Capture OOPS
Tony Nelson
tonynelson at georgeanelson.com
Mon Apr 23 14:08:39 UTC 2007
At 4:09 PM +0800 4/23/07, Ed Greshko wrote:
>Gilboa Davara wrote:
>> On Sun, 2007-04-22 at 11:12 -0600, Ashley M. Kirchner wrote:
>>> Seems I've asked this before, but I'll be darned if I can find the
>>> answer somewhere in my archives. I need to capture a kernel OOPS
>>> somehow. I've got a server that seems to be trigger happy and locking
>>> up/crashing once every 24 hours or so. The unfortunate thing is that
>>> I'm not there when it happens to look on the monitor and see if I can
>>> discern anything from there (usually one of the other guys come in
>>> before me and they simply hit the reset button because they don't
>>> understand the gibberish on screen anyway.) So, I need to figure out a
>>> way to capture that OOPS. Since it's not send to syslog, I can't send
>>> it to another machine for logging. What other methods are there of
>>> doing this? This machine doesn't have a serial link that I can link up
>>> to another either. So, anyone?
>>>
>>> -
>>
>> Simple.
>> - Connect the machine to another machine using a NULL serial console.
>> - Add the following parameters to your grub:
>> console=ttyS0 console=ttyS0,57600n8
>> (Where ttyS0 is serial0, 57600 is speed and n8 is 8 bits, no parity)
>> - Run cu [1, uucp] or minicom and log all the output.
>
>I think you missed the first post that pointed out the system has no serial
>port. :-)
>
>I think looking into "netdump" and "netdump-server" may be in order.
Or possibly the netconsole= kernel boot parameter? Sends data over UDP.
--
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' <http://www.georgeanelson.com/>
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