On 2/10/23 9:08 PM, Jon Erdman wrote: > On 2/10/23 3:05 PM, Tom Lane wrote: >> Jeffrey Walton <noloader@xxxxxxxxx> writes: >>> On Fri, Feb 10, 2023 at 10:04 AM Tom Lane <tgl@xxxxxxxxxxxxx> wrote: >>>> You have to valgrind the whole cluster AFAIK. Basically, start >>>> the postmaster under valgrind with --trace-children=yes. >>>> For leak tracking you probably also want >>>> --leak-check=full --track-origins=yes --read-var-info=yes >> >>> One additional comment... the program in question and PostgreSQL >>> should also be built with -g -O1 per >>> https://valgrind.org/docs/manual/quick-start.html . Otherwise, there's >>> a risk the line information will not be accurate or usable. >> >> Yeah. Also, you need to compile Postgres with -DUSE_VALGRIND >> if you want valgrind to have any idea about palloc/pfree. > > Thanks much both of you! I'll report back how it goes ;) FYI folks: once I got the build done properly (valgrind brew wouldn't install on OSX) on linux, I was able to find and fix my leaks. They were from not calling pfree on StringInfo.data. -- Jon Erdman (aka StuckMojo) PostgreSQL Zealot