Red Hat Bugzilla – Bug 491817
Flag sse3 missing in /proc/cpuinfo for Opteron 146, socket 939
Last modified: 2009-03-24 16:37:12 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):
Steps to Reproduce:
1. Cat /proc/cpuinfo.
Capabilities sse and sse2 are reported.
Flag sse3 is returned, too.
Utility x86info actually reports the processor being an "Opteron/Athlon 64/Athlon 64 FX (SH-E4)", and feature flags also includes sse3.
Created attachment 336430 [details]
Output of x86info for Opteron 146, socket 939.
sse3 is called pni in linux for historical reasons.