Bug#1114938: dune-grid: FTBFS in bookworm: Test #8: subsamplingvtktest ....................................***Failed

[Markus Blatt]

HI

On 11.09.25 22:56, Santiago Vila wrote:
> Package: src:dune-grid
> Version: 2.9.0-2
> Severity: serious
> Control: fixed -1 2.10.0-1
> Tags: ftbfs bookworm
>
> Dear maintainer:
>
> During a rebuild of all packages in bookworm, your package failed to build.
>
> [ Note: The bug is marked as fixed with the version in trixie, but
>    packages in bookworm must still build in bookworm ].
>
> Below you will find how the build ends (probably the most relevant part,
> but not necessarily).
[... snip... ]
>
> 2025-09-07 09:09:32.467 (   0.232s) [        5DA9C040]       vtkXMLParser.cxx:375    ERR| vtkXMLDataParser (0x33894400): Error parsing XML in stream at line 28, column 0, byte index 1721: not well-formed (invalid token)
> 2025-09-07 09:09:32.467 (   0.232s) [        5DA9C040]       vtkXMLReader.cxx:521    ERR| vtkXMLUnstructuredGridReader (0x338a1620): Error parsing input file.  ReadXMLInformation aborting.
> 2025-09-07 09:09:32.467 (   0.232s) [        5DA9C040]       vtkExecutive.cxx:752    ERR| vtkCompositeDataPipeline (0x33869fe0): Algorithm vtkXMLUnstructuredGridReader(0x338a1620) returned failure for request: vtkInformation (0x3389eea0)
>    Debug: Off
>    Modified Time: 116247
>    Reference Count: 1
>    Registered Events: (none)
>    Request: REQUEST_INFORMATION
>    ALGORITHM_AFTER_FORWARD: 1
>    FORWARD_DIRECTION: 0
>
>
> ERROR in ./s0002-vtktest-3D-leafview-nonconforming-appendedraw.pvtu
> CHECK   FAILED:
> TEST    FAILED: 1/1 checks failed in this test.
> --------------------------------------------------------------------------
> Primary job  terminated normally, but 1 process returned
> a non-zero exit code. Per user-direction, the job has been aborted.
> --------------------------------------------------------------------------
> --------------------------------------------------------------------------
> mpiexec detected that one or more processes exited with non-zero status, thus causing
> the job to be terminated. The first process to do so was:


This is bug 1064762 that has now probably been added to bookworm by a 
patch to vtk9.

I can work around this here by simply deactivating test, but this kind 
of reading of the vtk files I cannot fix here. dune-grid just writes 
those files.

The underlying problem can only be fixed in VTK. though. It might affect 
other packes.

How should we proceed?

Best,

Markus

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1064762