On Monday 19 March 2007 04:18 pm, Jung-uk Kim wrote: > Correct. If you load %gs, %fs, or any other segment registers from > user land (e.g., movw %eax, %gs) and use it (e.g., movw %gs:0, > %eax), you are doomed. I meant 'movl', of course. X-) Sorry for the typos, Jung-uk Kim