Bug#764457: perl: segfault in Dumper.so after upgrading to 5.20

[Damyan Ivanov]

(not a perl maintainer here)

-=| Florian Ernst, 08.10.2014 12:08:42 +0200 |=-
> Package: perl-base
> Version: 5.20.1-1
> File: /usr/bin/perl
> …
> 
> and with now-current perl 5.20.1-1
> …
>
> Reading symbols from /usr/bin/perl...(no debugging symbols found)...done.
> [New LWP 10098]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> Core was generated by `perl -x /usr/bin/thruk --local -a report=1'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x00007f8098fcacee in boot_Data__Dumper () from /usr/lib/thruk/perl5/x86_64-linux-gnu-thread-multi/auto/Data/Dumper/Dumper.so
> (gdb) bt
> #0  0x00007f8098fcacee in boot_Data__Dumper () from /usr/lib/thruk/perl5/x86_64-linux-gnu-thread-multi/auto/Data/Dumper/Dumper.so
> #1  0x00007f809a3045ab in Perl_pp_entersub () from /usr/lib/x86_64-linux-gnu/libperl.so.5.20

What could help is installing the 'perl-debug' package which should 
give a more verbose backtrace.

Another thing would be trying to distill a small reproducible 
testcase, but that may be not so easy.


-- dam