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From: "torvald at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug sanitizer/48076] Unsafe double checked locking in __emutls_get_address
Date: Wed, 28 Nov 2012 14:30:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48076

--- Comment #7 from torvald at gcc dot gnu.org 2012-11-28 14:29:47 UTC ---
(In reply to comment #6)
> There seems to be a similar bug in code generated for function static
> variables.
> The fast-path load is a plain load rather than atomic acquire load.

Haven't looked at the details, but this indeed looks similar.