Matt Magoffin <postgresql....@msqr.us> writes:
> On 5/12/2021, at 5:16 AM, Tom Lane <t...@sss.pgh.pa.us> wrote:
>> Are you testing in an --enable-cassert build? If not, do that;
>> it might make the cause of the crashes more apparent, thanks to
>> CLOBBER_FREED_MEMORY and other debug support.
> I did build with --enable-cassert, and I did see the state argument pointer
> passed to numeric_avg_accum
> as 0x7f7f7f7f7f, so now I understand why that was thanks to seeing the
> information about what that means on the Dev FAQ, thanks for that.
So that probably means that you weren't careful about allocating your
own state data in the long-lived context (agg_context), and so it
got freed between calls.
regards, tom lane
