This bug was fixed in the package glibc - 2.23-0ubuntu5
--------------- glibc (2.23-0ubuntu5) xenial; urgency=medium
* Disable lock-elision on all targets to avoid regressions (LP: #1642390)
-- Adam Conrad <email address hidden> Wed, 16 Nov 2016 13:53:50 -0700
This bug was fixed in the package glibc - 2.23-0ubuntu5
---------------
glibc (2.23-0ubuntu5) xenial; urgency=medium
* Disable lock-elision on all targets to avoid regressions (LP: #1642390)
-- Adam Conrad <email address hidden> Wed, 16 Nov 2016 13:53:50 -0700