Hello Sawada-san,
31.07.2026 06:49, Masahiko Sawada wrote:
What does the buildfarm member produce the above logs? Many buildfarm
members failed with that error due to commit 6a80179f6b0, but I've not
seen further failures since pushing commit 18f9785e0b3.
It took 3 months for buildfarm animals to discover an instability of the
fixed test:
[03:38:56.925](0.036s) # injection_point 'logical-decoding-activation' is
reached
[03:38:56.997](0.072s) ok 37 - the activation process aborted
[03:38:57.013](0.016s) # connect output:
# {
# 'stderr' => 'background_psql: ready
# ',
# 'stdout' => 'background_psql: ready
# '
# }
[03:42:33.612](216.599s) # poll_query_until timed out executing this query:
#
# SELECT count(*) > 0 FROM pg_stat_activity
# WHERE backend_type = 'client backend' AND wait_event =
'logical-decoding-activation'
#
# expecting this output:
# t
# last actual query output:
# f
# with stderr:
[03:42:33.613](0.000s) # die: timed out when waiting for client backend to reach wait event
'logical-decoding-activation' at /home/bf/bf-build/melonworm/HEAD/pgsql/src/test/recovery/t/051_effective_wal_level.pl
line 515.
[03:42:33.613](0.000s) 1..37
timed out when waiting for client backend to reach wait event 'logical-decoding-activation' at
/home/bf/bf-build/melonworm/HEAD/pgsql/src/test/recovery/t/051_effective_wal_level.pl line 515.
I can reproduce this reliably with a simple sleep:
@@ -180,6 +180,7 @@ injection_points_cleanup(int code, Datum arg)
if (!injection_point_local)
return;
+pg_usleep(1000000);
/* Detach all the local points */
foreach(lc, inj_list_local)
{
Could you please have a look?
`check-world` with this sleep reveals also other tests suffering from the
same disease:
src/test/modules/test_misc/t/010_index_concurrently_upsert.pl
repack_toast
repack_missingval
repack_temporal
repack_temporal_multirange
[1]
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=melonworm&dt=2026-10-30%2002%3A36%3A29
Best regards,
Alexander
