On Wed, Feb 8, 2023 at 2:52 PM Thomas Munro <thomas.mu...@gmail.com> wrote: > On Wed, Feb 8, 2023 at 2:28 PM Andres Freund <and...@anarazel.de> wrote: > > TRAP: failed Assert("PMSignalState->PMChildFlags[slot] == > > PM_CHILD_ASSIGNED"), File: "../src/backend/storage/ipc/pmsignal.c", Line: > > 329, PID: 5948
I was wondering if commit 18a4a620 might be relevant, as it touched the management of those slots a few months ago, but then I found a couple of matches from 2021 in my database of build farm assertion failures: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=fairywren&dt=2021-08-12%2010:38:56 https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=fairywren&dt=2021-09-28%2016:40:49 Fairywren is a Windows + msys2 system, so it doesn't share Cygwin's signal system, it's running the pure Windows code (though it's GCC instead of MSVC and has a different libc, it's using our Windows native code paths and defines WIN32).