Hello all,
to investigate a system lockup I need to implement kerneldumps on
powerpc. Well, exactly on PowerMacs. The booke should already support
this feature.
Right now I'm at the point where I can dump something, means the
mechanism to be able to get a (core) dump for example via 'call doadump'
in db works. I can restore the dump via savecore.
I took the approach from booke and implemented the necessary functions
for PowerMacs. But here I'm offline.
I do not understand what I want to dump, means which part of the memory.
Once I know what to dump, where do I find the information, which addresses?
How can I get a picture of the memory organization form powermacs?
Is there a pointer available about pmap in the kernel to find out a bit
more on this topic?
What is really needed to be able to run kgdb on a core file to be able
to find where the kernel crashed?
I know the questions are a bit vague, but I need an entry point.
I appreciate any pointer to implement this feature.
Tia,
Andreas
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