Bug 120573

Summary: microcode update fails: "Bad data in microcode data file"
Product: [Fedora] Fedora Reporter: Jordan Russell <jr-redhatbugs2>
Component: kernel-utilsAssignee: Arjan van de Ven <arjanv>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 1   
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Hardware: i686   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2004-06-02 02:20:34 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Jordan Russell 2004-04-11 01:11:19 UTC 
Description of problem:
The microcode update works fine with RHL9's kernel-utils package
(2.4-8.29) but gives an error with FC1's kernel-utils package
(2.4-9.1.101).

Version-Release number of selected component (if applicable):
kernel-utils-2.4-9.1.101.fedora

How reproducible:
Always

Steps to Reproduce:
# service microcode_ctl start
# cat /var/log/messages

Actual Results:

Apr 10 19:58:09 fishy kernel: microcode: collect_cpu_info : sig=0x683,
pf=0x10, rev=0x14
Apr 10 19:58:09 fishy kernel: microcode: error! Bad data in microcode
data file
Apr 10 19:58:09 fishy kernel: microcode: Error in the microcode data

Expected Results:

When I downgrade to the kernel-utils package from RHL9, I get this
(which is correct):

Apr 10 20:02:38 fishy kernel: microcode: collect_cpu_info : sig=0x683,
pf=0x10, rev=0x14
Apr 10 20:02:38 fishy kernel: Microcode Found.
Apr 10 20:02:38 fishy kernel:    Header Revision 0x1
Apr 10 20:02:38 fishy kernel:    Loader Revision 0x1
Apr 10 20:02:38 fishy kernel:    Revision 0x14
Apr 10 20:02:38 fishy kernel:    Date 2/6/2001
Apr 10 20:02:38 fishy kernel:    Signature 0x683
Apr 10 20:02:38 fishy kernel:    Type 0x0 Family 0x6 Model 0x8
Stepping 0x3
Apr 10 20:02:38 fishy kernel:    Processor Flags 0x10
Apr 10 20:02:38 fishy kernel:    Checksum 0x976fd98
Apr 10 20:02:38 fishy kernel: microcode: CPU0 already at revision 0x14
(current=0x14)
Apr 10 20:02:38 fishy kernel: microcode: No suitable data for cpu 0

Additional info:

I'm testing with a PIII 800 CPU.
Comment 1 Jordan Russell 2004-06-02 02:20:34 UTC 
After upgrading to Fedora Core 2, this problem has gone away.
I now get "No suitable data for cpu 0", as with Red Hat Linux 9.