Re: conchuela timeouts since 2021-10-09 system upgrade

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: Andrey Borodin <x4mmm(at)yandex-team(dot)ru>
Cc: Noah Misch <noah(at)leadboat(dot)com>, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org>, Michael Paquier <michael(at)paquier(dot)xyz>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Geoghegan <pg(at)bowt(dot)ie>, Andres Freund <andres(at)anarazel(dot)de>
Subject: Re: conchuela timeouts since 2021-10-09 system upgrade
Date: 2021-11-19 04:52:59
Message-ID: CA+hUKG+UZi3tp=e0ffO1R7eZ=x8azSJDNzO0E2zOy9PhuyOpAQ@mail.gmail.com
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On Fri, Nov 19, 2021 at 5:09 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
> (gdb) print *writefds
> $3 = {fds_bits = {0 <repeats 16 times>}}

Oops, that was after it had been cleared already by the OS; duh. On
entry to my wrapper, writefds does in fact contain the bit pattern for
fd 13. That led me to try a very simply C program which runs to
completion on Linux and FreeBSD, but hangs forever on Dragonfly.

Attachment Content-Type Size
test.c text/x-csrc 944 bytes

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