[Paraview] segfault opening the color scale editor / vtkPVProminentValuesInformation?

[Burlen Loring]

Steps to reproduce:

Start pvserver running parallel 2 ranks
Open the attached dataset, load b array
Slice the dataset such that the slice contains no data from at least one 
rank.
Color slice by b array magnitude (default)
Open the color scale editor -> crash

I added the test dataset to the bug report: 
http://paraview.org/Bug/view.php?id=14051

On 05/03/2013 04:12 PM, Burlen Loring wrote:
> with git master from this afternoon, I'm experiencing segfaults when I 
> try to open the color scale editor. seems to be related to 
> vtkPVProminentValuesInformation. As soon as I get 4 or more ranks I 
> have the segfault. Is this a known issue?
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007fde3f6dbee1 in vtkInformationVector::GetInformationObject 
> (this=0x0, index=0) at 
> /work/ext/ParaView/sqtk-pv/ParaView/VTK/Common/Core/vtkInformationVector.cxx:157
> 157       if(index >= 0 && index < this->NumberOfInformationObjects)
> (gdb) where
> #0  0x00007fde3f6dbee1 in vtkInformationVector::GetInformationObject 
> (this=0x0, index=0) at 
> /work/ext/ParaView/sqtk-pv/ParaView/VTK/Common/Core/vtkInformationVector.cxx:157 
>
> #1  0x00007fde3f5c5950 in vtkAbstractArray::UpdateDiscreteValueSet 
> (this=0x3ce0130, uncertainty=0, minimumProminence=0) at 
> /work/ext/ParaView/sqtk-pv/ParaView/VTK/Common/Core/vtkAbstractArray.c
> #2  0x00007fde3f5c4d81 in 
> vtkAbstractArray::GetProminentComponentValues (this=0x3ce0130, 
> comp=-1, values=0x3cd2f30, uncertainty=0, minimumProminence=0)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/VTK/Common/Core/vtkAbstractArray.cxx:548
> #3  0x00007fde383df72d in 
> vtkPVProminentValuesInformation::CopyDistinctValuesFromObject 
> (this=0x3ccfeb0, array=0x3ce0130)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ClientServerCore/Rendering/vtkPVProminentValuesInformation.cxx:391
> #4  0x00007fde383df5b7 in 
> vtkPVProminentValuesInformation::CopyFromLeafDataObject 
> (this=0x3ccfeb0, dobj=0x4084620)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ClientServerCore/Rendering/vtkPVProminentValuesInformation.cxx:360
> #5  0x00007fde383df2ad in 
> vtkPVProminentValuesInformation::CopyFromCompositeDataSet 
> (this=0x3ccbd80, cds=0x40bb800)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ClientServerCore/Rendering/vtkPVProminentValuesInformation.cxx:309
> #6  0x00007fde383def5f in 
> vtkPVProminentValuesInformation::CopyFromObject (this=0x3ccbd80, 
> obj=0x405dd90)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ClientServerCore/Rendering/vtkPVProminentValuesInformation.cxx:263
> #7  0x00007fde401554f0 in vtkPVSessionCore::GatherInformationInternal 
> (this=0x23a3b90, information=0x3ccbd80, globalid=4483)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ServerImplementation/Core/vtkPVSessionCore.cxx:838
> #8  0x00007fde401555cb in vtkPVSessionCore::GatherInformation 
> (this=0x23a3b90, location=17, information=0x3ccbd80, globalid=4483)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ServerImplementation/Core/vtkPVSessionCore.cxx:858
> #9  0x00007fde401512c0 in vtkPVSessionBase::GatherInformation 
> (this=0x23a9ad0, location=17, information=0x3ccbd80, globalid=4483)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ServerImplementation/Core/vtkPVSessionBase.cxx:258
> #10 0x00007fde40160b7e in 
> vtkPVSessionServer::GatherInformationInternal (this=0x23a9ad0, 
> location=17, classname=0x3cbb9f8 "vtkPVProminentValuesInformation", 
> globalid=4483, stream=...)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ServerImplementation/Core/vtkPVSessionServer.cxx:567
> #11 0x00007fde401608f0 in vtkPVSessionServer::OnClientServerMessageRMI 
> (this=0x23a9ad0, message=0x408dec0, message_length=135)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ServerImplementation/Core/vtkPVSessionServer.cxx:527
> #12 0x00007fde4015ee0c in (anonymous namespace)::RMICallback 
> (localArg=0x23a9ad0, remoteArg=0x408dec0, remoteArgLength=135)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ServerImplementation/Core/vtkPVSessionServer.cxx:56
> #13 0x00007fde3fb0c4bf in vtkMultiProcessController::ProcessRMI 
> (this=0x2cdfe60, remoteProcessId=1, arg=0x408dec0, argLength=135, 
> rmiTag=55625)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/VTK/Parallel/Core/vtkMultiProcessController.cxx:650
> #14 0x00007fde3fb0c06e in vtkMultiProcessController::ProcessRMIs 
> (this=0x2cdfe60, reportErrors=0, dont_loop=1)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/VTK/Parallel/Core/vtkMultiProcessController.cxx:597
> #15 0x00007fde3fe64291 in 
> vtkTCPNetworkAccessManager::ProcessEventsInternal (this=0x2394e90, 
> timeout_msecs=0, do_processing=true)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ClientServerCore/Core/vtkTCPNetworkAccessManager.cxx:268
> #16 0x00007fde3fe63e50 in vtkTCPNetworkAccessManager::ProcessEvents 
> (this=0x2394e90, timeout_msecs=0)
>     at 
> /work/ext/ParaView/sqtk-pv/ParaView/ParaViewCore/ClientServerCore/Core/vtkTCPNetworkAccessManager.cxx:165
> #17 0x0000000000401713 in RealMain (argc=1, argv=0x7fff7f9ea6a8, 
> type=vtkProcessModule::PROCESS_SERVER) at 
> /work/ext/ParaView/sqtk-pv/ParaView/CommandLineExecutables/pvserver_common.h:90
> #18 0x00000000004017c5 in main (argc=1, argv=0x7fff7f9ea6a8) at 
> /work/ext/ParaView/sqtk-pv/ParaView/CommandLineExecutables/pvserver.cxx:21

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