de35a97710
This return code is possible wherever we pass bAlertable = TRUE; it arises when Windows caused the current thread to run an "I/O completion routine" or an "asynchronous procedure call". PostgreSQL does not provoke either of those Windows facilities, hence this bug remaining largely unnoticed, but other local code might do so. Due to a shortage of complaints, no back-patch for now. Per report from Shiv Shivaraju Gowda, this bug can cause PGSemaphoreLock() to PANIC. The bug can also cause select() to report timeout expiration too early, which might confuse pgstat_init() and CheckRADIUSAuth().
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/.