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Postings from October 2003
On Tue, Oct 07, 2003 at 05:49:37PM -0000, berikv@xs4all.nl (via RT) wrote:
> When running this:
>
> perl -we '$db = bless {}; $db->{db}{12345}; use Storable; sub DESTROY { store(shift->{db},"outfile") }'
>
> perl gets a SEGV signal and dumps core..
> Hope i've supplied enough information.
Yes. Thanks for this bug report. I can replicate this on 5.8.1 built on
Debian. I have no idea quite what's going wrong. Running under valgrind I
see this error on STDERR:
Useless use of hash element in void context at -e line 1.
and 55K of output (see http://www.ccl4.org/~nick/P/24154_valgrind )
which seems to start with several repeats of this:
==432== Invalid read of size 4
==432== at 0x41B5C436: do_store (in /home/richardc/archive/penfold-usr-local/perl5.8.1/lib/5.8.1/i686-linux/auto/Storable/Storable.so)
==432== by 0x41B5C589: pstore (in /home/richardc/archive/penfold-usr-local/perl5.8.1/lib/5.8.1/i686-linux/auto/Storable/Storable.so)
==432== by 0x41B60E30: XS_Storable_pstore (in /home/richardc/archive/penfold-usr-local/perl5.8.1/lib/5.8.1/i686-linux/auto/Storable/Storable.so)
==432== by 0x80BE991: Perl_pp_entersub (in /home/richardc/archive/penfold-usr-local/perl5.8.1/bin/perl)
==432== Address 0x4140471C is 68 bytes inside a block of size 148 free'd
==432== at 0x40028C15: free (vg_replace_malloc.c:220)
==432== by 0x80C64B1: Perl_sv_clear (in /home/richardc/archive/penfold-usr-local/perl5.8.1/bin/perl)
==432== by 0x80C6825: Perl_sv_free (in /home/richardc/archive/penfold-usr-local/perl5.8.1/bin/perl)
==432== by 0x80CC8F7: Perl_sv_clean_objs (in /home/richardc/archive/penfold-usr-local/perl5.8.1/bin/perl)
Nicholas Clark
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