From mboxrd@z Thu Jan  1 00:00:00 1970
From: will.deacon@arm.com (Will Deacon)
Date: Tue, 16 Oct 2012 17:32:26 +0100
Subject: [RESEND PATCH 2/2] ARM: kexec: Check segment memory addresses
In-Reply-To: <20121016161020.GA1613@blackmetal.musicnaut.iki.fi>
References: <1348157018-31059-1-git-send-email-will.deacon@arm.com>
 <1348157018-31059-2-git-send-email-will.deacon@arm.com>
 <20121016161020.GA1613@blackmetal.musicnaut.iki.fi>
Message-ID: <20121016163226.GG23979@mudshark.cambridge.arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Tue, Oct 16, 2012 at 05:10:21PM +0100, Aaro Koskinen wrote:
> Hi,

Hi Aaro,

> On Thu, Sep 20, 2012 at 05:03:38PM +0100, Will Deacon wrote:
> > From: Matthew Leach <matthew.leach@arm.com>
> > 
> > Ensure that the memory regions that are set within the segments
> > correspond to physical contiguous memory regions.
> 
> This patch seems to break kexec for me in 3.7-rc1 (commit
> c564df4db85aac8d1d65a56176a0a25f46138064, bisected).
> 
> kexec -l fails with the following output:
> 
> kexec_load failed: Invalid argument
> entry       = 0x80008000 flags = 280000
> nr_segments = 2
> segment[0].buf   = 0xc48008
> segment[0].bufsz = 230
> segment[0].mem   = 0x80001000
> segment[0].memsz = 1000
> segment[1].buf   = 0xb6a9b008
> segment[1].bufsz = 3a4668
> segment[1].mem   = 0x80008000
> segment[1].memsz = 3a5000
> Could not load the kexec kernel: n800-zImage
> 
> The board is OMAP2420 / Nokia N800.

Interesting, it sounds like kexec thinks that you don't have contiguous
memory from 0x80008000 to 0x803ad000. Can you provide some more information
about your physical memory map please?

Cheers,

Will