Hitting pause/break resets machine instead of going into kdb

[Keith Owens]

On Wed, 21 Jan 2004 09:51:46 -0600, 
jansen <jansen at astro.wisc.edu> wrote:
>I'm trying to debug a system hang I've been seeing on some of
>our machines.  I'm running 2.4.20-19.8.XFS1.3.0smp which has
>kdb 4.3 built into it and "cat /proc/sys/kernel/kdb" returns "1",
>but when I hit the Pause/Break key it resets the machine rather
>than going into kdb.  I'm  hitting the Pause/Break key at the
>login prompt in virtual terminal 1 (X is not running).  Any
>pointers would be appreciated.

Hmm, debug the debugger time ...

Boot with command line option "kdb=early".  At the kdb prompt, type

  set KDBDEBUG=0xffff
  set LINES 2000
  go

After boot has completed, try to enter kdb.  Record the complete trace[*]
and mail it to the list.

[*] You will probably need a serial console to capture the kdb trace.

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