[petsc-dev] Crash in MatDestroy_MUMPS

[John Fettig]

On Tue, Feb 21, 2012 at 4:55 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.
>

You were right.  I was able to run it through valgrind overnight and it was
definitely memory corruption on my end.  After cleaning that up, the
segfault in KSPDestroy goes away.

Thanks,
John
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