[vtk-developers] [VTK 0012229]: vtkImageAppend does not work correctly with multiple threads

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://www.vtk.org/Bug/view.php?id=12229 
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Reported By:                Dominik Szczerba
Assigned To:                
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Project:                    VTK
Issue ID:                   12229
Category:                   (No Category)
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     new
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Date Submitted:             2011-05-27 07:19 EDT
Last Modified:              2011-05-27 07:19 EDT
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Summary:                    vtkImageAppend does not work correctly with multiple
threads
Description: 
vtkImageAppend only works correctly with one thread. With more
it crashes reporting incorrect input/output pointers.

Steps to Reproduce: 
append = vtkImageAppend()
append.SetPreserveExtents(1)
# append.SetNumberOfThreads(1) # uncomment to prevent the crash

for i in range(NINPUTS):
	filename = args[i]
	reader = vtkXMLImageDataReader()
	reader.SetFileName(filename)
	reader.Update()
	dataset = vtkImageData()
	dataset.DeepCopy(reader.GetOutput())
	append.AddInput(dataset)
append.Update()

Result:

ERROR: In /home/domel/pack/vtk-5.6.1/Filtering/vtkImageData.cxx, line 2094
vtkImageData (0x2c246a0): GetPointer: Pixel (0, 0, 269) not in current extent:
(0, 575, 0, 447, 101, 220)

ERROR: In /home/domel/pack/vtk-5.6.1/Filtering/vtkImageData.cxx, line 2094
vtkImageData (0x2c246a0): GetPointer: Pixel (0, 0, 245) not in current extent:
(0, 575, 0, 447, 101, 220)

ERROR: In /home/domel/pack/vtk-5.6.1/Filtering/vtkImageData.cxx, line 2094
vtkImageData (0x2c246a0): GetPointer: Pixel (0, 0, 221) not in current extent:
(0, 575, 0, 447, 101, 220)

Segmentation fault

Additional Information: 
See the vtk mailing list thread "vtkImageAppend does not work correctly with
multiple threads"
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Issue History 
Date Modified    Username       Field                    Change               
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2011-05-27 07:19 Dominik SzczerbaNew Issue                                    
2011-05-27 07:19 Dominik SzczerbaFile Added: data.tar.bz2                     
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