Re: NPTL issues w/ stable

["Alpesh Rodage" <alpeshrodage@gmail.com>]

Try resetting environment variable GNU_LIBPTHREAD_VERSION
export GNU_LIBPTHREAD_VERSION=""

Then check for thread version again.
getconf GNU_LIBPTHREAD_VERSION

e.g.
getconf GNU_LIBPTHREAD_VERSION
NPTL 0.61

If this tells you the version of threads is NTPL then this will solve your problem.