Another glibc change that nearly got pushed into F16

Richard W.M. Jones rjones at
Tue Oct 25 19:25:56 UTC 2011

On Tue, Oct 25, 2011 at 12:17:54PM -0700, Adam Williamson wrote:
> On Tue, 2011-10-25 at 18:54 +0100, Richard W.M. Jones wrote:
> > It's rather too complex to explain the change here, so I suggest
> > you go and read these first:
> > 
> >
> >
> >
> >
> > 
> > Now, I'm _not_ saying that the glibc change is wrong.  In fact, it
> > enables extra gcc optimizations, which is great.  But in this case it
> > looks like we're going to have to review all use of thread mutexes in
> > the whole of Fedora.  Maybe not the kind of thing we had in mind for
> > Fedora 16 at this point.
> > 
> > I think it's great that Thomas Rast, Jim Meyering, and Jakub Jelinek
> > found the problem after probably a couple of man-days of effort, but
> > really development and bug fixing like this belongs in Rawhide.
> Well, -13 is what we currently have in stable, and we're past freeze.


> So unless this isn't broken in -13, to make sure this only 'nearly'
> gets pushed into F16, we're going to need a non-broken -14 and that
> bug is going to need to be proposed as a blocker or NTH.

My non-expert advice would be that this should be a blocker.  It would
be better if experts in POSIX arcana could weigh in on this subject


Richard Jones, Virtualization Group, Red Hat
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