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in reply to Re^2: Tracking down memory leaks in Perl Devel::Leak
in thread Tracking down memory leaks in Perl Devel::Leak

That I am unlikely to be able to help you with. I don't have Perl built with debugging.

At a random guess, you need to both have a debugging perl and you need to have compiled Devel::Leak against it. If you install a debugging Perl and Devel::Leak using apt-get, I would expect that copy of Devel::Leak to not understand that it has access to debugging information.