From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: v3.9 - CPU hotplug and microcode earlier loading hits a mutex
 deadlock (x86_cpu_hotplug_driver_mutex)
Date: Wed, 08 May 2013 08:20:31 -0700
Message-ID: <518A6D3F.4040405@zytor.com>
References: <20130506125937.GA14036@phenom.dumpdata.com> <20130507190024.GA4303@phenom.dumpdata.com> <20130508125414.GB30955@pd.tnic> <20130508140342.GA8152@phenom.dumpdata.com> <20130508142949.GC30955@pd.tnic>
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To: Borislav Petkov <bp@alien8.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, fenghua.yu@intel.com, xen-devel@lists.xensource.com
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On 05/08/2013 07:29 AM, Borislav Petkov wrote:
> On Wed, May 08, 2013 at 10:03:42AM -0400, Konrad Rzeszutek Wilk wrote=
:
>=20
> [ =E2=80=A6 snip some funky BIOS code ]
>=20
>> [here it shifts and continues on testing each CPU bit]
>>
>>> Questions over questions...?
>>
>> I probably went overboard with my answers :-)
>=20
> Konrad, you're killing me! :-) You actually went and looked at the
> BIOS disassembly voluntarily. You must be insane, I think you should
> immediately go to the doctor now for a thorough checkup. :-)
>=20
> I think I know who I can sling BIOS issues now to.
>=20

Nah, that was just the ACPI AML.  Real BIOS code is much scarier.

	-hpa