It would be useful for systemtap & gdb users to have the fedora version of glibc merge in the code from the roland/systemtap glibc git branch. This is to add sys/sdt.h-based markers to pthreads and a few other places, to enable lightweight instrumentation.
glibc-2.13.90-9 has been submitted as an update for Fedora 15. https://admin.fedoraproject.org/updates/glibc-2.13.90-9
Package glibc-2.13.90-9: * should fix your issue, * was pushed to the Fedora 15 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing glibc-2.13.90-9' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/glibc-2.13.90-9 then log in and leave karma (feedback).
glibc-2.13.90-9 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.