backtrace

#2  0xb7f13353 in Tcl_Panic (format=format@entry=0xb7f77618 "yieldto failed to find the proper namespace") at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclPanic.c:149
#3  0xb7e7210f in TclNRYieldToObjCmd (clientData=0x0, interp=0x8055770, objc=4, objv=0x8ab2978) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclBasic.c:8541
#4  0xb7e6d4d8 in NRRunObjProc (data=0x8a81bf4, interp=0x8055770, result=0) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclBasic.c:4416
#5  0xb7e6d30f in TclNRRunCallbacks (interp=interp@entry=0x8055770, result=0, rootPtr=rootPtr@entry=0x8091ce8) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclBasic.c:4365
#6  0xb7e6ef6f in TclEvalObjEx (interp=interp@entry=0x8055770, objPtr=objPtr@entry=0x8b225a8, flags=flags@entry=131072, invoker=invoker@entry=0x0, word=word@entry=0) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclBasic.c:5936
#7  0xb7e6ef0b in Tcl_EvalObjEx (interp=interp@entry=0x8055770, objPtr=0x8b225a8, flags=flags@entry=131072) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclBasic.c:5917
#8  0xb7ef2896 in TclChannelEventScriptInvoker (clientData=0x8b1fd78, mask=2) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclIO.c:8843
#9  0xb7ef2444 in Tcl_NotifyChannel (channel=channel@entry=0x8b113b8, mask=mask@entry=2) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclIO.c:8326
#10 0xb7ef259d in ChannelTimerProc (clientData=0x8b113b8) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclIO.c:8498
#11 0xb7f31ae4 in TimerHandlerEventProc (evPtr=evPtr@entry=0x8b20b18, flags=flags@entry=-3) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclTimer.c:593
#12 0xb7f0f6e3 in Tcl_ServiceEvent (flags=flags@entry=-3) at /home/colin/Desktop/packages/tcl-fossil-new/generic/tclNotify.c:670