Horton

Re: [buildfarm related] Machines gcc experimental failed test_lfind

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Nathan Bossart <nathandbossart@gmail.com>
Cc: John Naylor <johncnaylorls@gmail.com>, "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>, "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>
Date: 2025-11-26T16:10:31Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Optimize vector8_has_le() on AArch64.

  2. Properly fix AVX-512 CRC calculation bug

Nathan Bossart <nathandbossart@gmail.com> writes:
> It looks like the failures are limited to AArch64, and commit f8f4afe did
> change the code in question a bit.  However, there are failures on older
> PG versions where that commit was not applied, so the evidence does seem to
> point to a compiler bug.

The present failures started much more recently than f8f4afe ...
leafhopper, for example, was okay until about a day ago.
Also, AFAICS f8f4afe was HEAD-only, but leafhopper is also
failing in v18.  (No evidence as yet about older branches.)

Anyway, this is exactly the sort of analysis that we shouldn't
be doing.

			regards, tom lane