[vtk-developers] TestOpacity failing on Mac dashboards and memory corruption

[David Cole]

TestOpacity was failing on several machines recently. As far as I know,
every one of them has been resolved by upgrading the video drivers on the
machines.

I don't know if I can get to it today, but if this is still pending next
week, I can run your malloc stuff on midworld and report back here...

Thanks,
David

On 2/1/07, Sean McBride <sean at rogue-research.com> wrote:
>
> Hi all, me again :)
>
> On several Mac dashboards TestOpacity is failing, on others it is
> passing.  Has anyone looked at this?  We noticed something strange:
>
> On midworld.kitware it passes, but if you look at the details:
> <http://www.vtk.org/Testing/Sites/midworld.kitware/DarwinG5-c++-carbon/
> 20070201-0300-Nightly/Results/__Rendering_Testing_Cxx_TestOpacity.html>
>
> you will see the message:
> "*** malloc[17039]: Deallocation of a pointer not malloced: 0x24109f0;
> This could be a double free(), or free() called with the middle of an
> allocated block;"
>
> OTOH, on my machine the test fails, but there is no such error message!
> Seems backwards. :)
>
> Could someone with access to midworld try this:
>
> 1) open terminal
> 2) type the following (assuming bash):
> export MallocPreScribble=1
> export MallocScribble=1
> export MallocGuardEdges=1
> export MallocBadFreeAbort=1
> 3) run the test!
>
> Also, this malloc error message is occurring on midworld for other tests
> too, such as TestMultiBlock.  It seems to have started between Nov 2 and
> Nov 4 2006:
>
> <http://www.vtk.org/Testing/Sites/midworld.kitware/DarwinG5-c++-carbon/
> 20061102-0300-Nightly/Results/__Graphics_Testing_Cxx_TestMultiBlock.html>
>
> <http://www.vtk.org/Testing/Sites/midworld.kitware/DarwinG5-c++-carbon/
> 20061104-0300-Nightly/Results/__Graphics_Testing_Cxx_TestMultiBlock.html>
>
> --
> ____________________________________________________________
> Sean McBride, B. Eng                 sean at rogue-research.com
> Rogue Research                        www.rogue-research.com
> Mac Software Developer              Montréal, Québec, Canada
>
>
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