Andres Freund <andres(at)anarazel(dot)de> writes:
> I downloaded the RHEL6 srpm, and it appears to be patched to
> automatically disable pymalloc when running under valgrind (via
> disable-pymalloc-on-valgrind-py26.patch). That explains why you're
> seing the problem, but skink isn't (it's running debian).
Hah. I suspected Red Hat had done something to hide the issue, but
didn't get around to investigating yet. Anyway, it's clearly a real
bug, even if skink is failing to find it.
regards, tom lane