RE: Logical replication 'invalid memory alloc request size 1585837200' after upgrading to 17.5

From: "Hayato Kuroda (Fujitsu)" <kuroda(dot)hayato(at)fujitsu(dot)com>
To: 'Masahiko Sawada' <sawada(dot)mshk(at)gmail(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(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>, vignesh C <vignesh21(at)gmail(dot)com>
Subject: RE: Logical replication 'invalid memory alloc request size 1585837200' after upgrading to 17.5
Date: 2025-06-06 06:22:45
Message-ID: OSCPR01MB14966952C546AE32654B84AACF56EA@OSCPR01MB14966.jpnprd01.prod.outlook.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-bugs

Dear Sawada-san,

> > 1.
> > USE_ASSERT_CHECKING has not been used to change the value yet. The main
> usage is
> > to call debug functions in debug build.
>
> I think we have a similar precedent such as MT_NRELS_HASH to improve
> the test coverages.

Oh, good detection, it seems a typical way.

> > 2.
> > If we add tests which is usable only for debug build, it must be run only when it
> > is enabled. IIUC such test does not exist yet.
>
> I think we need to test cases not to check if we reach a specific code
> point but to check if we can get the correct results even if we've
> executed various code paths. As for this bug, it is better to check
> that it works properly in a variety of cases. That way, we can check
> overflow cases and non-overflow cases also in test cases added in the
> future, improving the test coverage more.

Best regards,
Hayato Kuroda
FUJITSU LIMITED

In response to

Responses

Browse pgsql-bugs by date

  From Date Subject
Next Message PG Bug reporting form 2025-06-06 06:39:26 BUG #18947: TRAP: failed Assert("len_to_wrt >= 0") in pg_stat_statements
Previous Message Michael Paquier 2025-06-06 05:54:40 Re: BUG #18943: Return value of a function 'xmlBufferCreate' is dereferenced at xpath.c:177 without checking for NUL