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Perl Error Attempt To Free Unreferenced Scalar

All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. Any comments? Where's the 0xBEEF? Could you please consider these patches for 2.0.6, or let me know if I've got it all wrong. have a peek at these guys

Copy sent to Debian Perl Group . (Sun, 04 Dec 2011 11:45:24 GMT) Full text and rfc822 format available. Reply sent to Dominic Hargreaves : You have taken responsibility. (Sat, 14 Jan 2012 19:21:17 GMT) Full text and rfc822 format available. MikeLacey (MIS) 19 Mar 07 11:06 Hi lichtjiang,That "sounds" like a Perl bug - Are you running the latest version? DEBPKG:debian/deprecate-with-apt - http://bugs.debian.org/580034 Point users to Debian packages of deprecated core modules DEBPKG:fixes/hurd-ccflags - [a190e64] http://bugs.debian.org/587901 [perl #92244] Make hints/gnu.sh append to $ccflags rather than overriding them DEBPKG:debian/squelch-locale-warnings - http://bugs.debian.org/508764 Squelch http://blog.booking.com/the-dreaded-attempt-to-free-unreferenced-scalar.html

Home | New | Search | [?] | Reports | Requests | Help | NewAccount | Log In [x] | Forgot Password Login: [x] | Report Bugzilla Bug Legal Login with If it fixes the (extensive) test suite, it's probably a reasonable candidate for an upload to unstable, I'd have thought? This could indicate that SvREFCNT_dec() was called too many times, or that SvREFCNT_inc() was called too few times, or that the SV was mortalized when it shouldn't have been, or that Socks just get in the wayResults (302 votes).

OK, looks like any code will trigger the messages. The > test suite passes, but >  % grep unreferenced t/logs/error_log|wc -l >  30 Can you post some of that error log which shows the error? > This seems related to Attempt to free unreferenced scalar: SV 0x7b80010, Perl interpreter: 0x7a1e2f0 during global destruction. for simplicity, there are 2 perl script files: test.pl and test.pm. _test.pl_ use threads; use test; my $argument=1; my $thread=threads->create("forthread", ($argument)); $thread->join(); exit(0); [download] _test.pm_ package test; require Exporter; our @ISA

Was the Boeing 747 designed to be supersonic? This is great for performance and to avoid fragmentation of memory. Already a member? http://stackoverflow.com/questions/24382541/what-is-this-error-attempt-to-free-unreferenced-scalar My limited understanding is that the CV pointer needs its refcount incremented along with the GvCV_set() call.

Human vs apes: What advantages do humans have over apes? "Have permission" vs "have a permission" What is a tire speed rating and is it important that the speed rating matches lichtjiang (Programmer) (OP) 18 Mar 07 11:32 I got the following message when one of my perl program exits (it runs multiple threads simultaneously, it has several variable of typess of Talk With Other Members Be Notified Of ResponsesTo Your Posts Keyword Search One-Click Access To YourFavorite Forums Automated SignaturesOn Your Posts Best Of All, It's Free! warning message?

And when you post demo code, it would be nice if it actually worked to demonstrate the problem described :) test.pm is a bad choice of module/package name. check over here my ($arg)[email protected]_; return 0; } #forthread ## You have no module termination value, 1; [download] All of which leads me to believe that you aren't actually running this module when you On top of that, we can ask Perl to overwrite derelict memory areas with a known pattern (0xEF) to avoid obscuring errors by reusing memory previously used for SVs. Perl uses slab allocation to avoid going to the OS for each and every SV it creates since many OS malloc implementations are deficient.

PerlMonks parthenogenetically spawned by Tim Vroom. More about the author Fill in the Minesweeper clues How do I replace and (&&) in a for loop? Perhaps you can cut out chunks of your program until you find something that makes a difference in behavior; that should help you isolate the problem. Date: Sun, 4 Dec 2011 19:31:50 +0400 [Message part 1 (text/plain, inline)] >> Package: libapache2-mod-perl2 >> Version: 2.0.5-4+b1 >> After upgrading perl to 5.14 mod-perl began complain: >> $ sudo invoke-rc.d

Message #88 received at [email protected] (full text, mbox, reply): From: Fred Moyer To: Niko Tyni Cc: [email protected], [email protected] Subject: Re: [RELEASE CANDIDATE]: mod_perl-2.0.6 RC1 Date: Mon, 13 Feb 2012 Acknowledgement sent to Niko Tyni : Extra info received and forwarded to list. share|improve this answer edited Jun 24 '14 at 14:33 answered Jun 24 '14 at 12:53 LeoNerd 6,4771227 is there any method to find out which variable at address 0x15810d8 http://back2cloud.com/perl-error/perl-error-in-option-spec-scalar.php But when we put "forthread" in a separate file other than the caller file, it reports the above warning message, in fact, no matter if we pass any argument at time

Not the answer you're looking for? Consequence Error message on stderr: Attempt to free unreferenced scalar: SV 0x7b5a840, Perl interpreter: 0x7a1e2f0 during global destruction. MikeLacey (MIS) 28 Mar 07 08:14 Hi,If you say:my $dummy = 1;threads->create("B::c", ($dummy));does that still give you an error?

Oboukhov" Date: Thu, 1 Dec 2011 19:39:01 UTC Severity: normal Found in version libapache2-mod-perl2/2.0.5-4 Fixed in version libapache2-mod-perl2/2.0.5-5 Done: Dominic Hargreaves Bug is archived.

Also, your code is way too small to make any observations about what's going wrong. DEBPKG:debian/m68k_thread_stress - http://bugs.debian.org/517938 http://bugs.debian.org/495826 Disable some threads tests on m68k for now due to missing TLS. I see. What to do with my pre-teen daughter who has been out of control since a severe accident?

threads->new(sub { "B::c", $dummy++ })->join; I really want to run a thread based on codes in different files other than the caller.[reply][d/l] Back to Seekers of Perl Wisdom Red Hat Customer Grayscale not working in simple TikZ sort command : -g versus -n flag Why not to cut into the meat when scoring duck breasts? Thanks for noticing this. > If it fixes the (extensive) test suite, it's probably a reasonable > candidate for an upload to unstable, I'd have thought? news Reported by: "Dmitry E.

Hot Network Questions I am designing a new exoplanet. Thanks for your work, -- Niko Tyni [email protected] [0001-Fix-a-reference-counting-bug-uncovered-by-Perl-5.13..patch (text/x-diff, attachment)] [0002-Fix-another-reference-counting-bug-uncovered-by-Perl.patch (text/x-diff, attachment)] Information forwarded to [email protected], Debian Perl Group : Bug#650675; Package libapache2-mod-perl2. (Sat, 11 Feb 2012 17:51:03 GMT) Should they? Date: Thu, 1 Dec 2011 23:37:37 +0400 [Message part 1 (text/plain, inline)] Package: libapache2-mod-perl2 Version: 2.0.5-4+b1 Hi!

This fixes all the remaining 24 > warnings in t/logs/error_log after running the whole test suite. RE: what is "Attempt to free unreferenced scalar"? View Responses Resources Overview Security Blog Security Measurement Severity Ratings Backporting Policies Product Signing (GPG) Keys Discussions Red Hat Enterprise Linux Red Hat Virtualization Red Hat Satellite Customer Portal Private Groups If you have further comments please address them to [email protected], and the maintainer will reopen the bug report if appropriate.