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Re: pg_upgrade of 11 -> 13: free(): invalid pointer

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On Tue, Nov 17, 2020 at 02:44:47PM -0500, Bruce Momjian wrote:
> On Tue, Nov 17, 2020 at 11:59:10AM -0500, Jeremy Wilson wrote:
> > pg_restore: WARNING:  terminating connection because of crash of another server process
> > DETAIL:  The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
> > HINT:  In a moment you should be able to reconnect to the database and repeat your command.
> > pg_restore: creating COMMENT "public.FUNCTION "st_isempty"("rast" "public"."raster")"
> > pg_restore: while PROCESSING TOC:
> > pg_restore: from TOC entry 5338; 0 0 COMMENT FUNCTION "st_isempty"("rast" "public"."raster") postgres
> > pg_restore: error: could not execute query: server closed the connection unexpectedly
> >         This probably means the server terminated abnormally
> >         before or while processing the request.
> > Command was: COMMENT ON FUNCTION "public"."st_isempty"("rast" "public"."raster") IS 'args: rast - Returns true if the raster is empty (width = 0 and height = 0). Otherwise, returns false.’;
> 
> My guess is that this is a crash in the PostGIS shared library.  I would
> ask the PostGIS team if they know of any crash cases, and if not, I
> think you need to do a pg_dump of the database and test-load it into a
> new database to see what query makes it fail, and then load debug
> symbols and do a backtrace of the stack at the point of the crash. 
> Yeah, not fun.

Actually pg_dump --schema-only is what you want to dump and load into a
separate databsae.   No need to dump the data.

-- 
  Bruce Momjian  <bruce@xxxxxxxxxx>        https://momjian.us
  EnterpriseDB                             https://enterprisedb.com

  The usefulness of a cup is in its emptiness, Bruce Lee






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