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1. Since commit b1a9bad9e744 we had pstrdup() inside a spinlock-protected critical section; reported by Andreas Seltenreich. Turn those into strlcpy() to stack-allocated variables instead. Backpatch to 9.6. 2. Since commit 9ed551e0a4fd we had a pfree() uselessly inside a spinlock-protected critical section. Tom Lane noticed in code review. Move down. Backpatch to 9.6. 3. Since commit 64233902d22b we had GetCurrentTimestamp() (a kernel call) inside a spinlock-protected critical section. Tom Lane noticed in code review. Move it up. Backpatch to 9.2. 4. Since commit 1bb2558046cc we did elog(PANIC) while holding spinlock. Tom Lane noticed in code review. Release spinlock before dying. Backpatch to 9.2. Discussion: https://postgr.es/m/87h8vhtgj2.fsf@ansel.ydns.eu
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/.