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[Bug nptl/12416] Dynamic linker incorrectly reduces the stack size when making it executable


http://sourceware.org/bugzilla/show_bug.cgi?id=12416

--- Comment #5 from Rodrigo Kumpera <kumpera at gmail dot com> 2012-05-26 15:30:52 UTC ---
Thanks for improving the situation, but this is a real problem for programs
that do conservative stack scanning such as those that depends on boehm-gc or
mono.

Even if pthread_getattr_np no longer lies about stack boundaries, querying it
all the time is nether optimal and safe as there is no guarantee that it can be
done under signal context - and both boehm and mono do stack scanning under
signal context.

It still has not been answered why shrinking the stack is needed.

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