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[Bug libc/13753] [2.15 backport] Really fix AVX tests
- From: "law at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Thu, 10 May 2012 19:06:41 +0000
- Subject: [Bug libc/13753] [2.15 backport] Really fix AVX tests
- Auto-submitted: auto-generated
- References: <bug-13753-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=13753
law at redhat dot com changed:
What |Removed |Added
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CC| |law at redhat dot com
--- Comment #3 from law at redhat dot com 2012-05-10 19:06:41 UTC ---
I've also got reports that Uli's patch is wrong because it can leave AVX
enabled even though OSXSAVE is off.
My understanding is:
1. OSXSAVE must be enabled
2. AVX must be enabled
3. XGETBV must have XMM & XMM state enabled
Otherwise AVX can not be used.
This (for example) causes Xen to fail miserably.
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