linux-kernel - Re: [PATCH] x86, FPU: Fix FPU initialization

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Date:	Fri, 12 Apr 2013 07:32:34 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>, X86 ML <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...e.de>
Subject: Re: [PATCH] x86, FPU: Fix FPU initialization


* Borislav Petkov <bp@...en8.de> wrote:

> On Thu, Apr 11, 2013 at 12:26:09PM -0700, H. Peter Anvin wrote:
> > What host is this?
> 
> Judging by the DMI string in the oops:
> 
> > [   15.921486] Pid: 73, comm: hwclock Tainted: G        W    3.9.0-rc6+ #222032 System manufacturer System Product Name/A8N-E
> 
> it is an ASUS board with a K8 on it - probably Ingo's old K8 which
> triggers all kinds of crap off an on.
> 
> 8-)

Yep, with Fedora Core 8, and totally unchanged userspace, booting randconfigs of 
the latest -tip:master tree. This box has booted up over a million Linux kernels 
in the past 4+ years, so when it shows new types of sickness then in 99.9% of the 
cases it's something about the kernel.

The lockup went away after excluding x86/cpu. I'll try more testing as time 
permits.

Thanks,

	Ingo
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