As reported by Noah, it's possible, although practically very unlikely, that interrupts could be processed in between pgaio_io_reopen() and pgaio_io_perform_synchronously(). Prevent that by explicitly holding interrupts. It also seems good to add an assertion to pgaio_io_before_prep() to ensure that interrupts are held, as otherwise FDs referenced by the IO could be closed during interrupt processing. All code in the aio series currently runs the code with interrupts held, but it seems better to be paranoid. Reviewed-by: Noah Misch <noah@leadboat.com> Reported-by: Noah Misch <noah@leadboat.com> Discussion: https://postgr.es/m/20250324002939.5c.nmisch@google.com
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.