It is possible that Storable was installed such that the 5.8 version of the compiled part of the code was attempted to be used by the 5.10 version of Perl? Nah, that seems unlikely to happen and unlikely to be the cause of your complaint.

In trying to reproduce your problem, I did notice a bug in the 5.10 debugger. The handling of "constant" subroutines appears to have changed in 5.10 and they now cause the code that looks for subroutine names to die: 

 > perl5.10 -del

Loading DB routines from perl5db.pl version 1.3

  DB<1> o die=0
  DB<2> use Storable
  DB<3> m Storable
Not a subroutine reference at /usr/lib/perl5/5.10/perl5db.pl line 7934
+.
Debugged program terminated.  ...

[download]

But I was unable to reproduce any of the problems you complained of (but this was on cygwin -- not having a 5.10+Ubuntu combination handy).

The standard route when you run into core dumps is to upgrade or downgrade the item that is core dumping. In this case, I would probably build and install my own copy of Perl from source (since it is standard wisdom to let Linux have whatever version of Perl it wants and to give yourself a separate version of Perl that you can mess with without surprising the parts of Linux that expected the shipped-with Perl to be there).

- tye        

In reply to Re: Debugger problem in 5.10 (replace) by tye
in thread Debugger problem in 5.10 by duoxi

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