Re: Non-reproducible AIO failure

Konstantin Knizhnik <knizhnik@garret.ru>

From: Konstantin Knizhnik <knizhnik@garret.ru>

To: Andres Freund <andres@anarazel.de>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-06-16T11:11:39Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

aio: Stop using enum bitfields due to bad code generation
- ce161b194e84 18.0 landed
- 5865150b6d53 19 (unreleased) landed
amcheck: Fix posting tree checks in gin_index_check()
- 0cf205e122ae 18.0 cited
aio: Add missing memory barrier when waiting for IO handle
- e9a3615a5224 18.0 landed

One more update: with the proposed patch (memory barrier before 
`ConditionVariableBroadcast` in `pgaio_io_process_completion` and 
replacing bit fields with `uint8`) the problem is not reproduced at my 
system during 50000 seconds.