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[Bug libc/11640] New: Incorrect x86 CPU family and model check
- From: "hjl dot tools at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 27 May 2010 04:51:25 -0000
- Subject: [Bug libc/11640] New: Incorrect x86 CPU family and model check
- Reply-to: sourceware-bugzilla at sourceware dot org
Glibc trunk, 2.12, 2.11 has
if (__cpu_features.family == 0x0f)
{
family += extended_family;
model += extended_model;
}
else if (__cpu_features.family == 0x06)
{
model += extended_model;
switch (__cpu_features.model)
...
__cpu_features.family = family;
__cpu_features.model = model;
__cpu_features.family and __cpu_features.family are checked
before they are set. A patch is posted at
http://sourceware.org/ml/libc-alpha/2010-05/msg00048.html
It should be applied cleanly to trunk and 2.12. 2.11 needs
small changes.
--
Summary: Incorrect x86 CPU family and model check
Product: glibc
Version: 2.12
Status: NEW
Severity: normal
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: hjl dot tools at gmail dot com
CC: glibc-bugs at sources dot redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=11640
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