Re: job pipe read: no such process

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Sun, 17 Feb 2019 11:57:24 +0100
    From:        Thomas Klausner <tk%giga.or.at@localhost>
    Message-ID:  <20190217105724.b7itw2iebg2znhei@danbala>

  | I saw a new error today when building -current on 8.99.34/amd64:

  | job pipe read: No such process

That's a weird one.   The error is from make - and indicates that
read() returned <0 with errno == ESRCH (this is in the code that
handles -jN builds I think).   Exactly what that error is supposed
to indicate I have no idea, ESRCH isn't a defined error from read()
and I can't even imagine what it might ever be used for.

The most likely cause would seem to be that a signal was caught, and
did something which changed errno to ESRCH just after a read from
a pipe had failed (presumably for some other reason - and failed,
not just pipe closed/EOF).

If that was what it was, it is not likely to be anything you can
reproduce.

kre