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We got corrupted linked list in malloc due to memory ordering issues on our ia64 MP machine. This URL http://lse.sourceforge.net/locking/wmbdd.html has some relevant info. We need to make memory barrier available to the whole glibc, even user application source codes. This patch adds memory-barrier.h to glibc internal headers and adds one memory barrier to malloc. H.J.
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libc-mb.patch
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