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SubjectRe: Linux* Processor Microcode Data File
On Monday 09 March 2009, Sitsofe Wheeler wrote:
>At the risk of being wrong twice in a row...
>On Mon, Mar 09, 2009 at 11:58:22AM -0400, Gene Heskett wrote:
>> I'll have to admit it was with some trepidation that I might brick my
>> processor, which is a quad core AMD 9550, stepping 03 running at 2.2 ghz,
>> but
>Microcode patching in this particular fashion (i.e. _not_ updating the
>BIOS but "on the fly") is volatile (so it has to be redone at every
>boot) which should mean it is very hard to brick a machine this way as
>rebooting will undo everything. Of course someone is going to tell me
>how they managed to kill a machine stone dead due to some sequence of
>events I hadn't thought of and I disclaim any responsiblity if someone
>tries to update their microcode and harms their machine in any fashion -
>you update at your own risk :).
>> the directions didn't note until the end, that it would take a 2.6.29
>> series kernel to do it and I was running But when I got to the
>> modprobe -r microcode, modprobe microcode part, there was no feedback from
>> either command. So did I, or did I not do this as I was and am running
>> The following was reported in my log:
>modprobe generally doesn't return much if the module in question loads
>or (as in this case because you were using -r) is removed. That's the
>typical Unix command line behviour - no response/output on "OK".
>> Mar 9 07:22:04 coyote kernel: [65725.855365] platform microcode:
>> firmware: requesting amd-ucode/microcode_amd.bin Mar 9 07:22:04 coyote
>> kernel: [65725.863101] microcode: size 1936, total_size 960 Mar 9
>> 07:22:04 coyote kernel: [65725.863107] microcode: CPU3 patch does not
>> match (processor_rev_id: 1020, eqiv_cpu_id: 1022) Mar 9 07:22:04 coyote
>> kernel: [65725.863110] microcode: size 968, total_size 960 Mar 9 07:22:04
>> coyote kernel: [65725.863120] microcode: CPU3 updated from revision
>> 0x1000065 to 0x1000083 Mar 9 07:22:04 coyote kernel: [65725.863122]
>> Microcode Update Driver: v2.00 <>, Peter Oruba
>> Inquiring minds and all that. Comments please?
>It looks like the firmware file (amd-ucode/microcode_amd.bin) doesn't
>match your processor. CC'ing Andreas for comment as you have an AMD

Thank You. But the text report above also says it did update it, hence the

Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
For fast-acting relief, try slowing down.

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