Re: Non-reproducible AIO failure

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: Thomas Munro <thomas.munro@gmail.com>

Cc: Alexander Lakhin <exclusion@gmail.com>, Andres Freund <andres@anarazel.de>, pgsql-hackers@lists.postgresql.org

Date: 2025-05-27T14:10:15Z

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

Thomas Munro <thomas.munro@gmail.com> writes:
> Could you please share your configure options?

The failures on indri and sifaka were during ordinary buildfarm
runs, you can check the animals' details on the website.
(Note those are same host machine, the difference is that
indri uses some MacPorts packages while sifaka is meant to be
a bare-bones-macOS build.)

On the other two, I believe I just used my normal Mac devel
configuration.  On the M4 laptop that's

$ ./configure CC="ccache gcc" CFLAGS="-O2 -fno-common" --enable-debug --enable-cassert --with-bonjour --without-icu --enable-tap-tests --with-system-tzdata=/usr/share/zoneinfo

but I see I haven't quite got the same thing on the M1 mini:

$ ./configure CC="ccache clang" --enable-debug --enable-cassert --enable-tap-tests --with-system-tzdata=/usr/share/zoneinfo

In both cases the compiler is really

$ gcc -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

I did some experimentation with different -O levels to see if that
would make the failure any more or less common.  But I've yet to
reproduce it at anything except -O2.

			regards, tom lane