From: Greg Ungerer <gerg@snapgear.com>
To: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: linux-kernel@vger.kernel.org, Greg Ungerer <gerg@uclinux.org>,
uclinux-dev@uclinux.org
Subject: Re: free_initrd_mem() corrups mm state on m68knommu.
Date: Fri, 18 Sep 2009 09:42:59 +1000 [thread overview]
Message-ID: <4AB2C983.3000808@snapgear.com> (raw)
In-Reply-To: <20090917151908.GW23700@csclub.uwaterloo.ca>
Hi Lennart,
Lennart Sorensen wrote:
> On Thu, Sep 17, 2009 at 05:34:37PM +1000, Greg Ungerer wrote:
>> Hi Lennart,
>>
>> Lennart Sorensen wrote:
>>> On Tue, Sep 15, 2009 at 05:49:59PM -0400, Lennart Sorensen wrote:
...
>>> OK, seems the issue was that setup.c wasn't flagging the initrd memory
>>> range as 'reserve_bootmem' which caused extra memory to be forced into
>>> the mm state when it was later freed. I guess one has to be very careful
>>> with what patches one finds lying around the internet (in this case the
>>> uboot bootargs patch for m68knommu that we found somewhere).
>>>
>>> Seems to work great now, and I finally made sense of how the bootmem
>>> map is passed and what is going where. It all makes sense now.
>> Can you send a patch for it?
>> I can push it to mainline of it looks reasonable.
>
> Well it's a patch ontop of another patch that isn't in mainline.
> The other patch is one that adds support for uboot passing kernel command
> line arguments. Want that one too? We find it to be rather useful.
Sure, send them both.
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: gerg@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
825 Stanley St, FAX: +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia WEB: http://www.SnapGear.com
next prev parent reply other threads:[~2009-09-17 23:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-15 21:49 Lennart Sorensen
2009-09-16 15:45 ` Lennart Sorensen
2009-09-17 7:34 ` Greg Ungerer
2009-09-17 15:19 ` Lennart Sorensen
2009-09-17 23:42 ` Greg Ungerer [this message]
2009-09-18 16:28 ` Lennart Sorensen
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