NASA cFS SBN Crashes During Runtime

[JDStorey1]

We are using Draco RC5 and want to use SBN to connect two instances of cFS running on different computers. Initially we will use the UDP protocol with the Remap filter as setup in the default sbn_conf_tbl.c

I successfully built and installed my image and the following files are available in the cf folder: sbn.so, sbn_udp.so, sbn_f_remap.so, sbn_conf_tbl.tbl and sbn_remap_tbl.tbl.

When I run ./core-cpu1 the execution causes a segmentation fault within SBN_RecvNetMsgs() trying to call Net->IfOps->RecvFromNet(...)

This is beyond a check that Net->IfOps->RecvFromNet is not NULL but I don't see where this function pointer is set. Putting a breakpoint in sdp_udp_if.c Recv(...) is not reached before the segmentation fault.

Our SBN branch was created from main (dated Apr 19, commit caaac922). Is this not compatible with Draco?

@CDKnightNASA

[JDStorey1]

My issue was with stack size of SBN task was too small for receive buffer in Recv().