Thomas Munro <thomas.munro@gmail.com> writes:
> While testing with that module I found another bug: the
> per-participant npages counter was not explicitly initialised to zero
> in sts_initialize(). That wasn't exactly a problem when the code was
> written because new DSM memory is always zeroed and this always
> happens in new DSM memory, but it shows up in this test module because
> it uses palloc() memory instead. It *is* a problem since v14, if you
> use min_dynamic_shared_memory for a pool of recyclable shared memory,
> because then it is not zeroed.
That's a fairly scary observation. What other places are silently
expecting such memory to be zeroed? Do we need to fix things so
that min_dynamic_shared_memory doesn't break this API?
regards, tom lane