[ndnSIM] Simulation terminated with signal SIGSEGV - possible bug

[John Baugh]

Thiago,

I was able to run your scenario in ndnSIM 2.4.  So I suspect this is either
an introduced bug in the simulator itself, or perhaps there's something not
correctly configured in your environment.

I can't reproduce the error, so as Dr. Shi suggested, it would be useful to
see your GDB and/or Valgrind output.

Thanks!

John

On Sat, May 5, 2018 at 9:23 AM, Thiago Teixeira <tteixeira at umass.edu> wrote:

> Hi all,
>
>
>
> We have a scenario where nodes have two interfaces, one wireless and one
> wired. Nodes are position on a grid fashion and the producer is located in
> the center of the grid.
>
> We run this scenario for 4,000 seconds, but the simulation ends at 2,099
> seconds with the code
>
>     Command ['/home/vagrant/ndnSIM/ns-3/build/scratch/ndn-debug-scenario']
> terminated with signal SIGSEGV. Run it under a debugger to get more
> information (./waf --run <program> --command-template="gdb --args %s
> <args>").
>
>
>
> Running with GDB didn’t offer any other insights. Here are the steps to
> reproduce the issue:
>
>
>
> #### Expected behavior
>
> Simulations run until the specified time Simulator::Stop(Seconds(4000.0));
>
>
>
> #### Actual behavior
>
> Simulations crash (see error message below) before
> Simulator::Stop(Seconds(4000.0));
>
>
>
> `Command ['/home/vagrant/ndnSIM/ns-3/build/scratch/ndn-debug-scenario']
> terminated with signal SIGSEGV. Run it under a debugger to get more
> information (./waf --run <program> --command-template="gdb --args %s
> <args>").`
>
>
>
> #### Code to reproduce the problem
>
> See Gist:
>
> https://gist.github.com/thiteixeira/8c4fd1deb884b548d1f071ebb1bee043
>
>
>
> #### ndnSIM version
>
> ndnSIM-2.5-2-ge674a01
>
>
>
> #### Operating system and version
>
> Ubuntu 16.04.4 LTS
>
> memory size: 2000MiB
>
> 1 cpu: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz
>
>
>
> #### Other relevant information
>
> compiled ndnSIM using the optimized version:
>
> ./waf configure -d optimized
>
>
>
> Increasing the number of nodes makes the simulation crash at an earlier
> time.
>
> _______________________________________________
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> ndnSIM at lists.cs.ucla.edu
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>
>
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