Hi,
Maybe an malloc/free/mmap wrapper that records the requested sizes and
alloc/free order and dumps them to file so that one can make a compact
git-free standalone test case for the glibc maintainers might be a good
thing.
I already have such a wrapper:
http://malloc.de/malloc/mtrace-20060529.tar.gz
But note that it does interfere with the thread scheduling, so it
can't record the exact same allocation pattern as when not using the
wrapper.
Regards,
Wolfram.