jpulpiano has asked for the wisdom of the Perl Monks concerning the following question:

Hi, I am using threads and perl on Unix + Windows. After a particular number of thread creation/destruction (2 to 15) perl crashes when doing a join.

I saw a similar problem dated from July 2004: http://aspn.activestate.com/ASPN/Mail/Message/perl-win32-users/2131329

Any idea if this problem was corrected on Perl 5.10 ? Any idea if there is any workaround ?

FYI I posted as well on ActiveState forum but I am trying here to just in case this is a Perl problem.

Thanks a lot,
Kind regards,
Jean-Philippe
  • Comment on Activeperl 5.10 + thread + join = random crashes

Replies are listed 'Best First'.
Re: Activeperl 5.10 + thread + join = random crashes
by BrowserUk (Patriarch) on Jun 03, 2009 at 14:50 UTC

    There is no specific problem of this type with either threads, perl 5.10 nor AS Perl 5.10. The following creates and joins 1000 threads (and it'll do 10,000 quite happily except that it will push my machine into swapping):

    perl -Mthreads -E"@t= map async( sub{say threads->tid;sleep10;}),1..1000;$_->join for + @t"

    (Any problem listed on the AS site 5 years ago has long since been fixed. It was probably an entirely different type of threading all together that long ago.

    The problem is almost certainly what you are doing inside the threads. to get a workaraound you need to post the code, or a cut down version that demonstrates your problem.


    Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
    "Science is about questioning the status quo. Questioning authority".
    In the absence of evidence, opinion is indistinguishable from prejudice.