#0  0x4014b7b1 in kill () from /lib/libc.so.6
#1  0x400f5e5e in pthread_kill () from /lib/libpthread.so.0
#2  0x400f6339 in raise () from /lib/libpthread.so.0
#3  0x4014cc11 in abort () from /lib/libc.so.6
#4  0x4009f92e in Tcl_PanicVA (format=0x400d2d80 "Tcl_Release couldn't find reference for 0x%x", argList=0xbffff3b8)
    at ../../tcl/unix/../generic/tclPanic.c:106
#5  0x4009f967 in Tcl_Panic (arg1=0x400d2d80 "Tcl_Release couldn't find reference for 0x%x") at ../../tcl/unix/../generic/tclPanic.c:134
#6  0x400a897b in Tcl_Release (clientData=0x80533f8) at ../../tcl/unix/../generic/tclPreserve.c:255
#7  0x400b2ff5 in AfterProc (clientData=0x80ba400) at ../../tcl/unix/../generic/tclTimer.c:1054
#8  0x400b2473 in TimerHandlerEventProc (evPtr=0x80ba480, flags=-3) at ../../tcl/unix/../generic/tclTimer.c:543
#9  0x4009ce21 in Tcl_ServiceEvent (flags=-3) at ../../tcl/unix/../generic/tclNotify.c:618
#10 0x4009d2a1 in Tcl_DoOneEvent (flags=-3) at ../../tcl/unix/../generic/tclNotify.c:921
#11 0x4006a5ec in Tcl_VwaitObjCmd (clientData=0x0, interp=0x80533f8, objc=2, objv=0xbffff5b8) at ../../tcl/unix/../generic/tclEvent.c:990
#12 0x4003b90c in TclEvalObjvInternal (interp=0x80533f8, objc=2, objv=0xbffff5b8, command=0x8062f9d "\nvwait forever\n", length=15, flags=0)
    at ../../tcl/unix/../generic/tclBasic.c:3033
#13 0x4003c5c0 in Tcl_EvalEx (interp=0x80533f8, 
    script=0x8062f28 "\npackage require Thread\n\nputs [info loaded]\nputs [pwd]\n\nset t [::thread::create]\nafter 5000 \"::thread::send $t exit\"\n\nvwait forever\n", numBytes=132, flags=0) at ../../tcl/unix/../generic/tclBasic.c:3631
#14 0x40090044 in Tcl_FSEvalFile (interp=0x80533f8, pathPtr=0x80589e8) at ../../tcl/unix/../generic/tclIOUtil.c:1371
#15 0x40097e83 in Tcl_Main (argc=1, argv=0xbffffaf8, appInitProc=0x80486d8 <Tcl_AppInit>) at ../../tcl/unix/../generic/tclMain.c:292
#16 0x080486cc in main (argc=2, argv=0xbffffaf4) at ../../tcl/unix/../unix/tclAppInit.c:90
#17 0x4013b17f in __libc_start_main () from /lib/libc.so.6
