Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2

From: Adam Heath (doogie_at_debian.org)
Date: 11/23/04

  • Next message: Adrian Bunk: "[2.6 patch] make W1_DS9490_BRIDGE available" 
    Date:	Mon, 22 Nov 2004 22:43:48 -0600 (CST)
To: Ingo Molnar <mingo@elte.hu>

    On Mon, 22 Nov 2004, wrote:

    > >i have released the -V0.7.30-2 Real-Time Preemption patch, which can be
    > >downloaded from the usual place:
    > >
    > > http://redhat.com/~mingo/realtime-preempt/

    I'm seeing something very odd. It's against 29-0. I also seem to recall
    seeing something similiar reported earlier.

    I'm seeing pauses on my system. Not certain what is causing it. Hitting a
    key on the keyboard unsticks it.

    I don't know if everything stops. I do know that the runtime displays(remote
    xterm displaying continous data, wmnet) stop updating, as did a simple shell
    script loop(while date; do sleep 1; done).

    Last saturday night, I started a large download. When I got back to check on
    it sunday morning, the time on the machine said 1:15am, while it was 11am.

    I am using default RT priorities on the irq threads.

    gradall:/home.local/adam# cat /etc/sysctl.conf
    kernel/trace_verbose=1
    kernel/preempt_max_latency=0

    config is attached.

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