(snip) > The crucial thing is mmap some region of io space > read from a page write to the same page > Repeat and rinse, something will corrupt the system. > > reads alone are ok. > writes alone are ok. > write followed by any combination of reads or writes is ok > read followed by write = trouble
I am an embedded PPC Linux novice, so, tell me if I'm way off base. This sounds like a pipeline problem; out of order I/O execution. Could there be an "eieio" missing somewhere? Greg Griffes ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
