linux-kernel - Re: [PATCH 1/7] ia64, kdump: Mask MCA/INIT on freezing cpus

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Message-ID: <4A408D32.9010500@jp.fujitsu.com>
Date:	Tue, 23 Jun 2009 17:07:14 +0900
From:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
To:	Robin Holt <holt@....com>
CC:	linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
	Vivek Goyal <vgoyal@...hat.com>,
	Haren Myneni <hbabu@...ibm.com>, kexec@...ts.infradead.org
Subject: Re: [PATCH 1/7] ia64, kdump: Mask MCA/INIT on freezing cpus

Robin Holt wrote:
> On Tue, Jun 23, 2009 at 09:33:46AM +0900, Hidetoshi Seto wrote:
>> Robin Holt wrote:
> ...
>> Do you mean that the 2nd kernel should be able to handle MCA/INIT from its
>> boot up?  I guess the word PROM is nearly equal to PAL/SAL firmware, if so
>> then I don't think there are good generic interface/procedure could be
>> useful here.  Do you have any concrete idea?
> 
> No concrete ideas.  Just a really uneasy feeling whenever the INIT
> is disabled.

Don't worry, don't be afraid.
Again, my patches don't disable INIT until kdump is invoked.
(And if kdump is invoked via INIT, it have already masked at the begging
 of INIT handlers.)

> If you could give this some consideration, I would appreciate it.
> I really don't have the time to dedicate to thinking all the way through
> and therefore will not stand in the way of any patch you propose.
> If I can be of help in any way, please let me know.

I know you guys are busy with this and that...

It would be the best if you could test my patches soon on SGI servers,
but I would appreciate it too if you could let me know if you have any
trouble on the patches later.


Thanks,
H.Seto

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