From: Russ Anderson <rja-sJ/iWh9BUns@public.gmane.org>
To: Matt Fleming <matt-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
Cc: Matthew Garrett
<matthew.garrett-05XSO3Yj/JvQT0dZR+AlfA@public.gmane.org>,
matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
"H. Peter Anvin" <hpa-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Josh Boyer <jwboyer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [regression, bisected] x86: efi: Pass boot services variable info to runtime code
Date: Wed, 29 May 2013 15:16:17 -0500 [thread overview]
Message-ID: <20130529201616.GB28027@sgi.com> (raw)
In-Reply-To: <20130524074544.GM14575-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
On Fri, May 24, 2013 at 08:45:44AM +0100, Matt Fleming wrote:
> On Thu, 23 May, at 05:23:21PM, Russ Anderson wrote:
> > Interesting data point. The failure is on a rhel7/grub2 root.
> > The identical kernel on a rhel6/grub root boots. So maybe
> > grub2 brings out the failure? I suspect Fedora19/grub2 on
> > EFI should hit the problem (for someone looking to reproduce
> > it).
> >
> > In both cases the kernel boot line options are the same.
>
> I'll bet that rhel7 is using the EFI handover protocol which uses the
> internal mechanisms of the EFI boot stub.
To be more specific (now that I've dug through the code), grub2 (used
by rhel7) uses EFI boot stubs. grub and elilo apparently do not use
EFI boot stubs, so they don't hit the problem (at least on my test
systems).
--
Russ Anderson, OS RAS/Partitioning Project Lead
SGI - Silicon Graphics Inc rja-sJ/iWh9BUns@public.gmane.org
next prev parent reply other threads:[~2013-05-29 20:16 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-22 16:27 [regression, bisected] x86: efi: Pass boot services variable info to runtime code Russ Anderson
[not found] ` <20130522162747.GA20816-sJ/iWh9BUns@public.gmane.org>
2013-05-23 11:58 ` Matt Fleming
[not found] ` <20130523115801.GJ14575-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-05-23 20:32 ` Russ Anderson
[not found] ` <20130523203234.GD20913-sJ/iWh9BUns@public.gmane.org>
2013-05-24 7:43 ` Matt Fleming
[not found] ` <20130524074331.GL14575-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-05-24 11:09 ` Borislav Petkov
[not found] ` <20130524110911.GA32220-K5JNixvcfoxupOikMc4+xw@public.gmane.org>
2013-05-24 11:40 ` Matt Fleming
2013-05-24 16:11 ` Robin Holt
[not found] ` <20130524161111.GE3672-sJ/iWh9BUns@public.gmane.org>
2013-05-24 17:02 ` Russ Anderson
[not found] ` <20130524170214.GA30179-sJ/iWh9BUns@public.gmane.org>
2013-05-24 21:05 ` Dave Jones
[not found] ` <20130524210534.GA15466-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2013-05-27 4:27 ` joeyli
[not found] ` <1369628832.19026.22.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2013-05-27 4:32 ` joeyli
2013-05-28 2:43 ` Russ Anderson
2013-05-24 20:05 ` Russ Anderson
[not found] ` <20130524200539.GA3322-sJ/iWh9BUns@public.gmane.org>
2013-05-24 20:11 ` Matthew Garrett
2013-05-24 20:49 ` Russ Anderson
[not found] ` <20130524204937.GB3322-sJ/iWh9BUns@public.gmane.org>
2013-05-28 10:50 ` Matt Fleming
2013-05-28 10:53 ` Matt Fleming
2013-05-28 8:35 ` Ingo Molnar
2013-05-29 21:01 ` Russ Anderson
[not found] ` <20130529210115.GC28027-sJ/iWh9BUns@public.gmane.org>
2013-05-29 22:22 ` Jiri Kosina
[not found] ` <alpine.LRH.2.00.1305300018180.1111-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2013-05-29 22:46 ` Russ Anderson
