My CVS version is from Sunday, 20 February.
There is no stack trace. I redirected the stdout/stderr to a file:
vl02s32:/home/amule# head amuled.log
Initialising aMule
Logging to stdout enabled
Userhash loaded: F199A652BC0E8AC554705164FE116FBF
2005-02-21 11:38:11: Creditfile loaded, 1693 clients are known
2005-02-21 11:38:11: Loaded ipfilter with 0 new IP addresses.
*** reading servers
2005-02-21 11:38:11: 101 servers in server.met found
...
vl02s32:/home/amule# tail amuled.log
Finished sources
2005-02-21 19:26:14: Handshake not finished while processing packet.
2005-02-21 19:26:18: Handshake not finished while processing packet.
2005-02-21 19:26:18src/unix/utilsunx.cpp(251): assert "wxThread::IsMain()" failed: wxExecute() can be called only from the main thread [in child thread]
I know, this is not as detailed as you expect it. I am sorry that I cannot provide you with more detailed input.
My wxWindows is from the CVS, too.