http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56341
--- Comment #1 from Bernd Edlinger <bernd.edlinger at hotmail dot de> 2013-02-15 13:12:56 UTC --- Created attachment 29465 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29465 proposed patch attached is a patch for gcc-4.6.3 that should resolve this issue. volatile packed struct members are accessed in words if structure is aligned by 2 and in bytes if structure is aligned by 1.
