2005-10-21 05:04:12

by Chris Friesen

[permalink] [raw]
Subject: status of kexec for ppc on 2.6.10, any gotchas?


I've been asked to look at kexec for ppc on 2.6.10. The syscall appears
to be present, but there seem to be additional patches for 2.6.10-mm at:

http://www.xmission.com/~ebiederm/files/kexec/

Are these patches needed?

I haven't been able to find any current official documentation, although
I found some old stuff from 2.5 and a writeup at:

http://www-128.ibm.com/developerworks/linux/library/l-kexec.html?ca=dgr-lnxw04RebootFast

Is there any official HOWTO on this? Any issues I should look at in
particular?

Thanks for any pointers,

Chris


2005-10-21 11:03:19

by R Sharada

[permalink] [raw]
Subject: Re: status of kexec for ppc on 2.6.10, any gotchas?


Kexec support involves kernel level support per architecture and
a user space kexec-tools.

Generic kexec kernel support for ppc (ppc32/GameCube) was added
sometime back by Albert Herranz, and I think they got included in 2.6.10-mm1
as per:
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10/2.6.10-mm1/broken-out/
Albert's code was also posted on this site:
http://www.gc-linux.org/down/isobel/kexec/
ppc64 kexec kernel support was added recently (2.6.12-rc4-mm1)
Eric's site can be used for downloading the kexec-tools.

You may want to cross post kexec discussion mails to [email protected],
as that is the primary list where all kexec discussions happen.

Hope this helps
Thanks and Regards,
Sharada

On Thu, Oct 20, 2005 at 11:03:52PM -0600, Christopher Friesen wrote:
>
> I've been asked to look at kexec for ppc on 2.6.10. The syscall appears
> to be present, but there seem to be additional patches for 2.6.10-mm at:
>
> http://www.xmission.com/~ebiederm/files/kexec/
>
> Are these patches needed?
>
> I haven't been able to find any current official documentation, although
> I found some old stuff from 2.5 and a writeup at:
>
> http://www-128.ibm.com/developerworks/linux/library/l-kexec.html?ca=dgr-lnxw04RebootFast
>
> Is there any official HOWTO on this? Any issues I should look at in
> particular?
>
> Thanks for any pointers,
>
> Chris
> -
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