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Re: Custom core file
- From: Jan Kratochvil <jan dot kratochvil at redhat dot com>
- To: Nikolay Martyanov <nmartyanov at ptsecurity dot com>
- Cc: gdb at sourceware dot org
- Date: Wed, 28 Sep 2016 16:58:50 +0200
- Subject: Re: Custom core file
- Authentication-results: sourceware.org; auth=none
- References: <firstname.lastname@example.org>
On Wed, 28 Sep 2016 15:31:12 +0200, Nikolay Martyanov wrote:
> I have a self-written bare-metal hypervisor for x86 arch and I'd like to
> perform postmortem debugging of it's core (not VM, hypervisor itself!).
> So the idea is to save physical memory state and later use GDB to interpret
I still do not understand what is the goal.
"not VM, hypervisor itself!" would say that running "/usr/bin/gcore "+getpid()
on the hypervisor process would do the job.
But then "the idea is to save physical memory state" would suggest me you want
to dump the guest VM - like what guest kdump does or what is in guest Linux
kernel /proc/kcore (where it is without the physical memory).