[fedora-arm] gettext lock hang

[Jon Masters]

Hi Folks,

A quick note that I identified an upstream futex barrier fix from
Catalin that went into 3.17 late, and which might explain the problem we
are seeing with gettext lock tests hanging. I've built a test kernel for
the builder that was reproducing and pointed Peter and Paul at the
necessary information. If it turns out to the the problem, will add a
summary to this thread. But I thought I should drop a quick note.

Jon.