[redland-dev] Error when removing triples

Michael Stahl mstahl at redhat.com
Fri Feb 20 07:36:06 EST 2015


On 13.02.2015 19:49, François Scharffe wrote:
> I get errors when trying to remove triples, both through the python
> bindings or using rdfproc.
> 
> rdfproc gives the following output:
> 
> rdfproc: removed triple from the graph
> *** Error in `rdfproc': double free or corruption (!prev):
> 0x00000000016d5130 ***
> Aborted (core dumped)
> 
> 
> The triple is actually removed.
> 
> I use Redland with Virtuoso through unixODBC.

this is definitely a bug somewhere, and you can use valgrind to track
down where exactly.  you need to install debuginfo packages, or rebuild
things with debug enabled until valgrind produces useful output (with
line numbers).

 valgrind --tool=memcheck --num-callers=50  rdfproc ...



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