Hello hackers,
05.10.2026 18:48, Heikki Linnakangas wrote:
On 20/08/2026 15:09, Nazir Bilal Yavuz wrote:
On Fri, 24 Jul 2026 at 10:07, Harrison Booth <[email protected]> wrote:
On native Windows ARM64, the ECPG thread/alloc test could hang until
Meson's 1000-second timeout. The cause was a race in the Windows pthread
mutex emulation.
I ran into this exact issue today [1] and found your thread.
Is there some memory ordering reason why this only happens on ARM64? AFAICS, it
could happen on x86 too.
FWIW, it also occurred on AMD64 animal hamerkop (twice in this year):
[1]
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=hamerkop&dt=2026-09-24%2014%3A35%3A01
[2] https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=hamerkop&dt=2026-03-26%2015%3A35%3A04 (ecpgCheck [fb072e1]
(01:10:46))
I also managed to reproduce the hang locally, running 6 ecpg tests
concurrently on a Windows x86_64 VM, so I can test the patch if needed.
Best regards,
Alexander
