Thomas Munro <thomas.mu...@gmail.com> writes: > Can you get a core and print *ioh in the debugger?
So far, I've failed to get anything useful out of core files from this failure. The trace goes back no further than (lldb) bt * thread #1 * frame #0: 0x000000018de39388 libsystem_kernel.dylib`__pthread_kill + 8 That's quite odd in itself: while I don't find the debugging environment on macOS to be the greatest, it's not normally this unhelpful. I have managed to reproduce the "aio_ret->result.status != PGAIO_RS_UNKNOWN" crash about five times in total on three different Apple Silicon machines (an M1 mini, an M4 Pro mini, and an M4 Pro laptop). So there is definitely something wrong. The failure rate is pretty tiny for me, though I've not tried running several test instances concurrently. regards, tom lane