Re: Improve LWLock tranche name visibility across backends
Nathan Bossart <nathandbossart@gmail.com>
From: Nathan Bossart <nathandbossart@gmail.com>
To: Sami Imseih <samimseih@gmail.com>
Cc: Alexander Lakhin <exclusion@gmail.com>, Rahila Syed <rahilasyed90@gmail.com>, Bertrand Drouvot <bertranddrouvot.pg@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Andres Freund <andres@anarazel.de>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2025-11-11T19:28:08Z
Lists: pgsql-hackers
Attachments
On Mon, Nov 10, 2025 at 05:17:47PM -0600, Sami Imseih wrote:
> Maybe we can improve the error message by showing
> the "name", like this, In case, there are nested calls.
>
> ```
> else if (!entry->initialized)
> {
> ereport(ERROR,
> (errmsg("requested DSM segment \"%s\" failed initialization", name)));
> }
> ```
Done.
--
nathan
Commits
-
test_dsa: Avoid leaking LWLock tranches.
- c5c74282f2ea 19 (unreleased) landed
-
Teach DSM registry to ERROR if attaching to an uninitialized entry.
- b26d76f64327 18.2 landed
- ac2800ddc185 17.8 landed
- 1165a933aab1 19 (unreleased) landed
-
Add a test harness for the LWLock tranche code.
- 16607718c010 19 (unreleased) landed
-
Revert recent change to RequestNamedLWLockTranche().
- d814d7fc3d52 19 (unreleased) landed
-
Move dynamically-allocated LWLock tranche names to shared memory.
- 38b602b0289f 19 (unreleased) landed
-
Prepare DSM registry for upcoming changes to LWLock tranche names.
- 5487058b56e0 19 (unreleased) landed
-
Add GetNamedDSA() and GetNamedDSHash().
- fe07100e82b0 19 (unreleased) cited