From: Peter Zijlstra <peterz@infradead.org>
To: Yong Zhang <yong.zhang0@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>,
samu.p.onkalo@nokia.com, mingo@elte.hu,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
tglx <tglx@linutronix.de>, Steven Rostedt <rostedt@goodmis.org>
Subject: Re: Bug in scheduler when using rt_mutex
Date: Fri, 21 Jan 2011 14:40:58 +0100 [thread overview]
Message-ID: <1295617258.28776.274.camel@laptop> (raw)
In-Reply-To: <20110121122412.GA5071@zhy>
On Fri, 2011-01-21 at 20:24 +0800, Yong Zhang wrote:
> > Index: linux-2.6/kernel/sched.c
> > ===================================================================
> > --- linux-2.6.orig/kernel/sched.c
> > +++ linux-2.6/kernel/sched.c
> > @@ -2624,6 +2624,8 @@ void sched_fork(struct task_struct *p, i
> >
> > if (!rt_prio(p->prio))
> > p->sched_class = &fair_sched_class;
> > + else
> > + p->se.vruntime = 0;
>
> This can be moved to __sched_fork()
But we cannot do it unconditionally, we want to inherit the parent's
->vruntime when we're a fair task clone.
next prev parent reply other threads:[~2011-01-21 13:40 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-17 14:42 Bug in scheduler when using rt_mutex Onkalo Samu
2011-01-17 15:00 ` Peter Zijlstra
2011-01-17 15:15 ` samu.p.onkalo
2011-01-17 15:28 ` Peter Zijlstra
2011-01-17 16:00 ` Peter Zijlstra
2011-01-18 8:23 ` Onkalo Samu
2011-01-18 8:59 ` Yong Zhang
2011-01-18 13:35 ` Peter Zijlstra
2011-01-18 14:25 ` Onkalo Samu
2011-01-19 2:38 ` Yong Zhang
2011-01-19 3:43 ` Mike Galbraith
2011-01-19 4:35 ` Yong Zhang
2011-01-19 5:40 ` Mike Galbraith
2011-01-19 6:09 ` Yong Zhang
2011-01-19 6:37 ` Mike Galbraith
2011-01-19 7:19 ` Ingo Molnar
2011-01-19 7:41 ` Mike Galbraith
2011-01-19 9:44 ` Peter Zijlstra
2011-01-19 10:38 ` Peter Zijlstra
2011-01-19 11:30 ` Peter Zijlstra
2011-01-19 12:58 ` Onkalo Samu
2011-01-19 13:13 ` Onkalo Samu
2011-01-19 13:30 ` Peter Zijlstra
2011-01-20 4:18 ` Yong Zhang
2011-01-20 4:27 ` Yong Zhang
2011-01-20 5:32 ` Yong Zhang
2011-01-20 4:59 ` Mike Galbraith
2011-01-20 5:30 ` Yong Zhang
2011-01-20 6:12 ` Mike Galbraith
2011-01-20 7:06 ` Yong Zhang
2011-01-20 8:37 ` Mike Galbraith
2011-01-20 9:07 ` Yong Zhang
2011-01-20 10:07 ` Mike Galbraith
2011-01-21 11:08 ` Peter Zijlstra
2011-01-21 12:24 ` Yong Zhang
2011-01-21 13:40 ` Peter Zijlstra [this message]
2011-01-21 15:03 ` Yong Zhang
2011-01-21 15:10 ` Peter Zijlstra
2011-01-21 13:15 ` Yong Zhang
2011-01-20 7:07 ` Onkalo Samu
2011-01-21 6:25 ` Onkalo Samu
2011-01-20 3:10 ` Yong Zhang
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