Comment 6 for bug 1057526

A corresponding Debian bug:

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=550428

A recently filed (by me) upstream bug, containing a better test program, some analysis of why this happens, and a candidate fix:

  http://sourceware.org/bugzilla/show_bug.cgi?id=15218

A more invasive, but much better tested, fix which has been in Fedora for a while:

  http://pkgs.fedoraproject.org/cgit/glibc.git/plain/glibc-fedora-gai-canonical.patch