Deepwoods Software -- Linux Installation and Administration
<br><a href="http://www.deepsoft.com/">http://www.deepsoft.com/</a> -- Web Hosting, with CGI and Database<br><a href="mailto:heller@deepsoft.com">heller@deepsoft.com</a> -- Contract Programming: C/C++, Tcl/Tk<br><br>
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