On 2022-04-29 16:46:59 [-0500], Eric W. Biederman wrote: > > The states TASK_STOPPED and TASK_TRACE are special in they can not > handle spurious wake-ups. This plus actively depending upon and > changing the value of tsk->__state causes problems for PREEMPT_RT and > Peter's freezer rewrite.
PREEMPT_RT wise, I had to duct tape wait_task_inactive() and remove the preempt-disable section in ptrace_stop() (like previously). This reduces the amount of __state + saved_state checks and looks otherwise stable in light testing. Sebastian _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um
