| From: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
|---|---|
| To: | Sami Imseih <samimseih(at)gmail(dot)com> |
| Cc: | pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: GetNamedLWLockTranche crashes on Windows in normal backend |
| Date: | 2025-09-08 18:24:32 |
| Message-ID: | aL8fYNxLg_AFOwaZ@nathan |
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| Lists: | pgsql-hackers |
On Mon, Sep 08, 2025 at 11:55:14AM -0500, Nathan Bossart wrote:
> I've started preparing this for commit, and I realized that restricting
> GetNamedLWLockTranche() to shmem_startup_hook is not sufficient.
> EXEC_BACKEND builds will run this hook in every backend, so unless it's
> guarded behind some sort of "if (!found)" condition (i.e., only run in the
> postmaster), it'll still crash. I think we just need to add some extra
> notes to the docs and check for !IsUnderPostmaster, as discussed upthread.
Or... what if we just moved the request array to shared memory?
--
nathan
| Attachment | Content-Type | Size |
|---|---|---|
| v3-0001-Move-named-LWLock-tranche-request-array-to-shared.patch | text/plain | 4.7 KB |
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