[Crash-utility] Re: why gdb backtracing not being used in crash
Rachita Kothiyal wrote:
Hi Dave
I was wondering why in crash we are not using the already existing
bt via the gdb_interface(). I see it being used in case of alpha
and ppc64, but am not sure if it works. Could you please throw some
light on the rationale behind this...
Thanks
Rachita
I could never get it to work, except "sort-of" on alpha. But even
on alpha, it would only go back as far as the first kernel exception
frame, and then would go off into the weeds. I don't know anything
about the ppc64 -- you can ask Haren about that...
As I recall, there was a whole bunch of user environment stuff
that needed to be faked/replicated for it to even come close to
working correctly, i.e., stuff that gdb would be gathering when
running on a user process.
Dave