From: Peter Zijlstra <peterz@infradead.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
nicolas.pitre@linaro.org,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Mike Galbraith <umgwanakikbuti@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH 0/8] sched,idle: need resched polling rework
Date: Tue, 3 Jun 2014 08:51:01 +0200 [thread overview]
Message-ID: <20140603065101.GF11096@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <CALCETrWnG7fSuinDv+GAHsnTLJ-6xn+_1LB2XdLGVXcC=TQURA@mail.gmail.com>
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On Mon, Jun 02, 2014 at 11:40:26PM -0700, Andy Lutomirski wrote:
> Bugs found so far:
>
> defined(SMP) should be defined(CONFIG_SMP)
>
> You're testing polling on the task being woken, which cannot possibly
> succeed: the only tasks that have any business polling are the idle
> tasks. Something like this seems to help:
Urgh,. comes from doing too many things at once.. Thanks, I'll go fix
up.
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next prev parent reply other threads:[~2014-06-03 6:51 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-11 13:42 [RFC][PATCH 0/8] sched,idle: need resched polling rework Peter Zijlstra
2014-04-11 13:42 ` [RFC][PATCH 1/8] sched,idle,alpha: Switch from TS_POLLING to TIF_POLLING_NRFLAG Peter Zijlstra
2014-04-11 14:38 ` Richard Henderson
2014-04-11 13:42 ` [RFC][PATCH 2/8] sched,idle,tile: " Peter Zijlstra
2014-04-11 15:15 ` Chris Metcalf
2014-04-11 15:30 ` Peter Zijlstra
2014-04-11 13:42 ` [RFC][PATCH 3/8] sched,idle,ia64: " Peter Zijlstra
2014-04-11 13:42 ` [RFC][PATCH 4/8] sched,idle,x86: " Peter Zijlstra
2014-04-11 13:42 ` [RFC][PATCH 5/8] sched,idle: Remove TS_POLLING support Peter Zijlstra
2014-04-11 13:42 ` [RFC][PATCH 6/8] sched,idle: Avoid spurious wakeup IPIs Peter Zijlstra
2014-04-13 21:41 ` Nicolas Pitre
2014-05-09 13:37 ` James Hogan
2014-05-09 13:37 ` James Hogan
2014-05-09 14:15 ` Peter Zijlstra
2014-05-09 14:15 ` Peter Zijlstra
2014-05-09 14:40 ` Catalin Marinas
2014-05-09 14:40 ` Catalin Marinas
2014-05-09 14:50 ` Peter Zijlstra
2014-05-09 14:50 ` Peter Zijlstra
2014-05-09 14:57 ` Catalin Marinas
2014-05-09 14:57 ` Catalin Marinas
2014-05-09 17:02 ` Peter Zijlstra
2014-05-09 17:02 ` Peter Zijlstra
2014-05-09 17:06 ` Peter Zijlstra
2014-05-09 17:06 ` Peter Zijlstra
2014-05-09 17:09 ` Catalin Marinas
2014-05-09 17:09 ` Catalin Marinas
2014-05-09 17:20 ` Peter Zijlstra
2014-05-09 17:20 ` Peter Zijlstra
2014-05-19 12:54 ` [tip:sched/arch] arm64: Remove TIF_POLLING_NRFLAG tip-bot for Peter Zijlstra
2014-05-22 12:26 ` [tip:sched/core] " tip-bot for Peter Zijlstra
2014-05-09 14:51 ` [RFC][PATCH 6/8] sched,idle: Avoid spurious wakeup IPIs James Hogan
2014-05-09 14:51 ` James Hogan
2014-05-09 14:51 ` James Hogan
[not found] ` <536CEB7E.9080007-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
2014-05-15 9:17 ` James Hogan
2014-05-15 9:17 ` James Hogan
2014-05-15 9:17 ` James Hogan
2014-05-19 12:54 ` [tip:sched/arch] metag: Remove TIF_POLLING_NRFLAG tip-bot for James Hogan
2014-05-22 12:26 ` [tip:sched/core] " tip-bot for James Hogan
2014-04-11 13:42 ` [RFC][PATCH 7/8] sched,idle: Delay clearing the polling bit Peter Zijlstra
2014-04-13 21:51 ` Nicolas Pitre
2014-04-11 13:42 ` [RFC][PATCH 8/8] sched,idle: Reflow cpuidle_idle_call() Peter Zijlstra
2014-04-13 21:36 ` Nicolas Pitre
2014-04-14 8:59 ` Peter Zijlstra
2014-04-14 9:25 ` Peter Zijlstra
2014-04-14 13:55 ` Nicolas Pitre
2014-04-11 15:00 ` [RFC][PATCH 0/8] sched,idle: need resched polling rework Andy Lutomirski
2014-04-11 15:14 ` Peter Zijlstra
2014-05-22 12:58 ` Peter Zijlstra
2014-05-22 13:09 ` Peter Zijlstra
2014-05-29 0:01 ` Andy Lutomirski
2014-05-29 6:48 ` Peter Zijlstra
2014-06-03 6:40 ` Andy Lutomirski
2014-06-03 6:51 ` Peter Zijlstra [this message]
2014-06-03 10:43 ` Peter Zijlstra
2014-06-03 14:02 ` Peter Zijlstra
2014-06-03 16:05 ` Andy Lutomirski
2014-06-03 16:19 ` Peter Zijlstra
2014-06-03 16:52 ` Andy Lutomirski
2014-06-03 17:00 ` Peter Zijlstra
2014-06-03 18:28 ` Peter Zijlstra
2014-06-03 18:44 ` Andy Lutomirski
2014-06-03 20:07 ` Andy Lutomirski
2014-04-12 8:35 ` Mike Galbraith
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