[vtkusers] weird vtkXMLMultiBlockDataWriter segfaults in binary mode

Tanaka Simon tanakas at gmx.ch
Fri Oct 31 19:48:38 EDT 2014

Hello VTK users and developers,

I attached a simple program which segfaults. please also have a look at 
the comments in the code.

i want to:
1) write a vtkMultiBlockDataSet to a file
2) load it
3) add some more Blocks
4) write it again

it only segfaults if the writers are set to binary mode, and only if the 
data exceeds a certain size. in ascii mode, everything is fine.

this might be related:

can you confirm that behaviour? what am i doing wrong? and if it is a 
bug, how can i work around?

thank you very much
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cmake_minimum_required(VERSION 2.8)


find_package(VTK REQUIRED)

add_executable(vtk_weird_segfault MACOSX_BUNDLE vtk_weird_segfault)

  target_link_libraries(vtk_weird_segfault ${VTK_LIBRARIES})
  target_link_libraries(vtk_weird_segfault vtkHybrid vtkWidgets)
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