Hello,
I would like to understand the meaning of the following in the
kdb output:
firstly, when would kdb normally show unknown in the bt trace? I
see a lot of output, but with no symbol information. The
addresses are not in the 0xc**** range.
Is it because of the fact that the addresses are not in the
kernel address space range that it gives this unknown for
everything? or is it because something is not compiled with -g?
But for some other processes, when I do a btp pid, I do see
output with symbol information even when those addresses do not
fall in the 0xc**** range. What does the unknown in kdb output
imply?
second is, what does the thread column mean?
We are seeing consistent oops on an smp system, and while trying
to debug the problem with kdb, I get to a sensible kdb output of
the current process on one processor, but for the other
processor, the faulting code does not show any symbol
information, and gives unknown all throughout. So, though I can
see which process it is ( actually a daemon process among a
group of daemons ), I am not able to see which portion of code
is faulting for that processor. system drops into kdb and shows
oops for that processor - but oops shows only register
information. Or is there some other way, I can get more
information for that process from this limited information in
kdb?
finally, what do the runs for the various processes mean? that
they are in the run queue?
any clarifications would be very helpful.
TIA
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