ProcessIncomingNotify is called from the main processing loop that
normally runs in MessageContext. That outer-loop code assumes that
whatever it allocates will be cleaned up when we're done processing
the current client message --- but if we service a notify interrupt,
then whatever gets allocated before the next switch into
MessageContext will be permanently leaked in TopMemoryContext,
because CommitTransactionCommand sets CurrentMemoryContext to
TopMemoryContext. There are observable leaks associated with
(at least) encoding conversion of incoming queries and parameters
attached to Bind messages.
sinval catchup interrupts have a similar problem. There might be
others, but I've not identified any other clear cases.
To fix, take care to save and restore CurrentMemoryContext across
the Start/CommitTransactionCommand calls in these functions.
Per bug #18512 from wizardbrony. Commit to back branches only;
in HEAD, this was dealt with by the riskier but more thoroughgoing
approach in commit
|
2 years ago | |
|---|---|---|
| config | jit: Remove {llvm-config,clang}-N configure probes. | 2 years ago |
| contrib | Unify some error messages | 2 years ago |
| doc | Rename standby_slot_names to synchronized_standby_slots. | 2 years ago |
| src | Preserve CurrentMemoryContext across notify and sinval interrupts. | 2 years ago |
| .cirrus.star | Remove duplicate words in docs and code comments. | 3 years ago |
| .cirrus.tasks.yml | ci: windows: Use the same image for VS and MinGW tasks | 2 years ago |
| .cirrus.yml | ci: Make compute resources for CI configurable | 3 years ago |
| .dir-locals.el |
…
|
|
| .editorconfig |
…
|
|
| .git-blame-ignore-revs |
Add da256a4a7 to .git-blame-ignore-revs.
|
2 years ago |
| .gitattributes | Remove non-existing file from .gitattributes | 2 years ago |
| .gitignore | Update top-level .gitignore. | 4 years ago |
| COPYRIGHT | Update copyright for 2024 | 2 years ago |
| GNUmakefile.in | Allow selecting the git revision to be packaged by "make dist". | 2 years ago |
| HISTORY |
…
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| Makefile | Adapt REL_17_STABLE to its new status as a stable branch | 2 years ago |
| README.md | Adapt REL_17_STABLE to its new status as a stable branch | 2 years ago |
| aclocal.m4 | autoconf: Move export_dynamic determination to configure | 4 years ago |
| configure | Stamp 17beta2. | 2 years ago |
| configure.ac | Stamp 17beta2. | 2 years ago |
| meson.build | Stamp 17beta2. | 2 years ago |
| meson_options.txt | Allow selecting the git revision to be packaged by "make dist". | 2 years ago |
README.md
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/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/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/.