Hi Vivek,

On Fri, 22 Sep 2006 10:07:08 -0400, Vivek Goyal <[EMAIL PROTECTED]> wrote:
> On Fri, Sep 22, 2006 at 05:38:30PM +0900, Ken'ichi Ohmichi wrote:
> > 
> > Hi.
> > 
> > [PATCH 3/3] Add the analysis feature of ia64-kdump
> >   This patch adds the analysis feature of ia64-kdump.
> 
> What is analysis feature of ia64-kdump?
> 
> -Vivek
> _______________________________________________
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A feature of ia64-kdump is that makedumpfile sets p_paddr of 
region 5 memory section into kdump_sub_header->phys_base.
This is only for the diskdump format dump file. 
As a result, makedumpfile can be newly used with x86 and x86_64 in ia64.
The following is a part of mails that Ken'ichi Ohmichi received from
Dave Anderson.


On Tue, 19 Sep 2006 10:10:38 -0400, Dave Anderson <[EMAIL PROTECTED]> wrote:
> Ken'ichi Ohmichi wrote:
> 
> > Hi.

> > >Also, I'm not even sure whether you are currently working on the ia64
> > >version of makedumpfile, but to answer your original question re: what to
> > >do about other architectures with respect to the sub_header_kdump,
> > >the physical offset information will be required for ia64:
> > >
> > >http://post-office.corp.redhat.com/archives/kexec-kdump-list/2006-September/msg00068.html
> > >http://post-office.corp.redhat.com/archives/kexec-kdump-list/2006-September/msg00070.html

> They refer to these two posts:
> 
>     * From: Dave Anderson <anderson redhat com>
>     * To: kexec-kdump-list redhat com
>     * Subject: ia64 kdump support
>     * Date: Thu, 14 Sep 2006 17:31:01 -0400
> 
>     * From: Zou Nan hai <nanhai zou intel com>
>     * To: Dave Anderson <anderson redhat com>
>     * Cc: kexec-kdump-list redhat com
>     * Subject: Re: ia64 kdump support
>     * Date: 15 Sep 2006 06:51:27 +0800
> 
> 
> >
> > >However, there is no need for any calculations such as required by
> > >the x86_64.  For ia64, I only need the phdr->p_paddr value that is 
> > >associated
> > >with the phdr->p_vaddr for the kernel's mapped region 5 memory section
> > >at 0xa000000100000000.
> > If a dumpfile is ia64-kdump, makedumpfile will set p_paddr of region 5
> > memory section into kdump_sub_header->phys_base.
> >
> 
> Great!
> 
> I will be posting crash version 4.0-3.4 today, which will include your
> diskdump/kdump patch, with diskdump_phys_base() modified to
> support both x86_64 and ia64.
> 

> Thanks,
>    Dave


Thanks
tachibana
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