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As glibc in RHEL6 has been upgraded to glibc 2.12 and valgrind uses suppression lists matching the filenames of glibc libraries which no longer are /lib*/libc-2.11*.so etc. but /lib*/libc-2.12*.so, valgrind needs to be rebuilt against glibc 2.12, otherwise running valgrind even on trivial programs like /bin/true
results in many reported failures within the dynamic linker.

valgrind-3.5.0-18.el6 has been rebuilt.

Red Hat Enterprise Linux Beta 2 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.