[Ndn-interest] FIB was disappear when sending recv a mount of packets

[ndn ndn]

Hello everyone,
I'm using NDN-CXX to write a problem. Due to the limit of NDN network, I
have to divided my data into many small packets.
In those packets, I
use getMetaInfo().getFinalBlockId().toNumberWithMarker(0x00) to set the
count of packets. And when sending 940 packets, It seems NFD was crashed.I
can't receive any   packets from server and the FIB which routed to my
servers is disappear. And also, my program isn't send any timeout
information, it go into dead loop in face.processEvents().

I still can't find any problem?
BTY, I request next packets in on data function, and I use
shared_from_this() function as callback function.May it cause this problem,
any one could help me to solve this problem?

thanks a lot
qihan song
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