| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
| Cc: | vignesh C <vignesh21(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>, Duncan Sands <duncan(dot)sands(at)deepbluecap(dot)com>, "pgsql-bugs(at)lists(dot)postgresql(dot)org" <pgsql-bugs(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Logical replication 'invalid memory alloc request size 1585837200' after upgrading to 17.5 |
| Date: | 2025-06-24 04:18:45 |
| Message-ID: | 857722.1750738725@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> writes:
> Pushed the fix (d87d07b7ad3). Thank you for working on this fix.
There is something not right about the v13 version of this patch.
BF member trilobite, which builds with -DCLOBBER_CACHE_ALWAYS,
is showing this failure [1]:
diff -U3 /home/buildfarm/trilobite/buildroot/REL_13_STABLE/pgsql.build/contrib/test_decoding/expected/invalidation_distribution.out /home/buildfarm/trilobite/buildroot/REL_13_STABLE/pgsql.build/contrib/test_decoding/output_iso/results/invalidation_distribution.out
--- /home/buildfarm/trilobite/buildroot/REL_13_STABLE/pgsql.build/contrib/test_decoding/expected/invalidation_distribution.out 2025-06-17 10:24:24.382768613 +0200
+++ /home/buildfarm/trilobite/buildroot/REL_13_STABLE/pgsql.build/contrib/test_decoding/output_iso/results/invalidation_distribution.out 2025-06-17 15:01:53.921913314 +0200
@@ -31,7 +31,7 @@
step s2_get_binary_changes: SELECT count(data) FROM pg_logical_slot_get_binary_changes('isolation_slot', NULL, NULL, 'proto_version', '1', 'publication_names', 'pub') WHERE get_byte(data, 0) = 73;
count
-----
- 0
+ 1
(1 row)
I can reproduce that locally if I add -DCLOBBER_CACHE_ALWAYS.
Have not looked for the cause.
regards, tom lane
[1] https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=trilobite&dt=2025-06-17%2008%3A24%3A00
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