Alvaro Herrera wrote:
Craig James wrote:

Here is my guess -- and this is just a guess.  My functions use a
third-party library which, of necessity, uses malloc/free in the
ordinary way.  I suspect that there's a bug in the Postgres palloc()
code that's walking over memory that regular malloc() allocates.  The
third-party library (OpenBabel) has been tested pretty thoroughly by
me an others and has no memory corruption problems.  All malloc's are
freed properly.  Does that seem like a possibility?

Not really.  palloc uses malloc underneath.

But some Postgres code could be walking off the end of a malloc'ed block, even 
if palloc() is allocating and deallocating correctly.  Which is why I was 
hoping to use valgrind to see what's going on.

Thanks,
Craig



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