glibc invalid pointer error

David Huard david.huard at gmail.com
Mon Oct 30 13:57:43 CST 2006


Ok,
I'll update numpy and give it another try tonight.

Regards,

David

2006/10/30, Fernando Perez <fperez.net at gmail.com>:
>
> On 10/30/06, David Huard <david.huard at gmail.com> wrote:
> > Hi,
> > I have a script that crashes, but only if it runs over 9~10 hours, with
> the
> > following backtrace from gdb. The script uses PyMC, and repeatedly calls
> (>
> > 1000000) likelihood functions written in fortran and wrapped with f2py.
> > Numpy: 1.0.dev3327
> > Python: 2.4.3
>
> This sounds awfully reminiscent of the bug I recently mentioned:
>
> http://aspn.activestate.com/ASPN/Mail/Message/numpy-discussion/3312099
>
> We left a fresh run over the weekend, but my office mate is currently
> out of the office and his terminal is locked, so I don't know what the
> result is.  I'll report shortly: we followed Travis' instructions and
> ran with a fresh SVN build which includes the extra warnings he added
> to the dealloc routines.  You may want to try the same advice, perhaps
> with information from both of us the gurus may zero in on the problem,
> if indeed it is the same.
>
> Note that I'm not positive it's the same problem, and our backtraces
> aren't quite the same.  But the rest of the scenario is similar:
> low-level memory crash from glibc, very long run is needed to fire the
> bug, potentially millions of calls to both numpy and to f2py-wrapped
> in-house libraries.
>
> Cheers,
>
> f
>
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