linux-kernel - Re: [regression, bisected] x86: efi: Pass boot services variable info to runtime code

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Message-ID: <20130524210534.GA15466@redhat.com>
Date:	Fri, 24 May 2013 17:05:34 -0400
From:	Dave Jones <davej@...hat.com>
To:	Russ Anderson <rja@....com>
Cc:	Robin Holt <holt@....com>, Matt Fleming <matt@...sole-pimps.org>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	matt.fleming@...el.com, linux-efi@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Borislav Petkov <bp@...en8.de>
Subject: Re: [regression, bisected] x86: efi: Pass boot services variable
 info to runtime code

On Fri, May 24, 2013 at 12:02:15PM -0500, Russ Anderson wrote:
 > On Fri, May 24, 2013 at 11:11:11AM -0500, Robin Holt wrote:
 > > Russ,
 > > 
 > > Can we open a bug for the BIOS folks and see if we can get this addressed?
 > 
 > I already talked with them.  It is not in an area that we
 > normally change, so if there is a bug may be in the Intel
 > reference code.  More investigation is needed to track down
 > the actual problem, and that could take help from Intel.
 > 
 > Regardless of that, it is a kernel patch that triggers the
 > problem.  This isn't the first time a kernel change does
 > the "right thing" but trips across questionable bios/EFI/bootloader
 > implementation.  That still makes it a kernel bug.
 > 
 > I'm still digging to better understand the root problem.
 
When we rebased the Fedora 18 kernel to 3.9 we had a bunch of reports
from people who can no longer boot with what looks like similar symptoms.

https://bugzilla.redhat.com/show_bug.cgi?id=964335

	Dave

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