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From: =?ISO-8859-1?Q?Eirik_=D8verby?= <ltning@anduin.net>
Date: Sat, 14 Aug 2004 12:17:31 +0200
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Subject: How to find the cause of a hang
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Hi all,

I'm currently experiencing frequent (about once per week) hangs of a 
server that is about 1500 kilometers away from me. I have a serial 
cable on the box, and using minicom on the neighbor box I am now in the 
kernel debugger - but I'm at a complete loss as to what to do to figure 
out what is, in fact, wrong.

Calling panic or boot doesn't work - it just stops at "syncing 
disks..." and never actually reboots. I suspect something fishy going 
on with disk I/O, but I can't be certain of that.
The box responds to ping - until I call panic or boot - but no other 
services are working.

What can I do? I'm now at the db> prompt ... Help :)

/Eirik