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v14 commit1f95181b44and its v13 equivalent caused timing-dependent failures in archive recovery, at restartpoints. The symptom was "invalid magic number 0000 in log segment X, offset 0", "unexpected pageaddr X in log segment Y, offset 0" [X < Y], or an assertion failure. Commit3635a0a35aand predecessors back-patched v15 changes to fix that. This test reproduces the problem probabilistically, typically in less than 1000 iterations of the test. Hence, buildfarm and CI runs would have surfaced enough failures to get attention within a day. Reported-by: Arun Thirupathi <arunth@google.com> Discussion: https://postgr.es/m/20250306193013.36.nmisch@google.com Backpatch-through: 13
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/.