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[Bug nptl/17561] GLIBC 2.20 results in SIGILL on x86_64 with double pthread_rwlock_unlock()
- From: "andi-bz at firstfloor dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Fri, 07 Nov 2014 00:41:20 +0000
- Subject: [Bug nptl/17561] GLIBC 2.20 results in SIGILL on x86_64 with double pthread_rwlock_unlock()
- Auto-submitted: auto-generated
- References: <bug-17561-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17561
Andi Kleen <andi-bz at firstfloor dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |andi-bz at firstfloor dot org
--- Comment #3 from Andi Kleen <andi-bz at firstfloor dot org> ---
Yes don't do that as it's undefined.
In theory it would be possible to put a workaround into glibc for it, but it
would make the unlock path slower and so far it was not deemed needed for this
undefined case.
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