Date: Mon, 5 May 2003 21:51:57 +0100 (BST)
From: Tigran Aivazian <tigran@veritas.com>
To: Joseph Fannin <jhf@rivenstone.net>
cc: linux-kernel@vger.kernel.org
Subject: Re: microcode driver fails on PIII-Celeron
In-Reply-To: <20030505194329.GA2094@rivenstone.net>
Message-ID: <Pine.LNX.4.44.0305052150310.4017-100000@einstein31.homenet>
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This is not a bug. It simply means that there is no microcode data for 
your processor. So, I recommend disabling invocation of microcode_ctl on 
startup until there is a latest set of microcode data which contains a 
chunk for your cpu (i.e. until your cpu has some bugs worthy of fixing :)

Regards
Tigran

On Mon, 5 May 2003, Joseph Fannin wrote:

>     The microcode driver in the kernel fails for me on my laptop with
> a PIII-era Celeron 900.  I've tested both 2.4 and 2.5 kernels over
> course of a year or so; all abort with the same error when trying to
> load the microcode:
> 
> microcode: CPU0 no microcode found! (sig=68a, pflags=32)
> 
>     My amateur reading of the code leads me to think the processor
> might be misidentified somehow (or something, my head doesn't like bit
> operations).
> 
> /proc/cpuinfo:
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 8
> model name      : Celeron (Coppermine)
> stepping        : 10
> cpu MHz         : 897.366
> cache size      : 128 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse
> bogomips        : 1773.56
> 
>     FWIW, this is a Debian unstable system, using the microcode
> utilities as packaged for Debian.  The laptop is a Dell Inspiron 2500,
> based on the i815 chipset.
> 
>     Is this a bug, or is this really not supposed to work?
> 
> --
> Joseph Fannin
> jhf@rivenstone.net
> 
> "That's all I have to say about that." -- Forrest Gump.
> 

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