27 Jul
2016
27 Jul
'16
12:05 p.m.
On 27/07/16 11:54, Stephan Kramer wrote:
Dear firedrake devs
After upgrading my workstation to Ubuntu Xenial, and rebuilding firedrake from scratch I get several segfaults in the running of firedrake tests. The ones I've seen so far were segfaulting in petsc:
kernel -> MatSetValuesLocal() -> ISLocalToGlobalMappingApply()
If I switch on the debug PyOP2 option and run it in gdb, it seems the values passed to MatSetValuesLocal are all sensible. Unfortunately if I rebuild firedrake with a debugging-petsc the tests all pass (i.e. the segfault goes away). Any further hints how to debug this?
Can you run the failing test under valgrind? Lawrence