From: Bill Huey (hui) <billh@gnuppy.monkey.org>
To: Esben Nielsen <nielsen.esben@gogglemail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Robert Crocombe <rcrocomb@gmail.com>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
Darren Hart <dvhltc@us.ibm.com>,
"Bill Huey (hui)" <billh@gnuppy.monkey.org>
Subject: Re: [Patch] restore the RCU callback to defer put_task_struct() Re: Problems with 2.6.17-rt8
Date: Wed, 9 Aug 2006 19:18:35 -0700 [thread overview]
Message-ID: <20060810021835.GB12769@gnuppy.monkey.org> (raw)
In-Reply-To: <Pine.LNX.4.64.0608090050500.23474@frodo.shire>
On Thu, Aug 10, 2006 at 12:05:57AM +0200, Esben Nielsen wrote:
> I had a long discussion with Paul McKenney about this. I opposed the patch
> from a latency point of view: Suddenly a high-priority RT task could be
> made into releasing a task_struct. It would be better for latencies to
> defer it to a low priority task.
>
> The conclusion we ended up with was that it is not a job for the RCU
> system, but it ought to be deferred to some other low priority task to
> free the task_struct.
I agree. It's just hack to get it not to crash at this time. It really
should be done in another facility or utilizing another threading context.
bill
next prev parent reply other threads:[~2006-08-10 2:21 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <e6babb600608012231r74470b77x6e7eaeab222ee160@mail.gmail.com>
2006-08-02 5:37 ` Robert Crocombe
2006-08-02 17:51 ` Steven Rostedt
2006-08-03 11:48 ` Robert Crocombe
2006-08-03 14:27 ` Steven Rostedt
2006-08-03 15:08 ` Robert Crocombe
2006-08-03 15:27 ` Steven Rostedt
2006-08-03 15:48 ` Robert Crocombe
2006-08-03 16:04 ` Steven Rostedt
2006-08-03 17:16 ` Robert Crocombe
2006-08-03 20:22 ` Bill Huey
2006-08-03 20:54 ` Steven Rostedt
2006-08-03 21:18 ` Bill Huey
2006-08-08 2:56 ` [Patch] restore the RCU callback to defer put_task_struct() " Bill Huey
2006-08-08 3:05 ` Bill Huey
2006-08-08 18:46 ` Robert Crocombe
2006-08-08 19:06 ` Steven Rostedt
2006-08-08 21:35 ` Robert Crocombe
2006-08-08 21:44 ` Steven Rostedt
2006-08-08 22:10 ` Robert Crocombe
2006-08-09 17:19 ` Robert Crocombe
2006-08-09 0:35 ` Bill Huey
2006-08-11 7:47 ` Bill Huey
2006-08-11 14:52 ` Robert Crocombe
2006-08-09 22:05 ` Esben Nielsen
2006-08-10 0:00 ` Steven Rostedt
2006-08-10 2:18 ` Bill Huey [this message]
2006-08-11 1:06 ` Bill Huey
2006-08-11 8:16 ` Esben Nielsen
2006-08-11 8:46 ` Bill Huey
2006-08-11 15:00 ` Robert Crocombe
2006-08-11 21:18 ` Bill Huey
[not found] ` <20060811221054.GA32459@gnuppy.monkey.org>
2006-08-14 17:56 ` Robert Crocombe
2006-08-14 23:44 ` Bill Huey
2006-08-15 10:43 ` Bill Huey
2006-08-15 17:53 ` Robert Crocombe
2006-08-18 11:59 ` Bill Huey
2006-08-22 0:21 ` Robert Crocombe
2006-08-22 1:37 ` rtmutex assert failure (was [Patch] restore the RCU callback...) Bill Huey
2006-08-22 23:20 ` Bill Huey
2006-08-22 23:21 ` Bill Huey
2006-08-23 17:14 ` Robert Crocombe
2006-08-23 17:24 ` Robert Crocombe
2006-08-23 20:20 ` Bill Huey
2006-08-23 21:05 ` Bill Huey
2006-08-23 21:08 ` Bill Huey
2006-08-24 1:22 ` Robert Crocombe
2006-08-24 1:46 ` Bill Huey
2006-08-25 7:19 ` Bill Huey
2006-08-26 1:24 ` Robert Crocombe
2006-08-26 1:28 ` Robert Crocombe
2006-08-26 2:37 ` Robert Crocombe
2006-08-26 10:28 ` Bill Huey
2006-08-26 10:49 ` Bill Huey
2006-08-28 18:33 ` Robert Crocombe
2006-08-28 20:28 ` Bill Huey
2006-08-29 4:05 ` Robert Crocombe
2006-08-29 17:11 ` Bill Huey
2006-08-29 17:19 ` Robert Crocombe
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