Bug 491817 - Flag sse3 missing in /proc/cpuinfo for Opteron 146, socket 939
Flag sse3 missing in /proc/cpuinfo for Opteron 146, socket 939
Status: CLOSED NOTABUG
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
10
x86_64 Linux
low Severity medium
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
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Depends On:
Blocks:
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Reported: 2009-03-24 04:48 EDT by Joachim Frieben
Modified: 2009-03-24 16:37 EDT (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2009-03-24 16:37:12 EDT
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Attachments (Terms of Use)
Content of /proc/cpuinfo for Opteron 146, socket 939. (560 bytes, text/plain)
2009-03-24 04:48 EDT, Joachim Frieben
no flags Details
Output of x86info for Opteron 146, socket 939. (583 bytes, text/plain)
2009-03-24 04:49 EDT, Joachim Frieben
no flags Details

  None (edit)
Description Joachim Frieben 2009-03-24 04:48:22 EDT
Created attachment 336429 [details]
Content of /proc/cpuinfo for Opteron 146, socket 939.

Description of problem:
File /proc/cpuinfo only displays SSE related flags sse and sse2 for an Opteron 146, socket 939. I believe that no stepping earlier than E4 was available for socket 939. Thus I would expect sse3 to be supported,too.

Version-Release number of selected component (if applicable):
kernel-2.6.29-0.67.rc8.git4.fc10.x86_64

How reproducible:
Always.

Steps to Reproduce:
1. Cat /proc/cpuinfo.
  
Actual results:
Capabilities sse and sse2 are reported.

Expected results:
Flag sse3 is returned, too.

Additional info:
Utility x86info actually reports the processor being an "Opteron/Athlon 64/Athlon 64 FX (SH-E4)", and feature flags also includes sse3.
Comment 1 Joachim Frieben 2009-03-24 04:49:40 EDT
Created attachment 336430 [details]
Output of x86info for Opteron 146, socket 939.
Comment 2 Chuck Ebbert 2009-03-24 16:37:12 EDT
sse3 is called pni in linux for historical reasons.

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