Re: Non-reproducible AIO failure

Andres Freund <andres@anarazel.de> writes:
> I just meant that it seems that I can't reproduce it for some as of yet
> unknown reason. I've now been through 3k+ runs of 027_stream_regress, without
> a single failure, so there has to be *something* different about my
> environment than yours.

> Darwin m4-dev 24.1.0 Darwin Kernel Version 24.1.0: Thu Oct 10 21:06:23 PDT 2024;
root:xnu-11215.41.3~3/RELEASE_ARM64_T8132arm64 

> cc -v
> Apple clang version 16.0.0 (clang-1600.0.26.4)
> Target: arm64-apple-darwin24.1.0
> Thread model: posix

> I guess I'll try to update to a later version and see if it repros there?

Maybe.  All the machines I've seen it on are current-software:

$ uname -a
Darwin minim4.sss.pgh.pa.us 24.5.0 Darwin Kernel Version 24.5.0: Tue Apr 22 19:53:27 PDT 2025;
root:xnu-11417.121.6~2/RELEASE_ARM64_T6041arm64 
$ cc -v
Apple clang version 17.0.0 (clang-1700.0.13.3)
Target: arm64-apple-darwin24.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

If it's OS-version-specific, that raises the odds IMO that this
is Apple's fault more than ours.

            regards, tom lane