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Date: Fri, 17 Feb 2012 11:25:27 +0530
From: "Suzuki K. Poulose" <suzuki@in.ibm.com>
MIME-Version: 1.0
Subject: Re: [PATCH v1 0/4][makedumpfile] vmalloc translation support for PPC32
References: <20120216033411.7972.77705.stgit@suzukikp>
 <20120217093220.0c2993a1.kumagai-atsushi@mxc.nes.nec.co.jp>
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To: Atsushi Kumagai <kumagai-atsushi@mxc.nes.nec.co.jp>
Cc: linux ppc dev <linuxppc-dev@lists.ozlabs.org>, Josh Boyer <jwboyer@gmail.com>, kexec@lists.infradead.org, Kumar Gala <galak@kernel.crashing.org>

On 02/17/2012 06:02 AM, Atsushi Kumagai wrote:
> Hi, Suzuki
>
> On Thu, 16 Feb 2012 09:05:17 +0530
> "Suzuki K. Poulose"<suzuki@in.ibm.com>  wrote:
>
>> The series introduces an infrastructure to define platform specific
>> bits for page translation for PPC and PPC44x support for vmalloc
>> translation.
>>
>> This is similar to what we have implemented for Crash-utility.
>>
>> The patches are based makedumpfile-1.4.2 + PPC32 support patches
>> which is queued in for 1.4.3.
>>
>> ---
>>
>> Suzuki K. Poulose (4):
>>        [makedumpfile][ppc] PPC44x page translation definitions
>>        [makedumpfile][ppc] Define platform descriptors for page translation
>>        [makedumpfile][ppc] Generic vmalloc translation support
>>        [makedumpfile] Add read_string routine
>>
>>
>>   arch/ppc.c     |  108 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
>>   makedumpfile.c |   14 +++++++
>>   makedumpfile.h |   21 +++++++++++
>>   3 files changed, 139 insertions(+), 4 deletions(-)
>>
>> --
>> Suzuki Poulose
>
> Could you tell me what kind of data is stored in vmalloc region in PPC ?
> I want to estimate importance of your patches for makedumpfile.
I know at least the modules are loaded in the vmalloc'd region. I have
Cc'ed linux-ppc dev. We should be able to get enough info from the experts here.

Josh / Kumar / Others,

Could you please let us know your thoughts ?

Thanks

Suzuki


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