Traceback (most recent call last):
  File "/usr/bin/bootchart", line 23, in <module>
    sys.exit(main())
  File "/usr/lib/pymodules/python2.6/pybootchartgui/main.py", line 137, in main
    render()
  File "/usr/lib/pymodules/python2.6/pybootchartgui/main.py", line 128, in render
    batch.render(writer, res, options, filename)
  File "/usr/lib/pymodules/python2.6/pybootchartgui/batch.py", line 41, in render
    draw.render(ctx, options, *res)
  File "/usr/lib/pymodules/python2.6/pybootchartgui/draw.py", line 299, in render
    draw_process_bar_chart(ctx, proc_tree, times, curr_y + bar_h, w, h)
  File "/usr/lib/pymodules/python2.6/pybootchartgui/draw.py", line 319, in draw_process_bar_chart
    draw_processes_recursively(ctx, root, proc_tree, y, proc_h, chart_rect)
  File "/usr/lib/pymodules/python2.6/pybootchartgui/draw.py", line 357, in draw_processes_recursively
    child_x, child_y = draw_processes_recursively(ctx, child, proc_tree, next_y, proc_h, rect)
  File "/usr/lib/pymodules/python2.6/pybootchartgui/draw.py", line 349, in draw_processes_recursively
    draw_process_activity_colors(ctx, proc, proc_tree, x, y, w, proc_h, rect)
  File "/usr/lib/pymodules/python2.6/pybootchartgui/draw.py", line 376, in draw_process_activity_colors
    state = get_proc_state( sample.state )
  File "/usr/lib/pymodules/python2.6/pybootchartgui/draw.py", line 105, in get_proc_state
    return "RSDTZXW".index(flag) + 1
ValueError: substring not found