Date: Thu, 23 Aug 2007 11:17:09 +0530
From: Vivek Goyal <vgoyal@in.ibm.com>
To: "Ken'ichi Ohmichi" <oomichi@mxs.nes.nec.co.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>,
       lkml <linux-kernel@vger.kernel.org>,
       kexec-ml <kexec@lists.infradead.org>, Neil Horman <nhorman@redhat.com>,
       Bernhard Walle <bwalle@suse.de>, Don Zickus <dzickus@redhat.com>,
       Dan Aloni <da-x@monatomic.org>
Subject: Re: [PATCH 0/3] vmcoreinfo support for dump filtering
Message-ID: <20070823054709.GC365@in.ibm.com>
Reply-To: vgoyal@in.ibm.com
References: <20070822210838oomichi@mail.jp.nec.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20070822210838oomichi@mail.jp.nec.com>
User-Agent: Mutt/1.5.11
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1708
Lines: 44

On Wed, Aug 22, 2007 at 09:08:38PM +0900, Ken'ichi Ohmichi wrote:
> 
> Hi Andrew,
> 
> This patch set frees the restriction that makedumpfile users should
> install a vmlinux file (including the debugging information) into
> each system.
> 
> makedumpfile command is the dump filtering feature for kdump.
> It creates a small dumpfile by filtering unnecessary pages for the
> analysis. To distinguish unnecessary pages, it needs a vmlinux file
> including the debugging information. These days, the debugging package
> becomes a huge file, and it is hard to install it into each system.
> 
> To solve the problem, kdump developers discussed it at lkml and kexec-ml.
> As the result, we reached the conclusion that necessary information
> for dump filtering (called "vmcoreinfo") should be embedded into the
> first kernel file and it should be accessed through /proc/vmcore
> during the second kernel.
> (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html) 
> 
> Dan Aloni created the patch set for the above implementation.
> (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html)
> 
> And I updated it for multi architectures and memory models.
> (http://lists.infradead.org/pipermail/kexec/2007-August/000479.html)
> 
> 
> PATCH SET:
> [1/3] [linux] Add vmcoreinfo
>   The patch is for linux-2.6.22.
>   The patch adds the vmcoreinfo data. Its address and size are output
>   to /sys/kernel/vmcoreinfo.
> 

Looks good to me.

Thanks
Vivek
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/