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4da24f12e6
Use a critical section when setting the all-visible flag on an empty page, and WAL-logging it. log_newpage_buffer() contains an assertion that it must be called inside a critical section, and it's the right thing to do when modifying a buffer anyway. Also, the page should be marked dirty before calling log_newpage_buffer(), per the comment in log_newpage_buffer() and src/backend/access/transam/README. Patch by Andres Freund, in response to my report. Backpatch to 9.2, like the patch that introduced these bugs (a6370fd9).
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: http://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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.