seg fault on probe

[Matthew Hare]

hi, I've been having great fun with the probing the heatbugs in the new version 
of the old heatbugs application .... but I've discovered that occassionally 
after probing (and sometimes missing the wee bug and just getting the bell...) 
half a dozen or so times I get a segmentation fault - am I
just playing around too much for my system to handle or is it more than that?
help!

Matt

here's my stack trace after failure....

Program received signal SIGSEGV, Segmentation fault.
0x50910 in __r (__rv=0xefffdd48) at tclObjc.m:462
462             sprintf(resultString, tclObjc_objectToName(GET_RETVAL(id, 
retframe)));
(gdb) bt
#0  0x50910 in __r (__rv=0xefffdd48) at tclObjc.m:462
#1  0x515d4 in tclObjc_msgSendToClientData (clientData=0x1d67f0, 
    interp=0x187f78, argc=2, argv=0xefffe02c) at tclObjc.m:462
#2  0x5195c in tclObjc_msgSendToArgv1 (clientData=0x0, interp=0x187f78, 
    argc=3, argv=0xefffe028) at tclObjc.m:580
#3  0xd7cbc in Tcl_Eval ()
#4  0xe5824 in Tcl_UplevelCmd ()
#5  0xd7cbc in Tcl_Eval ()
#6  0xe4460 in TclParseNestedCmd ()
#7  0xe4a6c in TclParseWords ()
#8  0xd7ab0 in Tcl_Eval ()
#9  0xd9510 in Tcl_IfCmd ()
#10 0xd7cbc in Tcl_Eval ()
#11 0xe5b18 in InterpProc ()
#12 0xd7cbc in Tcl_Eval ()
#13 0xd81b8 in Tcl_GlobalEval ()
#14 0xc6014 in Tk_BindEvent ()
#15 0xc8724 in TkBindEventProc ()
#16 0x83720 in Tk_HandleEvent ()
#17 0x839cc in TkXFileProc ()
#18 0x76854 in Tk_DoOneEvent ()
#19 0x2a1c8 in _i_SimControl__doTkEvents (self=0x1afb40, _cmd=0x126a0c)
    at SimControl.m:61
#20 0x4bfc0 in _i_Object_s__perform_ (self=0x1afb40, _cmd=0x12d1e4, 
    aSel=0x126a0c) at DefObject.m:239
#21 0x385dc in _i_ActionTo_0___performAction__ (self=0x1f46e0, _cmd=0x12d5b4, 
    anActivity=0x1fb180) at Action.m:159
#22 0x39a3c in _i_Activity_c___run_ (self=0x1fb180, _cmd=0x12d59c)
    at Activity.m:282
#23 0x39874 in _i_Activity_c___run_ (self=0x1fae98, _cmd=0x12d59c)
    at Activity.m:253
#24 0x39874 in _i_Activity_c___run_ (self=0x1faaa0, _cmd=0x12d59c)
    at Activity.m:253
#25 0x39874 in _i_Activity_c___run_ (self=0x1f94b0, _cmd=0x12d584)
    at Activity.m:253
#26 0x39668 in _i_Activity_c__run (self=0x1f94b0, _cmd=0x126a74)
    at Activity.m:212
#27 0xf3de4 in __objc_init_install_dtable (receiver=0x12c358, op=0x126a74)
    at sendmsg.c:208
#28 0x22cd4 in main (argc=1, argv=0xeffff7d4) at main.m:285
(gdb)