59c02a36f0
Initialization of the first XLOG buffer at end-of-recovery was broken for the case that the last read WAL record ended at a page boundary. Instead of trying to copy the last full xlog page to the buffer cache in that case, just set shared state so that the next page is initialized when the first WAL record after startup is inserted. (that's what we did in earlier version, too) To make the shared state required for that case less surprising, replace the XLogCtl->curridx variable, which was the index of the latest initialized buffer, with an XLogRecPtr of how far the buffers have been initialized. That also allows us to get rid of the XLogRecEndPtrToBufIdx macro. While we're at it, make a similar change for XLogCtl->Write.curridx, getting rid of that variable and calculating the next buffer to write from XLogCtl->LogwrtResult instead.
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/.