| From: | Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Jakub Glapa <jakub(dot)glapa(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, Fabio Isabettini <fisabettini(at)voipfuture(dot)com>, Arne Roland <A(dot)Roland(at)index(dot)de>, Sand Stone <sand(dot)m(dot)stone(at)gmail(dot)com>, Rick Otten <rottenwindfish(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: dsa_allocate() faliure |
| Date: | 2019-02-11 00:24:38 |
| Message-ID: | CAEepm=269dTFxHEapRhm8vf_GEkjSY_p2oU5Ngp48GZQKwyMnA@mail.gmail.com |
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| Lists: | pgsql-hackers pgsql-performance |
On Mon, Feb 11, 2019 at 10:33 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> I observe from
>
> https://coverage.postgresql.org/src/backend/utils/mmgr/freepage.c.gcov.html
>
> that the edge cases in this function aren't too well exercised by
> our regression tests, meaning that the buildfarm might not prove
> much either way about the correctness of this patch. That is one
> factor pushing me to think we shouldn't risk it. But, taking a
> longer view, is that something that's practical to improve?
Yeah. This is a nice example of code that really deserves unit tests
written in C. Could be good motivation to built the infrastructure I
mentioned here:
--
Thomas Munro
http://www.enterprisedb.com
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