linux-kernel - Re: Linux 2.6.27-rc5: System boot regression caused by commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd

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Message-Id: <200808300047.57310.rjw@sisk.pl>
Date:	Sat, 30 Aug 2008 00:47:56 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Tejun Heo <htejun@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	David Witbrodt <dawitbro@...global.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kernel Testers <kernel-testers@...r.kernel.org>
Subject: Re: Linux 2.6.27-rc5: System boot regression caused by commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd

On Saturday, 30 of August 2008, Jeff Garzik wrote:
> Rafael J. Wysocki wrote:
> > Bisection turned up commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd as the culprit:
> > 
> > commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd
> > Author: Yinghai Lu <yhlu.kernel@...il.com>
> > Date:   Mon Aug 25 00:56:08 2008 -0700
> > 
> >     x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3
> > 
> > Reverting this commit helps.
> > 
> > The symptom is that AHCI probe fails with this commit applied.
> 
> 
> Just to be sure...  Does "helps" imply that unresolved AHCI behavior 
> exists after reverting that commit?

No, after reverting this commit AHCI works normally.

Thanks,
Rafael
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