Date:        26 Nov 2000 21:38:06 +0100
    From:        Sean Doran <smd@ebone.net>
    Message-ID:  <52u28uo4ep.fsf@sean.ebone.net>

  | Oh yeah cool and right after magic_next_syscall() your
  | userland thread context changes...

Sean, stop stirring...

As if a setuid program would have one thread running privileged, and
another running user supplied code as the user (and still be worried
enough about security to care about a race like that).

kre