Re: [Crash-utility] How do debug the kdump kernel using a Xen dump-core file?
----- Original Message -----
'xm dump-core' can appearently create the required core file while the
kdump kernel runs. Just crash can appearently not "switch over".
What should I modify in crash to let it work from a different "offset",
in other words: the memory reserved for the kdump kernel?
Olaf
Ah, I misunderstood. So you are running an HVM guest which has kdump
enabled, the guest has crashed, and now you want to look at the guest's
kdump kernel.
Anyway, like I mentioned in my last message, you *may* be able to coerce
it into running by adding the --machdep physbase=<physical-address> option.
And that would only be possible if it's an x86_64 guest. I'm not sure
what the <physical-address> value should be in that case, so you would
have to experiment.
Normally people don't have much interest in debugging the kdump kernel...
Dave