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9f84280ae9
That commit increased all shared memory allocations to the next higher multiple of PG_CACHE_LINE_SIZE, but it didn't ensure that allocation started on a cache line boundary. It also failed to remove a couple other pieces of now-useless code. BUFFERALIGN() is perhaps obsolete at this point, and likely should be removed at some point, too, but that seems like it can be left to a future cleanup. Mistakes all pointed out by Andres Freund. The patch is mine, with a few extra assertions which I adopted from his version of this fix.
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. 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/.