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From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Nikolay Martyanov <nmartyanov@ptsecurity.com>
Cc: gdb@sourceware.org
Subject: Re: Custom core file
Date: Wed, 28 Sep 2016 14:58:00 -0000	[thread overview]
Message-ID: <20160928145850.GA20365@host1.jankratochvil.net> (raw)
In-Reply-To: <fb396495-657e-1429-d773-f302171ae3b7@ptsecurity.com>

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
> it.

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).


Jan


  parent reply	other threads:[~2016-09-28 14:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-28 13:31 Nikolay Martyanov
2016-09-28 14:28 ` Duane Ellis
2016-09-28 14:58 ` Jan Kratochvil [this message]
2016-09-28 15:18   ` Nikolay Martyanov
2016-09-28 15:33     ` Jan Kratochvil
2016-09-28 16:27       ` Nikolay Martyanov
2016-09-28 15:02 ` Nikolay Martyanov
2016-09-28 15:31 duane
2016-09-28 16:37 ` Nikolay Martyanov
2016-09-28 19:22 ` Nikolay Martyanov

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