Re: [PATCH 2.6.14-rc1-git5] sched: disable preempt in idle tasks

From: Nigel Cunningham (ncunningham_at_cyclades.com)
Date: 10/07/05

  • Next message: Greg KH: "Re: Fwd: Telecom Clock Driver for MPCBL0010 ATCA computer blade" 
    To: Nick Piggin <nickpiggin@yahoo.com.au>
Date:	Fri, 07 Oct 2005 09:03:48 +1000

    Hi.

    On Thu, 2005-09-22 at 13:25, Nick Piggin wrote:
    > Andrew Morton wrote:
    > > Nick Piggin <nickpiggin@yahoo.com.au> wrote:
    > >
    > >>This patch should hopefully fix Nigel's bug.
    > >>
    > >> Split out from sched-resched-opt.patch. Tested on i386 with acpi idle
    > >> and poll idle (previous iterations tested on various other architectures).
    > >
    > >
    > > This makes the emt64 machine reboot itself, which iirc was the behaviour in
    > > the failing patch from which this one was split out.
    > >
    > > The machine is using acpi_processor_idle().
    > >
    >
    > OK, thanks. That must be the preempt_disable() being called in
    > start_secondary(). Maybe I should have listened to the comment.
    >
    > Can you try the following patch?

    Ok. Well I've fun with that patch for a couple of weeks and had no
    recurrences of the issue whatsoever - until I upgraded my kernel
    yesterday and forgot to apply it again. In short, it seems to fix the
    problem here.

    Regards,

    Nigel

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  • Next message: Greg KH: "Re: Fwd: Telecom Clock Driver for MPCBL0010 ATCA computer blade"

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