Max Kirillov <max@xxxxxxxxxx> writes:
> If was found during stress-test run that a test may hang by 60 seconds.
> It supposedly happens because SIGCHILD was received before sleep has
> started.
>
> Fix by looping by smaller chunks, checking $exited after each of them.
> Then lost SIGCHILD would not cause longer delay than 1 second.
>
> Reported-by: SZEDER Gábor <szeder.dev@xxxxxxxxx>
> Signed-off-by: Max Kirillov <max@xxxxxxxxxx>
> ---
> Submitting as proper patch. Note: I believe it does not relate to other issues
> discussed in this thread.
> t/t5562/invoke-with-content-length.pl | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/t/t5562/invoke-with-content-length.pl b/t/t5562/invoke-with-content-length.pl
> index 0943474af2..257e280e3b 100644
> --- a/t/t5562/invoke-with-content-length.pl
> +++ b/t/t5562/invoke-with-content-length.pl
> @@ -29,7 +29,12 @@
> }
> print $out $body_data or die "Cannot write data: $!";
>
> -sleep 60; # is interrupted by SIGCHLD
Ah, of course. If SIGCHLD interrupts, sets $existed in the handler,
then we won't go back to sleep. But if the signal came before the
sleep starts, we spend full 60 seconds here before we check $exited.
Makes sense.
> +my $counter = 0;
> +while (not $exited and $counter < 60) {
> + sleep 1;
> + $counter = $counter + 1;
> +}
> +
> if (!$exited) {
> close($out);
> die "Command did not exit after reading whole body";
