From: Thomas Gleixner <tglx@linutronix.de>
To: Daniel Walker <dwalker@mvista.com>
Cc: linux-kernel@vger.kernel.org,
Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>,
Ingo Molnar <mingo@elte.hu>, Oleg Nesterov <oleg@tv-sign.ru>
Subject: Re: patch] Real-Time Preemption, plist fixes
Date: Sun, 05 Jun 2005 12:53:48 +0200 [thread overview]
Message-ID: <1117968828.20785.286.camel@tglx.tec.linutronix.de> (raw)
In-Reply-To: <1117960337.20785.251.camel@tglx.tec.linutronix.de>
On Sun, 2005-06-05 at 10:32 +0200, Thomas Gleixner wrote:
> On Sat, 2005-06-04 at 17:53 -0700, Daniel Walker wrote:
> > >
> > I already released a patch to fix this.
>
> Nice to know. Where ?
>
Ingo pointed me at the patch.
Sorry, but I really don't see the release there.
> The first time I saw these latencies I has the PI abstraction applied, and
> the most recent time I had the attached patch applied only. This patch is
> small so I'm not sure if it could have that type of effect on task
> latency.
It fixes a problem and uncovers others, but your comment is more a
question than an explanation for the urgency of the fix. In fact the
original implementation leads to solid deadlocks in
plist_for_each_safe() loops.
I really can't blame Ingo for ignoring this.
tglx
next prev parent reply other threads:[~2005-06-05 10:53 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-05 0:17 Thomas Gleixner
2005-06-05 0:53 ` Daniel Walker
2005-06-05 2:33 ` Plist cleanup on RT Daniel Walker
2005-06-05 8:32 ` patch] Real-Time Preemption, plist fixes Thomas Gleixner
2005-06-05 10:53 ` Thomas Gleixner [this message]
2005-06-05 7:58 ` Esben Nielsen
2005-06-05 8:05 ` Thomas Gleixner
2005-06-05 8:42 ` Esben Nielsen
2005-06-05 8:53 ` Ingo Molnar
2005-06-05 9:00 ` Esben Nielsen
2005-06-05 8:18 ` Ingo Molnar
2005-06-05 8:21 ` Thomas Gleixner
2005-06-05 8:26 ` [patch] " Ingo Molnar
2005-06-05 8:53 ` Thomas Gleixner
2005-06-05 9:47 ` Ingo Molnar
2005-06-05 15:08 ` Daniel Walker
2005-06-05 8:54 ` Esben Nielsen
2005-06-05 13:49 ` Ingo Molnar
2005-06-05 14:35 ` Esben Nielsen
2005-06-06 7:32 ` Ingo Molnar
2005-06-06 8:57 ` Esben Nielsen
2005-06-06 12:08 ` Ingo Molnar
2005-06-06 15:04 ` Daniel Walker
2005-06-05 14:51 ` Daniel Walker
2005-06-05 15:17 ` Thomas Gleixner
2005-06-05 15:21 ` Daniel Walker
2005-06-05 15:02 ` Daniel Walker
2005-06-05 16:29 ` Daniel Walker
2005-06-06 7:44 ` Ingo Molnar
2005-06-06 14:49 ` Daniel Walker
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