linux-kernel - Re: [GIT PULL] x86 fixes

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Message-ID: <1411457738.21380.360.camel@mfleming-mobl1.ger.corp.intel.com>
Date:	Tue, 23 Sep 2014 08:35:38 +0100
From:	Matt Fleming <matt.fleming@...el.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Anvin <hpa@...or.com>, Josh Boyer <jwboyer@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...nel.org>
Subject: Re: [GIT PULL] x86 fixes

On Tue, 2014-09-23 at 00:07 -0700, Linus Torvalds wrote:
> 
> On Sep 22, 2014 11:57 PM, "Matt Fleming" <matt.fleming@...el.com>
> wrote:
> >
> > Linus, what are the particulars of your Sony machine? Are you
> running
> > with secure boot on? Is is a regular grub2/Fedora machine?
> 
> It's a regular fedora 20 install with grub2, yes, and set for EFI boot
> rather than legacy bios. But I don't play around with signing stuff,
> so it ends up saying "booting in insecure mode" at startup (our
> something like that, I'm not at the machine right now).

OK that's good at least. There seems to be a pattern here, booting with
Fedora's grub2.

> > Reverting this is obviously the way to go, but it would be useful to
> > diagnose this failure some more - there's clearly a gap in my
> testing.
> 
> It literally just reboots after loading the kernel, so not a lot to go
> on. I can try things out if you want to, though. 

Thanks! I'll let you know. I'm gonna try and recreate the problem here
first since this early boot debugging is a massive PITA.

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