lkml.org 
[lkml]   [2007]   [Oct]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [stable] [patch 09/12] Fix SMP poweroff hangs
    On Wed, Oct 10, 2007 at 01:21:18AM +0200, Thomas Gleixner wrote:
    >
    >
    > On Tue, 9 Oct 2007, Greg KH wrote:
    >
    > > On Tue, Oct 09, 2007 at 10:17:02AM -0500, Olof Johansson wrote:
    > > > On Mon, Oct 08, 2007 at 11:06:33AM -0700, Greg KH wrote:
    > > > > From: Mark Lord <lkml@rtr.ca>
    > > > >
    > > > > commit 4047727e5ae33f9b8d2b7766d1994ea6e5ec2991 from upstream
    > > > >
    > > > > We need to disable all CPUs other than the boot CPU (usually 0) before
    > > > > attempting to power-off modern SMP machines. This fixes the
    > > > > hang-on-poweroff issue on my MythTV SMP box, and also on Thomas Gleixner's
    > > > > new toybox.
    > > >
    > > > Paul Mackerras has reported crashes when rebooting some older ppc64
    > > > systems due to this patch.
    > > >
    > > > See http://ozlabs.org/pipermail/linuxppc-dev/2007-October/043969.html.
    > >
    > > Has anything been done in mainline to possibly fix this?
    > >
    > > If not, I think we'll leave it in, as it does solve a number of reported
    > > problems.
    >
    > Wrapping it into a #ifdef CONFIG_X86 would be sufficient.

    Ok, get that patch into Linus's tree and then I'll add it to -stable :)

    thanks,

    greg k-h
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-10-10 09:55    [from the cache]
    ©2003-2014 Jasper Spaans. Advertise on this site