From: Con Kolivas <kernel@kolivas.org>
To: mru@users.sourceforge.net (Måns Rullgård), linux-kernel@vger.kernel.org
Subject: Re: [PATCH]O18.1int
Date: Mon, 25 Aug 2003 21:37:06 +1000 [thread overview]
Message-ID: <200308252137.06060.kernel@kolivas.org> (raw)
In-Reply-To: <yw1x1xvac7ju.fsf@users.sourceforge.net>
On Mon, 25 Aug 2003 21:15, Måns Rullgård wrote:
> Con Kolivas <kernel@kolivas.org> writes:
> >> Vanilla test1 has the spin effect. Test2 doesn't. I haven't tried
> >> vanilla test3 or test4. As I've said, the O16.2-O16.3 patch
> >> introduced the problem. With that patch reversed, everything is
> >> fine. What problem does that patch fix?
> >
> > It's a generic fix for priority inversion but it induces badness in smp,
> > and latency in task preemption on up so it's not suitable.
>
> Now I'm confused. If that patch is bad, then why is it in O18?
No, the 16.2 patch is bad. 16.3 backed it out.
Con
next prev parent reply other threads:[~2003-08-25 11:30 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-23 5:55 [PATCH]O18.1int Con Kolivas
2003-08-23 9:08 ` [PATCH]O18.1int Thomas Schlichter
2003-08-23 9:18 ` [PATCH]O18.1int Nick Piggin
2003-08-23 12:22 ` [PATCH]O18.1int Con Kolivas
2003-08-23 12:21 ` [PATCH]O18.1int Con Kolivas
2003-08-23 9:32 ` [PATCH]O18.1int Andrew Morton
2003-08-23 9:49 ` [PATCH]O18.1int Nick Piggin
2003-08-23 16:58 ` [PATCH]O18.1int Con Kolivas
2003-08-23 21:49 ` [PATCH]O18.1int Andrew Morton
2003-08-24 2:46 ` [PATCH]O18.1int Con Kolivas
2003-08-23 13:29 ` [PATCH]O18.1int Con Kolivas
2003-08-25 9:24 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 9:42 ` [PATCH]O18.1int Alex Riesen
2003-08-25 10:16 ` [PATCH]O18.1int Con Kolivas
2003-08-25 10:21 ` [PATCH]O18.1int Alex Riesen
2003-08-25 21:02 ` [PATCH]O18.1int Alex Riesen
2003-08-25 22:48 ` [PATCH]O18.1int Con Kolivas
2003-08-25 23:00 ` [PATCH]O18.1int Alex Riesen
2003-08-26 22:03 ` [PATCH]O18.1int Alex Riesen
2003-08-25 10:34 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 10:50 ` [PATCH]O18.1int Con Kolivas
2003-08-25 11:15 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 11:37 ` Con Kolivas [this message]
2003-08-25 11:58 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 12:28 ` [PATCH]O18.1int Con Kolivas
2003-08-25 12:49 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 13:32 ` [PATCH]O18.1int Con Kolivas
2003-08-25 10:17 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 10:34 ` [PATCH]O18.1int Alex Riesen
2003-08-25 11:23 ` [PATCH]O18.1int Måns Rullgård
2003-08-25 10:48 ` [PATCH]O18.1int Con Kolivas
[not found] ` <3F49E482.7030902@cyberone.com.au>
[not found] ` <20030825102933.GA14552@Synopsys.COM>
2003-08-26 22:20 ` [PATCH]O18.1int Alex Riesen
2003-08-27 2:26 ` [PATCH]O18.1int Nick Piggin
2003-08-23 22:03 [PATCH]O18.1int Voluspa
2003-08-24 4:04 ` [PATCH]O18.1int Con Kolivas
2003-08-28 12:23 [PATCH]O18.1int Guillaume Chazarain
2003-08-28 13:43 [PATCH]O18.1int Guillaume Chazarain
2003-08-28 13:58 ` [PATCH]O18.1int Nick Piggin
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