Alias2 has asked for the wisdom of the Perl Monks concerning the following question:

During Padre development, we've had ongoing issues with the Scalars leaked: message. As a result we're fairly sensitive about these messages.

Although I believe I've fixed the latest lot in real code, I always get the leak messages when running Padre in the debugger.

Isolating this down to a snippit, it appears that ALL joining threads throw this message when the debugger is active.

Can anyone explain why this is occurring, and suggest a strategy for preventing the leak (without blindly suppressing it and hiding any other non-debugger caused leaks).

The following is on Strawberry Perl 5.12.3 May 2011.

perl -de 1

Loading DB routines from perl5db.pl version 1.33
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(-e:1):   1
  DB<1> use threads;

  DB<2> threads->new(sub{})->join;
Scalars leaked: 1

  DB<3>

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Re: Can anyone explain the following, and suggest how to supress the message
by Anonymous Monk on Aug 24, 2011 at 04:42 UTC 
    $ perl -de 1

Loading DB routines from perl5db.pl version 1.33
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(-e:1):   1
  DB<1> use threads;

  DB<2> threads->new(sub{})->join;

  DB<3> q

$ pmvers threads
1.83

$ perl -le " print $^V"
v5.14.1

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