linux-kernel - Re: [regression] Crash in wb_clear

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Date:	Tue, 06 Jul 2010 08:25:46 +0200
From:	Jens Axboe <axboe@...nel.dk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
CC:	Bill Davidsen <davidsen@....com>,
	Christoph Hellwig <hch@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [regression] Crash in wb_clear_pending()

On 2010-07-06 01:34, Linus Torvalds wrote:
> On Mon, Jul 5, 2010 at 2:19 PM, Bill Davidsen <davidsen@....com> wrote:
>>
>> Absent a small fix, and given that the big fix has a lot more testing than
>> any new patch might, in this case the quickie might be undesirable.
>> Particularly since posters here seem sure that code will be replaced in the
>> next version anyway, and lightly tested patch to obsolete code is actually
>> less conservative.
> 
> I have to agree. Especially as the "big patch" just removes the
> fragile code that caused the problem in the first place. So in this
> case I do suspect that the bigger patch ends up being the safer one.

OK, it's up to you.

> But I obviously don't actually see the problem, so it would be good to
> get confirmation that Christoph's patch actually fixes things first.
> Ingo, does the one in this thread apply for you?

I'll update for-linus, Ingo can try that.

-- 
Jens Axboe

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