| From: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | John Naylor <johncnaylorls(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Improving and extending int128.h to more of numeric.c |
| Date: | 2025-10-24 19:30:09 |
| Message-ID: | CAEZATCUGzWRfM9o75HQjQ1Yp-N89VNr4706mekyUa1cWuht7yw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, 24 Oct 2025 at 15:23, Andres Freund <andres(at)anarazel(dot)de> wrote:
>
> FWIW, there are a few interesting messages on the host of my buildfarm animal:
>
> Aug 19 02:05:31 andres-postgres-buildfarm-v6 kernel: traps: test_int128[1678696] trap divide error ip:55764d59802c sp:7fffc378f7f8 error:0 in test_int128[402c,55764d595000+4000]
> Oct 15 03:08:28 andres-postgres-buildfarm-v6 kernel: traps: test_int128[1984641] trap divide error ip:405a8c sp:7ffc41a93c88 error:0 in test_int128[5a8c,401000+5000]
> Oct 15 20:02:15 andres-postgres-buildfarm-v6 kernel: traps: test_int128[3346617] trap divide error ip:404b4c sp:7ffc709ab658 error:0 in test_int128[4b4c,401000+4000]
>
Ah, I presume this is because there is a small, but non-zero chance
that the test code will attempt to divide by zero, so it needs to make
sure that z32 is non-zero. Will fix.
Regards,
Dean
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