linux-kernel - Re: Bisected regression (Was Re: current -git fails to boot on nehalem-ex)

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Date:	Fri, 11 Dec 2009 09:32:07 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Yinghai Lu <yinghai@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Randy Dunlap <randy.dunlap@...cle.com>
Subject: Re: Bisected regression (Was Re: current -git fails to boot on
 nehalem-ex)


* Jens Axboe <jens.axboe@...cle.com> wrote:

> On Thu, Dec 10 2009, Yinghai Lu wrote:
> > Jens Axboe wrote:
> >  
> > > I can test other patches if you have good ideas, otherwise I suggest we
> > > revert the commit.
> > 
> > we should go further.
> > 
> > please check, esp should fix that  from kernel acpi=off to kexec
> > second kernel with  acpi=off for your system.
> > 
> > [PATCH] x86: use find_e820 instead of hard code trampoline addr
> 
> -git with this patch boots properly. kexec'ing into a kernel with 
> acpi=off passed works. Then kexec'ing into the same kernel again with 
> acpi-off works too.
> 
> So as far as I'm concerned, this patch fixes it for me. You can add my 
> Tested-by, too. Thanks!

Thanks Jens and Yinghai, i've queued up the fix.

	Ingo
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