23 Haz 2007 Cts tarihinde, S.Çağlar Onur şunları yazmıştı: 
> Hi Ingo;
>
> 23 Haz 2007 Cts tarihinde, Ingo Molnar şunları yazmıştı:
> > As usual, any sort of feedback, bugreport, fix and suggestion is more
> > than welcome!
>
> [EMAIL PROTECTED] linux-2.6 $ LC_ALL=C make
>   CHK     include/linux/version.h
>   CHK     include/linux/utsrelease.h
>   CALL    scripts/checksyscalls.sh
>   CHK     include/linux/compile.h
>   CC      kernel/sched.o
> kernel/sched.c:745:28: sched_idletask.c: No such file or directory

Ahh and this happens with [1], grabbing sched_idletask.c from .18 one solves 
the problem...

Index: linux/kernel/sched_idletask.c
===================================================================
--- /dev/null
+++ linux/kernel/sched_idletask.c
@@ -0,0 +1,68 @@
+/*
+ * idle-task scheduling class.
+ *
+ * (NOTE: these are not related to SCHED_IDLE tasks which are
+ *  handled in sched_fair.c)
+ */
+
+/*
+ * Idle tasks are unconditionally rescheduled:
+ */
+static void check_preempt_curr_idle(struct rq *rq, struct task_struct *p)
+{
+       resched_task(rq->idle);
+}
+
+static struct task_struct *pick_next_task_idle(struct rq *rq, u64 now)
+{
+       schedstat_inc(rq, sched_goidle);
+
+       return rq->idle;
+}
+
+/*
+ * It is not legal to sleep in the idle task - print a warning
+ * message if some code attempts to do it:
+ */
+static void
+dequeue_task_idle(struct rq *rq, struct task_struct *p, int sleep, u64 now)
+{
+       spin_unlock_irq(&rq->lock);
+       printk(KERN_ERR "bad: scheduling from the idle thread!\n");
+       dump_stack();
+       spin_lock_irq(&rq->lock);
+}
+
+static void put_prev_task_idle(struct rq *rq, struct task_struct *prev, u64 
now)
+{
+}
+
+static struct task_struct *load_balance_start_idle(struct rq *rq)
+{
+       return NULL;
+}
+
+static void task_tick_idle(struct rq *rq, struct task_struct *curr)
+{
+}
+
+/*
+ * Simple, special scheduling class for the per-CPU idle tasks:
+ */
+struct sched_class idle_sched_class __read_mostly = {
+       /* no enqueue/yield_task for idle tasks */
+
+       /* dequeue is not valid, we print a debug message there: */
+       .dequeue_task           = dequeue_task_idle,
+
+       .check_preempt_curr     = check_preempt_curr_idle,
+
+       .pick_next_task         = pick_next_task_idle,
+       .put_prev_task          = put_prev_task_idle,
+
+       .load_balance_start     = load_balance_start_idle,
+       /* no .load_balance_next for idle tasks */
+
+       .task_tick              = task_tick_idle,
+       /* no .task_new for idle tasks */
+};


[1] 
http://people.redhat.com/mingo/cfs-scheduler/sched-cfs-v2.6.22-git-v18.patch

Cheers
-- 
S.Çağlar Onur <[EMAIL PROTECTED]>
http://cekirdek.pardus.org.tr/~caglar/

Linux is like living in a teepee. No Windows, no Gates and an Apache in house!

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