From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Christoph Hellwig <hch@infradead.org>,
Andrew Morton <akpm@osdl.org>,
Arjan van de Ven <arjanv@infradead.org>,
linux-kernel@vger.kernel.org
Subject: Re: [patch] Voluntary Kernel Preemption, 2.6.12-rc4-mm2
Date: Wed, 25 May 2005 01:34:56 +1000 [thread overview]
Message-ID: <429349A0.90305@yahoo.com.au> (raw)
In-Reply-To: <1116948792.6280.26.camel@laptopd505.fenrus.org>
Arjan van de Ven wrote:
> On Wed, 2005-05-25 at 01:21 +1000, Nick Piggin wrote:
>
>>IIRC, the reason (when you wrote the code) was that you didn't
>>want to enable preempt either because of binary compatibility, or
>>because of bugs? Well I think the bug issue is no more since your
>>debug patches went in, and the compatibility reason may be a fine
>>one for a distro kernel, but not a kernel.org one.
>
>
> I can't imagine binary compatibility having been a reason. At least for
> the RH distros it really isn't kernel wise. At All.
> PREEMPT was (and is?) a stability risk and so you'll see RHEL4 not
> having it enabled. But it has nothing to do with in-kernel binary
> compatibility; that just doesn't exist, kernel.org or distro alike.
>
Yeah that was the reason.
next prev parent reply other threads:[~2005-05-24 15:36 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-24 12:15 [patch] remove set_tsk_need_resched() from init_idle() Ingo Molnar
2005-05-24 13:21 ` [patch] Voluntary Kernel Preemption, 2.6.12-rc4-mm2 Ingo Molnar
2005-05-24 14:56 ` Christoph Hellwig
2005-05-24 15:09 ` Ingo Molnar
2005-05-24 15:21 ` Nick Piggin
2005-05-24 15:33 ` Arjan van de Ven
2005-05-24 15:34 ` Nick Piggin [this message]
2005-05-24 15:39 ` Ingo Molnar
2005-05-24 15:59 ` Nick Piggin
2005-05-24 16:11 ` Ingo Molnar
2005-05-25 19:48 ` Christoph Hellwig
2005-05-24 14:06 ` [patch] remove set_tsk_need_resched() from init_idle() Ingo Molnar
2005-05-24 15:02 ` Nick Piggin
2005-05-24 15:05 ` Ingo Molnar
2005-05-24 15:24 ` Nick Piggin
2005-05-24 15:27 ` Ingo Molnar
2005-05-24 15:42 ` Ingo Molnar
2005-05-24 16:00 ` Nick Piggin
2005-05-25 12:24 ` Andrew Morton
2005-05-25 13:51 ` Ingo Molnar
2005-05-25 13:58 ` Ingo Molnar
2005-05-28 16:32 ` Russell King
2005-05-28 18:51 ` Ingo Molnar
2005-05-29 4:05 ` Nick Piggin
2005-05-29 6:01 ` Ingo Molnar
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