lkml.org 
[lkml]   [2007]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: clockevents: fix resume logic
On Tue, 11 Sep 2007 14:09:12 +0200 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:

> On Tuesday, 11 September 2007 13:22, Andrew Morton wrote:
> > On Tue, 11 Sep 2007 13:23:55 +0200 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> >
> > > On Tuesday, 11 September 2007 12:31, Andrew Morton wrote:
> > > > On Tue, 11 Sep 2007 11:16:04 +0200 Thomas Gleixner <tglx@linutronix.de> wrote:
> > > >
> > > > > On Tue, 2007-09-11 at 01:35 -0700, Andrew Morton wrote:
> > > > > > On Tue, 11 Sep 2007 01:20:05 -0700 Andrew Morton <akpm@linux-foundation.org> wrote:
> > > > > >
> > > > > > > On Tue, 11 Sep 2007 09:47:20 +0200 Thomas Gleixner <tglx@linutronix.de> wrote:
> > > > > > >
> > > > > > > > On Tue, 2007-09-11 at 09:23 +0200, Thomas Gleixner wrote:
> > > > > > > > > > I went back to the original patch which I sent to Linus and it matches
> > > > > > > > > > 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6. So all I can think is that there
> > > > > > > > > > must have been something else in the tree which I tested which fixed the
> > > > > > > > > > bug which 18de5bc4c1f1f1fa5e14f354a7603bd6e9d4e3b6 introduced. argh.
> > > > > > > > > >
> > > > > > > > > > Can you think what would cause the symptoms which I described?
> > > > > > > > >
> > > > > > > > > It seems that time is not updated. Timer interrupt not active or some
> > > > > > > > > other odd thing. I figure out what's going on when I find a box which
> > > > > > > > > exposes the problem.
> > > > > > >
> > > > > > > 2.6.22-rc6-mm1's git-acpi.patch contains something which fixes this bug.
> > > > > >
> > > > > > Len's current tree fixes it too.
> > >
> > > Do you mean this one:
> > >
> > > http://git.kernel.org/?p=linux/kernel/git/lenb/linux-acpi-2.6.git
> >
> > Nope.
> >
> > Here's the algorthm: go to the latest -mm tree and look at the first line
> > of broken-out/git-acpi.patch:
> >
> > GIT f94aac9883f9b02700270cf286577a9bccf98f47 git+ssh://master.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git#test
> >
> > that gives the URL, the branch and the top-level commit. All the -mm git
> > trees have that first line.
> >
> >
> >
> > Anyway, I was able to extract all the diffs and generate a patch series.
> > The below patch fixes current mainline on the Vaio.
>
> It evidently assumes cpuidle to be present, which is not in the mainline.

Bear in mind that the cpuidle patch fixes resume-from-ram when cpuidle is
disabled in config.

> It seems to me that the total effect of this one and the hackpatch is that
> the C states are not handled any more.

hm.

dmesg without the cpuidle patch: http://userweb.kernel.org/~akpm/dmesg-bad.txt
dmesg with the cpuidle patch: http://userweb.kernel.org/~akpm/dmesg-good.txt
difference: http://userweb.kernel.org/~akpm/dmesg-diff.txt

there doesn't seem to be a lot of difference in the time handling, except
there are large changes in when things happen in the bootup sequence.

-
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: 2007-09-11 20:29    [W:1.322 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site