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Question Re: Memory Overwrite 

Forum: Geometry
Re: Question Memory Overwrite (Chibueze Zimuzo)
Date: 16 Feb, 2009
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Chibueze,

this is not the correct forum for discussing generic debug issues.

Unless you're effectively running out of memory, or having any system
related problem, given the statistics you're trying to run in a single
run... a possibility for you to further investigate your problem is to
use the Valgrind tool in conjunction with a debug build of your
libraries and application, eventually storing seeds and restarting
from the faulty event. You may be lucky and reproduce the error
in a reasonable time.


On Mon, 16 Feb 2009 10:30:25 GMT, Chibueze Zimuzo wrote:
> Hi all,
> I encountered an error that looks like memory overwirte when large
> number of events (see below) were ran. I needed to run about 500 million
> events to generate some good statistics for my analysis . Tracing the
> bug has been difficult as the command: (gdb) bt is constantly returning
> no stack.
> Can anyone please give some practical hints how I can tackle the
> problem?
> Thanks.
> Chibueze.
> Event: 21982379
> Event: 21982380
> terminate called after throwing an instance of 'std::bad_alloc'
>   what():  St9bad_alloc
> Aborted
> czu1@tesla:~/GATE/geant4.8.1.
> p02/CC/CC_Series2/CC_Test3$     

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