* 1 Thread 1076349440 (LWP 19281) GetGCHandleTable (_thread=0x816ff80) at lib_gc.c:135
(gdb) bt
#0 GetGCHandleTable (_thread=0x816ff80) at lib_gc.c:135
#1 0x0806cd75 in _IL_GCHandle_GCValidate (_thread=0x816ff80, handle=82) at lib_gc.c:375
#2 0x40b6040f in ?? ()
#3 0x0816ff80 in ?? ()
#4 0x00000052 in ?? ()
#5 0x0816ff80 in ?? ()
#6 0xbffff218 in ?? ()
#7 0x00000000 in ?? ()
#8 0x0816ff80 in ?? ()
#9 0x08362f28 in ?? ()
#10 0x00000000 in ?? ()
#11 0xbffff220 in ?? ()
#12 0x0807931b in _ILClrCallerImage (thread=0x816ff80) at lib_type.c:51
#13 0x40b60332 in ?? ()
#14 0xbffff230 in ?? ()
#15 0x0816ff80 in ?? ()
#16 0x00000052 in ?? ()
#17 0x08577a70 in ?? ()
#18 0x0816ff80 in ?? ()
#19 0x08362f28 in ?? ()
#20 0x0813edb0 in ?? ()
#21 0x08418f48 in ?? ()
#22 0x00000018 in ?? ()
#23 0xbffff25c in ?? ()
#24 0x40b602eb in ?? ()
#25 0x0816ff80 in ?? ()
#26 0x00000052 in ?? ()
#27 0x08619930 in ?? ()
#28 0x00000000 in ?? ()
---Type <return> to continue, or q <return> to quit---