yade-dev team mailing list archive

[Bruno Chareyre <1732210@xxxxxxxxxxxxxxxxxx>]

As was guessed by Son in a separate email the function is_infinite() in [1] gives the segfault randomly (~50% of the cases). When the it does not segfault the output is correct. When it segfaults it starts with the very same sequence of operations (e.g. the cells are visited in the same order) until the segfault occurs.
It seems to be another compiler/cgal a-logical bug, reminiscent of [2].
B

[1] https://github.com/yade/trunk/blob/master/pkg/pfv/TwoPhaseFlowEngine.hpp#L360
[2] https://bugs.launchpad.net/yade/+bug/1666339

** Changed in: yade
     Assignee: (unassigned) => Bruno Chareyre (bruno-chareyre)

** Changed in: yade
   Importance: Undecided => Medium

** Changed in: yade
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1732210

Title:
  getNeighbors_Segmentation fault (core dumped)

Status in Yade:
  Confirmed

Bug description:
  Hi,

  I got an error "Segmentation fault (core dumped)". I have narrowed
  down to find out that the problem is about the function
  getNeighbors(). But this error does not always happen. I got error
  when num_spheres = 50,100,200,250,300 but when num_spheres = 150 there
  will be no error with getNeighbors()

  My system info:
  Ubuntu 14.04 LTS
  Yade is compiled using packaged version yade-2017.01a

  Regards,
  Son

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