[Paraview] segfault in a custom plugin

[Utkarsh Ayachit]

Dominik,

Can you attach the full source tar ball please? Would just make it
easier to try it out.

Thanks
Utkarsh

On Mon, May 23, 2011 at 8:12 AM, Dominik Szczerba <dominik at itis.ethz.ch> wrote:
> Hello!
>
> I am facing a segfault with a custom filter. Here a minimalistic setup
> to reproduce the problem, Ubuntu 10.10 64bit:
>
> I have copied the original vtkImageClip class, as well as its
> ServerManager xml part, merely renaming it to vtkMyImageResample. I
> have added a plugin like
>
>
> ADD_PARAVIEW_PLUGIN(MyImageResample_Plugin "1.0"
>   SERVER_MANAGER_XML MyImageResample.xml
>   SERVER_MANAGER_SOURCES vtkMyImageResample.cxx
>   GUI_RESOURCE_FILES MyImageResampleGUI.xml)
>
> The GUI part can not be simpler:
>
> <ParaViewFilters>
>  <Category name="My Filters">
>  <Filter name="MyImageResample"/>
>  </Category>
> </ParaViewFilters>
>
> Now I create an image using Sources->Wavelet (default options) and
> call my filter. ParaView crashes with the backtrace pasted below.
> Does anyone have any hints how to proceed from here?
>
> Many thanks and best regards,
> Dominik
>
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007fffe8386dae in
> vtkInformationVector::GetNumberOfInformationObjects (this=0x0)
>    at /home/domel/pack/ParaView-3.10.1/VTK/Common/vtkInformationVector.h:43
> 43        int GetNumberOfInformationObjects() { return
> this->NumberOfInformationObjects; };
> (gdb) bt
> #0  0x00007fffe8386dae in
> vtkInformationVector::GetNumberOfInformationObjects (this=0x0)
>    at /home/domel/pack/ParaView-3.10.1/VTK/Common/vtkInformationVector.h:43
> #1  0x00007fffe8384176 in vtkAlgorithm::GetNumberOfOutputPorts
> (this=0x1fbaa60) at
> /home/domel/pack/ParaView-3.10.1/VTK/Filtering/vtkAlgorithm.cxx:733
> #2  0x00007ffff187ab36 in
> vtkPVAlgorithmPortsInformation::CopyFromObject (this=0x1fbcf70,
> obj=0x1fbaa60)
>    at /home/domel/pack/ParaView-3.10.1/Servers/Common/vtkPVAlgorithmPortsInformation.cxx:73
> #3  0x00007ffff18e08cb in vtkSelfConnection::GatherInformation
> (this=0x15d46b0, info=0x1fbcf70, id=...)
>    at /home/domel/pack/ParaView-3.10.1/Servers/Common/vtkSelfConnection.cxx:149
> #4  0x00007ffff185fd9c in
> vtkProcessModuleConnectionManager::GatherInformation (this=0x1044d80,
> connectionID=5, serverFlags=1, info=0x1fbcf70, id=...)
>    at /home/domel/pack/ParaView-3.10.1/Servers/Common/vtkProcessModuleConnectionManager.cxx:570
> #5  0x00007ffff1867d98 in vtkProcessModule::GatherInformation
> (this=0xccefc0, connectionID=5, serverFlags=1, info=0x1fbcf70, id=...)
>    at /home/domel/pack/ParaView-3.10.1/Servers/Common/vtkProcessModule.cxx:310
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