GNU bug report logs - #71942
30.0.60; Intermittent failure in process-tests

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: john muhl <jm <at> pub.pink>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.60; Intermittent failure in process-tests
Date: Thu, 04 Jul 2024 14:34:42 -0500

[Message part 1 (text/plain, inline)]

The failure is in ‘process-tests/sentinel-with-multiple-processes’
and happens on all the configurations being tested. It happens in
both ‘make check’ and running the test individually. It can be
reproduced using a script like:

  #!/usr/bin/env bash
  echo OK >> ~/tmp/process-tests.txt
  cd ~/src/emacs
  rm -f test/src/process-tests.log
  make test/src/process-tests.log

and the command ‘watch -e script.sh’. For an idea how often it
fails here are the results of five runs of the above on two
different machines:

  wc -l process-tests-*.txt
    157 process-tests-1.txt
    259 process-tests-2.txt
    329 process-tests-3.txt
    112 process-tests-4.txt
     96 process-tests-5.txt
    950 total

  wc -l process-tests-*.txt
     11 process-tests-1.txt
     14 process-tests-2.txt
      9 process-tests-3.txt
     11 process-tests-4.txt
     11 process-tests-5.txt
     56 total

[process-tests-1.log (text/plain, attachment)]

[process-tests-2.log (text/plain, attachment)]

Message #8 received at 71942 <at> debbugs.gnu.org (full text, mbox):

From: Andrea Corallo <acorallo <at> gnu.org>
To: john muhl <jm <at> pub.pink>
Cc: Philipp Stephani <phst <at> google.com>, 71942 <at> debbugs.gnu.org
Subject: Re: bug#71942: 30.0.60; Intermittent failure in process-tests
Date: Fri, 05 Jul 2024 03:55:06 -0400

john muhl <jm <at> pub.pink> writes:

> The failure is in ‘process-tests/sentinel-with-multiple-processes’
> and happens on all the configurations being tested. It happens in
> both ‘make check’ and running the test individually. It can be
> reproduced using a script like:
>
>   #!/usr/bin/env bash
>   echo OK >> ~/tmp/process-tests.txt
>   cd ~/src/emacs
>   rm -f test/src/process-tests.log
>   make test/src/process-tests.log
>
> and the command ‘watch -e script.sh’. For an idea how often it
> fails here are the results of five runs of the above on two
> different machines:
>
>   wc -l process-tests-*.txt
>     157 process-tests-1.txt
>     259 process-tests-2.txt
>     329 process-tests-3.txt
>     112 process-tests-4.txt
>      96 process-tests-5.txt
>     950 total
>
>   wc -l process-tests-*.txt
>      11 process-tests-1.txt
>      14 process-tests-2.txt
>       9 process-tests-3.txt
>      11 process-tests-4.txt
>      11 process-tests-5.txt
>      56 total

Hi john,

what happens you increase the 10 seconds sleep-for into
process-tests/sentinel-with-multiple-processes?

Cc-ing Philipp

  Andrea

Message #11 received at 71942 <at> debbugs.gnu.org (full text, mbox):

From: john muhl <jm <at> pub.pink>
To: Andrea Corallo <acorallo <at> gnu.org>
Cc: Philipp Stephani <phst <at> google.com>, 71942 <at> debbugs.gnu.org
Subject: Re: bug#71942: 30.0.60; Intermittent failure in process-tests
Date: Fri, 05 Jul 2024 11:30:13 -0500

Andrea Corallo <acorallo <at> gnu.org> writes:
>
> what happens you increase the 10 seconds sleep-for into
> process-tests/sentinel-with-multiple-processes?

Tried with 100 and 1000. It doesn’t change much.

  # (sleep-for 10)
  wc -l process-tests-*.txt
    157 process-tests-1.txt
    259 process-tests-2.txt
    329 process-tests-3.txt
    112 process-tests-4.txt
     96 process-tests-5.txt
    950 total

  # (sleep-for 100)
  wc -l process-tests-*.txt
     29 process-tests-1.txt
     70 process-tests-2.txt
     93 process-tests-3.txt
    553 process-tests-4.txt
    262 process-tests-5.txt
   1007 total

  # (sleep-for 1000)
  wc -l process-tests-*.txt
     34 process-tests-1.txt
    196 process-tests-2.txt
     94 process-tests-3.txt
    132 process-tests-4.txt
    250 process-tests-5.txt
    706 total

  # (sleep-for 10)
  wc -l process-tests-*.txt
     11 process-tests-1.txt
     14 process-tests-2.txt
      9 process-tests-3.txt
     11 process-tests-4.txt
     11 process-tests-5.txt
     56 total

  # (sleep-for 100)
  wc -l process-tests-*.txt
    139 process-tests-1.txt
     15 process-tests-2.txt
     57 process-tests-3.txt
    106 process-tests-4.txt
    105 process-tests-5.txt
    422 total

  # (sleep-for 1000)
  wc -l process-tests-*.txt
    117 process-tests-1.txt
    207 process-tests-2.txt
     24 process-tests-3.txt
     15 process-tests-4.txt
     11 process-tests-5.txt
    374 total

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