I ran into an assertion failure when stress testing the fix for the following bug:

    6456834 3/3 part of AsyncGetCallTrace fix for 6379830 in needed on
                Solaris SPARC

Here is the assertion failure message:

# Internal Error (src/share/vm/oops/methodOop.cpp, 181 [ Patched ]), pid=17493, tid=2
#
# Java VM: Java HotSpot(TM) Client VM (mustang-fastdebug-debug mixed mode)
#
# Error: assert((is_native() && bci == 0) || (!is_native() && 0 <= bci && bci <
code_size()),"illegal bci")