[not found] ` <20130529224645.GA16582-sJ/iWh9BUns@public.gmane.org>
2013-05-29 22:53 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1305300048520.30576-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2013-05-30 2:16 ` joeyli
[not found] ` <1369880172.17397.11.camel-ONCj+Eqt86TasUa73XJKwA@public.gmane.org>
2013-05-30 22:17 ` Russ Anderson
[not found] ` <20130530221737.GA11105-sJ/iWh9BUns@public.gmane.org>
2013-05-30 22:21 ` Matthew Garrett
2013-05-30 22:28 ` Russ Anderson
[not found] ` <20130530222836.GB11105-sJ/iWh9BUns@public.gmane.org>
2013-05-30 22:30 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1305310029560.30576-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2013-05-31 2:17 ` Russ Anderson
[not found] ` <20130531021749.GA24287-sJ/iWh9BUns@public.gmane.org>
2013-05-31 3:28 ` joeyli
2013-05-30 22:32 ` Matthew Garrett
2013-05-31 2:54 ` Russ Anderson
2013-05-31 10:06 ` Ingo Molnar
2013-05-30 22:25 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1305310023020.30576-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2013-05-31 10:12 ` Ingo Molnar
[not found] ` <20130531101250.GD30394-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-05-31 11:06 ` Jiri Kosina
[not found] ` <alpine.LNX.2.00.1305311259520.30576-ztGlSCb7Y1iN3ZZ/Hiejyg@public.gmane.org>
2013-05-31 11:40 ` Ingo Molnar
[not found] ` <20130531114037.GC7131-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-05-31 11:54 ` Josh Boyer
2013-05-31 12:30 ` Borislav Petkov
[not found] ` <20130531123015.GC17843-K5JNixvcfoxupOikMc4+xw@public.gmane.org>
2013-05-31 12:43 ` Ingo Molnar
[not found] ` <20130531124356.GA8212-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-05-31 14:34 ` Matthew Garrett
[not found] ` <20130531143425.GA5850-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-05-31 14:42 ` James Bottomley
[not found] ` <1370011357.1913.15.camel-sFMDBYUN5F8GjUHQrlYNx2Wm91YjaHnnhRte9Li2A+AAvxtiuMwx3w@public.gmane.org>
2013-05-31 14:45 ` H. Peter Anvin
2013-05-31 14:48 ` Matthew Garrett
2013-05-31 15:43 ` Russ Anderson
[not found] ` <20130531154348.GA17145-sJ/iWh9BUns@public.gmane.org>
2013-05-31 16:28 ` Matthew Garrett
[not found] ` <20130531162815.GA8082-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-05-31 17:35 ` James Bottomley
2013-05-31 22:57 ` Russ Anderson
[not found] ` <20130531225730.GB14752-sJ/iWh9BUns@public.gmane.org>
2013-05-31 22:59 ` H. Peter Anvin
2013-05-31 23:30 ` Jiri Kosina
2013-06-01 0:03 ` Matthew Garrett
[not found] ` <20130601000311.GA15126-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>
2013-06-01 4:20 ` Russ Anderson
[not found] ` <20130601042058.GB15199-sJ/iWh9BUns@public.gmane.org>
2013-06-01 4:41 ` Matthew Garrett
2013-06-01 11:01 ` Linus Torvalds
[not found] ` <alpine.LFD.2.03.1306011956350.9068-OR3hLWCBCApQetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
2013-06-01 14:40 ` Matthew Garrett
2013-05-30 2:38 ` joeyli
2013-05-23 22:23 ` Russ Anderson
[not found] ` <20130523222321.GB31880-sJ/iWh9BUns@public.gmane.org>
2013-05-24 7:45 ` Matt Fleming
[not found] ` <20130524074544.GM14575-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2013-05-29 20:16 ` Russ Anderson [this message]
[not found] ` <20130529201616.GB28027-sJ/iWh9BUns@public.gmane.org>
2013-05-31 14:41 ` H. Peter Anvin
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