Added wakeup call during exit in case pager was trying to suspend us.

src/api/thread.c

@@ -444,6 +444,7 @@ int sys_thread_control(unsigned int flags, struct task_ids *ids)
 	case THREAD_RECYCLE:
 		ret = thread_recycle(task);
 		break;
+
 	default:
 		ret = -EINVAL;
 	}

src/generic/scheduler.c

@@ -343,6 +343,12 @@ void sched_die_child(void)
 	BUG_ON(scheduler.prio_total < 0);
 	preempt_enable();
 
+	/*
+	 * Clear pager waitqueue in case it issued
+	 * a suspend on us (for any reason)
+	 */
+	wake_up(&current->wqh_pager, 0);
+
 	/*
 	 * Unlock task_dead queue,
 	 * pager can safely delete us
@@ -395,7 +401,7 @@ void sched_suspend_sync(void)
 	 * we silently do so. Noone is waiting us.
 	 */
 	if (current->pagerid != current->tid)
-		wake_up_task(tcb_find(current->pagerid), 0);
+		wake_up(&current->wqh_pager, 0);
 
 	schedule();
 }

src/generic/tcb.c

@@ -141,6 +141,13 @@ void ktcb_list_add(struct ktcb *new, struct ktcb_list *ktcb_list)
 	mutex_unlock(&ktcb_list->list_lock);
 }
 
+void __ktcb_list_add_nolock(struct ktcb *new, struct ktcb_list *ktcb_list)
+{
+	BUG_ON(!list_empty(&new->task_list));
+	BUG_ON(!++ktcb_list->count);
+	list_insert(&new->task_list, &ktcb_list->list);
+}
+
 void tcb_add(struct ktcb *new)
 {
 	struct container *c = new->container;