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Commit 7389aad6 removed the notion of backends started from inside a signal handler. A stray comment still referred to them, while explaining the need for a call to set_stack_base(). That leads to the question of whether we still need the call in !EXEC_BACKEND builds. There doesn't seem to be much point in suppressing it now, as it doesn't hurt and probably helps to measure the stack base from the exact same place in EXEC_BACKEND and !EXEC_BACKEND builds. Back-patch to 16. Reported-by: Heikki Linnakangas <hlinnaka@iki.fi> Reported-by: Tristan Partin <tristan@neon.tech> Reported-by: Andres Freund <andres@anarazel.de> Discussion: https://postgr.es/m/CA%2BhUKG%2BEJHcevNGNOxVWxTNFbuB%3Dvjf4U68%2B85rAC_Sxvy2zEQ%40mail.gmail.com
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.