linux-kernel - Re: [2.6.27] early exception

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Message-ID: <68676e00809041351x5949e4f3xdc97737a56bfd4cd@mail.gmail.com>
Date:	Thu, 4 Sep 2008 22:51:14 +0200
From:	"Luca Tettamanti" <kronos.it@...il.com>
To:	"Peter Zijlstra" <peterz@...radead.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com
Subject: Re: [2.6.27] early exception - lockdep related?

On Thu, Sep 4, 2008 at 4:25 PM, Peter Zijlstra <peterz@...radead.org> wrote:
> Sadly your config just boots, albeit not to userspace due to missing
> drivers.

Yes, I managed to boot it with qemu... I tried kgdb - without luck -
kernel dies too early.
I also managed to get a stack trace :D

http://img151.imageshack.us/my.php?image=tracedm1.jpg

It seems that lockdep is an innocent bystander... the kernel died with
panic() in __reserve_early, and then took another exception while
printing the panic (I guess).
Will add further debug stuff to see wtf is going on.

Luca
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