On Sun, Oct 12, 2025 at 2:00 AM Alexander Lakhin <[email protected]> wrote: > 2025-10-11 11:34:46.793 GMT [1169773:1] PANIC: !!!pgaio_io_wait| ioh->state > changed from 0 to 1 at iteration 0 > # no other iteration number observed
Can you please disassemble pgaio_io_update_state() and pgaio_io_was_recycled()? I wonder if the memory barriers are not being generated correctly, causing the state and generation to be loaded out of order, or something like that... The previous failure on greenfly was a TIMEOUT in the same test, as if a query was hanging. I've also been trying to understand two failures on CI on x86 with the same symptom, but that might be something else, hard to say yet... https://cirrus-ci.com/task/5551651043409920 https://www.postgresql.org/message-id/CA%2BhUKG%2BHh7u3YpPLKQS%2BB7KJu0Bw99EjhuPuvBRVccDfgod95g%40mail.gmail.com
