debugging kdb

[Keith Owens]

On Tue, 28 Dec 2004 07:17:12 +0200, 
Garik E <kiragon at gmail.com> wrote:
>I've adopted kdb-v4.3 i686 to work with redhat enterprise linux kernel.
>In general it works fine, but sometimes, on SMP architectures it
>enters kdb prompt.
>Backtracing shows `default_idle' on top of each stack and `go' command
>returns to program.
>What can cause it and how can I trace this thing ?

kdb prints the reason it was entered, what does it say?  If that does
not help, drop into kdb and

  set LINES 2000
  set KDBDEBUG 0xffff
  go

When it drops into kdb you will get lots of kdb debugging information.

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