From: Ingo Molnar <mingo@elte.hu>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andi Kleen <andi@firstfloor.org>,
Radoslaw Szkodzinski <lkml@astralstorm.puszkin.org>,
Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [feature] automatically detect hung TASK_UNINTERRUPTIBLE tasks
Date: Mon, 3 Dec 2007 14:57:41 +0100 [thread overview]
Message-ID: <20071203135741.GB4245@elte.hu> (raw)
In-Reply-To: <84144f020712030550x1cb4dac7q8eeb111f7784590d@mail.gmail.com>
* Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> Hi,
>
> On Mon, Dec 03, 2007 at 12:59:00PM +0100, Ingo Molnar wrote:
> > > "audit thousands of callsites in 8 million lines of code first" is a
> > > nice euphemism for hiding from the blame forever. We had 10 years for it
>
> On Dec 3, 2007 2:13 PM, Andi Kleen <andi@firstfloor.org> wrote:
> > Ok your approach is then to "let's warn about it and hope
> > it will go away"
>
> It's more like "lets warn about it and fix the problems when we find
> some." Btw, how is this different from how the lockdep patches went
> in?
yeah, it's quite similar. (in fact this feature is expected to have a
false positive rate lower than that of lockdep) The backtraces are
essential as well, they help kernel developer find the bugs.
Ingo
next prev parent reply other threads:[~2007-12-03 13:58 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-01 9:20 Ingo Molnar
2007-12-01 18:31 ` David Rientjes
2007-12-01 18:33 ` Ingo Molnar
2007-12-01 18:42 ` David Rientjes
2007-12-01 19:36 ` Ingo Molnar
2007-12-02 0:54 ` Ingo Oeser
2007-12-02 8:58 ` Ingo Molnar
2007-12-02 15:52 ` David Rientjes
2007-12-02 18:57 ` Andi Kleen
2007-12-02 18:59 ` Ingo Molnar
2007-12-02 19:41 ` Arjan van de Ven
2007-12-02 20:08 ` Ingo Molnar
2007-12-02 20:09 ` Andi Kleen
2007-12-02 20:26 ` Ingo Molnar
2007-12-02 20:47 ` Andi Kleen
2007-12-02 21:10 ` Ingo Molnar
2007-12-02 21:19 ` Andi Kleen
2007-12-02 21:24 ` Ingo Molnar
2007-12-02 21:34 ` Andi Kleen
2007-12-02 22:25 ` Ingo Molnar
2007-12-02 22:18 ` Arjan van de Ven
2007-12-02 22:20 ` Ingo Molnar
2007-12-03 0:00 ` Andi Kleen
2007-12-02 22:43 ` Arjan van de Ven
2007-12-03 0:07 ` Andi Kleen
2007-12-03 0:59 ` Arjan van de Ven
2007-12-03 9:55 ` Andi Kleen
2007-12-03 10:15 ` Radoslaw Szkodzinski
2007-12-03 10:23 ` Ingo Molnar
2007-12-03 10:27 ` Andi Kleen
2007-12-03 10:38 ` Ingo Molnar
2007-12-03 11:04 ` Andi Kleen
2007-12-03 11:59 ` Ingo Molnar
2007-12-03 12:13 ` Andi Kleen
2007-12-03 12:28 ` Ingo Molnar
2007-12-03 12:41 ` Andi Kleen
2007-12-03 13:00 ` Ingo Molnar
2007-12-03 13:14 ` Andi Kleen
[not found] ` <20071203132955.GA31354@elte.hu>
2007-12-03 13:41 ` Radoslaw Szkodzinski
2007-12-03 13:59 ` Ingo Molnar
2007-12-03 14:15 ` Andi Kleen
2007-12-03 13:48 ` Andi Kleen
2007-12-03 13:55 ` Ingo Molnar
2007-12-03 14:17 ` Andi Kleen
2007-12-03 14:33 ` Ingo Molnar
2007-12-03 17:02 ` Ray Lee
2007-12-03 13:50 ` Pekka Enberg
2007-12-03 13:57 ` Ingo Molnar [this message]
2007-12-03 14:14 ` Andi Kleen
2007-12-03 14:19 ` Ingo Molnar
2007-12-03 17:57 ` Andrew Morton
2007-12-03 18:28 ` Rafael J. Wysocki
2007-12-03 19:24 ` Ingo Molnar
2007-12-03 22:47 ` Rafael J. Wysocki
2007-12-04 0:05 ` Ingo Molnar
2007-12-03 15:23 ` Arjan van de Ven
2007-12-03 16:36 ` Andi Kleen
2007-12-05 22:31 ` Mark Lord
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