Re: [Swarm-Support] Cannot access memory 0x2000000

[Bill Northcott]

Hi Xiaojun

Your problem is a bad pointer.

You need to run under gdb.  When it crashes do a backtrace.  Examine 
this to see which pointer got the wrong value.

Next have a look at the code that sets that pointer.  If you can see 
the error, you solved your problem.  If not, put in some breakpoints or 
printfs to check values as the code runs.

It's tedious, but it is what you have to do.

Bill Northcott
On 13/11/2004, at 3:44 AM, ºúС¾ü wrote:

> hi,
> I made a experiment model to sweep parameters.But sometimes,after 
> several models
> run,the experSwarm will stop for some error.I used gdb to trace the 
> error:
> cannot access memory 0x2000000
> Could some one tell me what is that?
>
> This error did not always happen.Sometimes, the experSwarm could run 
> dozens of
> models.But if the time length of each model is extended, for example, 
> from 100
> steps to 500 steps, the experSwarm might stop for error for 2 or 3 
> models.The
> experswarm sometimes fails to start a new model.And the error is the 
> same: cannot
> access memory 0x2000000.The model is not very small. Each model needs 
> about 1 or 2
> hours to finish 500 steps.
>
> Could someone help me?
> Sorry for my bad expression!
>
> Best regards!
>
> HU Xiaojun
> Tsinghua University
> Beijing, China
>
>
>
>
>
> _______________________________________________
> Support mailing list
> address@hidden
> http://www.swarm.org/mailman/listinfo/support