From: Ingo Molnar <mingo@elte.hu>
To: Eran Mann <emann@mrv.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.32-2
Date: Tue, 7 Dec 2004 16:37:20 +0100 [thread overview]
Message-ID: <20041207153720.GA20712@elte.hu> (raw)
In-Reply-To: <41B5C038.1090501@mrv.com>
* Eran Mann <emann@mrv.com> wrote:
> On my machine, disabling CONFIG_LATENCY_TRACE causes the kernel to
> stop reporting preempt latencies. After
>
> # echo 1 > /proc/sys/kernel/preempt_max_latency
>
> /proc/sys/kernel/preempt_max_latency always shows 1 no matter what
> load is on the machine. I´ve seen this behavior since the first time I
> tried to disable CONFIG_LATENCY_TRACE, around V0.7.31.something.
indeed - there was a thinko in trace_stop_sched_switched() that likely
caused this problem. Does the -32-8 patch (freshly uploaded) work better
for you?
Ingo
next prev parent reply other threads:[~2004-12-07 15:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <OFD07DEEA4.7C243C76-ON86256F5F.007976EC@raytheon.com>
[not found] ` <20041204175636.GA3115@elte.hu>
2004-12-07 14:37 ` [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.32-2 Eran Mann
2004-12-07 15:37 ` Ingo Molnar [this message]
2004-12-07 17:51 ` Eran Mann
2004-12-07 18:40 ` Gene Heskett
2004-12-07 21:47 ` Ingo Molnar
2004-12-08 1:05 ` Gene Heskett
2004-12-08 19:48 ` john cooper
2004-12-08 20:38 ` Gene Heskett
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