Given that you're using duration logging and JDBC, I wonder whether you didn't trip over this recently-identified bug: http://archives.postgresql.org/pgsql-hackers/2006-08/msg00815.php Patch is here: http://archives.postgresql.org/pgsql-committers/2006-08/msg00278.php
Sorry but didn't, but I noticed this: Also I must notice that the segfault only occur if log_min_duration_statement is set to 0 It's currently 1000, so will the patch help ?Regards, Poul