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    SubjectRe: rt20 patch question
    Steven Rostedt wrote:
    > On Fri, 12 May 2006, Mark Hounschell wrote:
    >
    >> Ingo Molnar wrote:
    >>> Mark, does this fix the problem?
    >>>
    >>> Ingo
    >>>
    > [...]
    >> It looks like it does fix at least the BUG and network disconnection
    >> problem I am/was seeing. It's been 45 minutes or so without a glitch.
    >>
    >> I'm still not running this in complete preempt mode. Should I see if it
    >> helps that situation also? It only took a few minutes for that one to
    >> show up.
    >>
    >
    >
    > I was looking at the logdump, but I don't see anything spinning. CPU 1
    > seems to be constantly running your v67 program (alternating with
    > posix_cpu_timer), and CPU: 0 is still switching with the swapper, along
    > with other tasks, so that this means nothing is just spinning and hogging
    > the CPU (on CPU 0, but I assume the v67 tasks is suppose to keep running).
    >
    > But, this could mean that something is blocked on a lock, or missed a
    > wakeup somewhere and we block X from responding. Although X is shown up,
    > but some signal to do an event my be prevented.
    >
    > I wonder if the fact that softirqs are running with preemption enabled, is
    > the problem here.
    >
    > Could you try the patch that Ingo sent here:
    >
    > http://marc.theaimsgroup.com/?l=linux-kernel&m=114741312301909&q=raw
    >
    > -- Steve
    >
    >

    If anything this made it worse. I actually got the freezes while just
    booting up the emulation. Once up, the same thing though.

    >Mark,
    >
    > as Ingo commented, this is a Hack! not a solution.

    Understood.

    Mark
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