For a particular BF I'm investigating, which has failed on all branches 3.6, 4.0, 4.2, and master, the hang analyzer finds interesting processes for python.exe, mongobridge.exe, and mongod.exe, but not mongo.exe. For this particular BF, we believe that the hanging process is actually the shell, so for this case it would have been very helpful to have the shell process stack traces. See linked BF for examples. Note that the first BF does actually have a mongo.exe in the Hang Analysis output, but we believe that it's incorrectly linked as a dup; the other BFG's are the ones to look at here.