Strange Error of munmap_chunk()

[Hassam Mughal]

Greetings Everyone!

I am getting this strange error and cannot get any idea through this gdb debug as well;

Any help or guidance in this regard will be highly appreciated.

Thanks

Best Regards,

Hassam

[Hassam Mughal]

On changing the node's speed from 20 m/s to 10 m/s, I am getting following issue in my flow monitor.

My flowmonitor code is as follows;

// Print per flow statistics

 flowmon->CheckForLostPackets ();
 Ptr<Ipv4FlowClassifier> classifier = DynamicCast<Ipv4FlowClassifier> (flowmonHelper.GetClassifier ());
 std::map<FlowId, FlowMonitor::FlowStats> stats = flowmon->GetFlowStats ();


 for (std::map<FlowId, FlowMonitor::FlowStats>::const_iterator iter = stats.begin (); iter != stats.end (); ++iter)
 {
 Ipv4FlowClassifier::FiveTuple t = classifier->FindFlow (iter->first);


 NS_LOG_UNCOND( "  Flow " << iter->first << " (" << t.sourceAddress << " -> " << t.destinationAddress << ")\n");
 NS_LOG_UNCOND( "  Tx Bytes:   " << iter->second.txBytes << "\n");
 NS_LOG_UNCOND( "  Rx Bytes:   " << iter->second.rxBytes << "\n");
 NS_LOG_UNCOND( "  Throughput: " << iter->second.rxBytes * 8.0 / (TotalTime - m_dataStart) / 1000 / 1000 << " Mbps\n");
 NS_LOG_UNCOND( "  Rx Segments: " << iter->second.rxPackets << "\n");
 NS_LOG_UNCOND( "  Lost packets: " << iter->second.lostPackets << "\n");
 NS_LOG_UNCOND( "  Packet Delivery Fraction: " << (float) iter->second.rxBytes / iter->second.txBytes * 100 << " %\n");
 NS_LOG_UNCOND( "  Average End-to-end Delay: " << iter->second.delaySum / iter->second.rxPackets / 1000 << " us\n");
 NS_LOG_UNCOND( "  Throughput: " << iter->second.rxBytes * 8.0 / (iter->second.timeLastRxPacket.GetSeconds()-iter->second.timeFirstTxPacket.GetSeconds()) / 1024 / 1024 << " Mbps");


 }




 flowmon->SerializeToXmlFile ((tr_name + ".flowmon").c_str(), true, true);

[Hassam Mughal]

After commenting the flowmonitor code, I am getting following error;

On Sunday, May 3, 2020 at 2:47:03 AM UTC+9, Hassam Mughal wrote: