Re: [Xen-devel] [Q] domU boot time debugging using xen-gdbserver

To:	"pradeep singh rautela" <rautelap@xxxxxxxxx>
Subject:	Re: [Xen-devel] [Q] domU boot time debugging using xen-gdbserver
From:	"Kip Macy" <kip.macy@xxxxxxxxx>
Date:	Mon, 22 Oct 2007 22:15:14 -0700
Cc:	xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date:	Mon, 22 Oct 2007 22:15:50 -0700
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On 9/5/07, pradeep singh rautela <rautelap@xxxxxxxxx> wrote:
> Hi All,
>
> I setup a gdb debugging environment for domU correctly using the
> instructions in tools/debugger/* .
> The debugging is useful when the domU is up and running.
>
> I want to trace the startup execution flow of the domU itself. Can
> this be done using the xen-gdbserver somehow?

Yes. When you create the domain, start it off as paused, attach, then
continue. It should go without saying, but you'll have to compile the
kernel with frame pointers which is not the default on Linux.

> OTOH, can i debug a HVM guest[a normal linux kernel in this case]
> using the xen-gdbserver?

Yes.

 -Kip

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Re: [Xen-devel] [Q] domU boot time debugging using xen-gdbserver