[petsc-dev] Crash in MatDestroy_MUMPS

[Matthew Knepley]

On Tue, Feb 21, 2012 at 3:55 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:

> On Tue, Feb 21, 2012 at 15:38, John Fettig <john.fettig at gmail.com> wrote:
>
>> Is this likely memory corruption on my side or on the PETSc side, or
>> something else entirely?  I seem unable to reproduce it with an example,
>> unfortunately.  Running it through valgrind may take a week.
>
>
> I don't see a reason why that specific line would naturally end up with an
> invalid value, so I suspect memory corruption. Make a smaller problem so
> that valgrind runs fast.
>

Put another way, even if this is our bug, it looks subtle and is unlikely
to be found
without valgrind.

  Thanks

     Matt

-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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