On 04/27, Eric W. Biederman wrote: > > The ptrace parental relationship definitely has the potential to be a > graph with cycles. Which as you point out is not fine. > > The result is very nice and I don't want to give it up. I suspect > something ptrace cycles are always a problem and can simply be > forbidden.
OK, please consider another case. We have a parent P and its child C. C traces P. This is not that unusual, I don't think we can forbid this case. P reports an event and calls do_notify_parent_cldstop(). C receives SIGSTOP and calls do_notify_parent_cldstop() too. Oleg. _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um
