Re: Misc. consequences of backend memory management changes

Tom Lane wrote:

> 2. Currently there is some code in aset.c that arranges to wipe
> freed space immediately upon its being freed, as an aid in detecting
> attempted uses of already-freed objects. It's conditionally compiled
> based on "#ifdef CLOBBER_FREED_MEMORY", which ought to be mentioned
> in config.h.in (but isn't yet). This slows things down a little bit
> so I wouldn't recommend having it turned on for production use, but
> I think it would be a good idea to keep it turned on during the
> development and early beta phases of 7.1. With the memory
> management changes I think we will be at increased risk of having
> use-of-freed-memory bugs, so I'd like to get as much testing as
> possible done with this code enabled. Will anyone object if I make
> CLOBBER_FREED_MEMORY defined by default until 7.1 release is near?

Could we instead have some configure option --devel or something that
turns on all the checks?