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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal">We run this scenario for 4,000 seconds, but the simulation ends at 2,099 seconds with the code
<o:p></o:p></p>
<p class="MsoNormal"> 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>").<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Running with GDB didn’t offer any other insights. Here are the steps to reproduce the issue:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">#### Expected behavior<o:p></o:p></p>
<p class="MsoNormal">Simulations run until the specified time Simulator::Stop(Seconds(4000.0));<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">#### Actual behavior<o:p></o:p></p>
<p class="MsoNormal">Simulations crash (see error message below) before Simulator::Stop(Seconds(4000.0));<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">`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>").`<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">#### Code to reproduce the problem<o:p></o:p></p>
<p class="MsoNormal">See Gist:<o:p></o:p></p>
<p class="MsoNormal">https://gist.github.com/thiteixeira/8c4fd1deb884b548d1f071ebb1bee043<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">#### ndnSIM version<o:p></o:p></p>
<p class="MsoNormal">ndnSIM-2.5-2-ge674a01<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">#### Operating system and version<o:p></o:p></p>
<p class="MsoNormal">Ubuntu 16.04.4 LTS<o:p></o:p></p>
<p class="MsoNormal">memory size: 2000MiB<o:p></o:p></p>
<p class="MsoNormal">1 cpu: Intel(R) Core(TM) i7-7700 CPU @ 3.60GHz<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">#### Other relevant information<o:p></o:p></p>
<p class="MsoNormal">compiled ndnSIM using the optimized version:<o:p></o:p></p>
<p class="MsoNormal">./waf configure -d optimized<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Increasing the number of nodes makes the simulation crash at an earlier time.<o:p></o:p></p>
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