linux-kernel - Re: [3.9-rc1] Bug in bootup code or debug code?

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Date:	Wed, 20 Mar 2013 12:03:11 -0500
From:	Shaun Ruffell <sruffell@...ium.com>
To:	"Yu, Fenghua" <fenghua.yu@...el.com>
Cc:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	"hpa@...ux.intel.com" <hpa@...ux.intel.com>,
	"dave@...ux.vnet.ibm.com" <dave@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [3.9-rc1] Bug in bootup code or debug code?

On Wed, Mar 20, 2013 at 04:32:14PM +0000, Yu, Fenghua wrote:
> > From: Shaun Ruffell [mailto:sruffell@...ium.com]
> > On Tue, Mar 19, 2013 at 10:12:39PM +0000, Yu, Fenghua wrote:
> > > > From: Tetsuo Handa [mailto:penguin-kernel@...ove.SAKURA.ne.jp]
> > > > H. Peter Anvin wrote:
>  
> > Hi Fenghua,
> > 
> > I ran into the same issue on a test system I use (not a virtual
> > machine) and went through basically the same process as Dave
> > Hansen w/bisecting before finding this thread.
> > 
> > Any chance you could send the patch to the mailing list and I could
> > also throw it on my test system?
> Hi, Shaun,
> 
> The patch is in tip.git tree now. You can get it from:
> http://git.kernel.org/tip/c83a9d5e425d4678b05ca058fec6254f18601474
> 
> Please let us know if the patch fixes the issue you saw.

Thanks for the link. That patch applied on 3.9-rc3 did allow me to boot with my
default kernel config.

Not related to this patch, and not sure it really matters, but FYI: I just
noticed the following warning when building the patched kernel:

WARNING: vmlinux.o(.text+0x2a1a7): Section mismatch in reference from the function apply_microcode_early() to the function .cpuinit.text:print_ucode()
The function apply_microcode_early() references
the function __cpuinit print_ucode().
This is often because apply_microcode_early lacks a __cpuinit 
annotation or the annotation of print_ucode is wrong.

Thanks,
Shaun
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