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SubjectRe: [GIT PATCH] Driver Core patches for 2.6.18
Date
On Wednesday, 27 September 2006 10:47, Mike Galbraith wrote:
> On Tue, 2006-09-26 at 13:39 -0700, Greg KH wrote:
> > On Tue, Sep 26, 2006 at 12:34:05PM +0000, Mike Galbraith wrote:
> > > On Mon, 2006-09-25 at 22:37 -0700, Greg KH wrote:
> > > > Here are a bunch of driver core and sysfs patches and fixes for 2.6.18.
> > >
> > > Hi,
> > >
> > > Just as an fyi, these patches cause a ~regression on my P4/HT box.
> > >
> > > Suspend stopped here working after 2.6.17.
> >
> > Does 2.6.18 also have these problems?
>
> Suspend failure, yes, kill box on failure, no.
>
> > If so, it's not due to these patches :)
>
> The 'Mikie's box' killer is definitely somewhere in these patches. I
> decided to test them after having just happened to have tried
> 2.6.18-rc7-mm1 to see if it the mm tree had fixed my suspend problem for
> me, and then seeing your post. Since 2.6.18 with these patches went
> from ho-hum broke to ding-dong dead, I figured I should mention it.
>
> > > I haven't dug into why, but
> > > since then, I get a message "Class driver suspend failed for cpu0", and
> > > the suspend fails, but everything works fine afterward. If I ignore the
> > > return of drv->suspend(), the box will suspend and resume just fine,
> > > both with this patch set and without. (which is what I've been doing
> > > while waiting for it to fix itself or for my round toit to turn up)
> >
> > What driver is controling cpu0?
> > What driver is failing the suspend?
>
> Dunno, see below.
>
> > What line did you have to change?
>
> drivers/base/sys.c:409
>
> Adding a WARN_ON() there wasn't particularly illuminating. I enabled
> debugging (this is virgin 2.6.18), and get the following. I see a
> problem I didn't notice before, see 'Hmm' below. I have no idea if it
> has anything to do with box killer problem with patchset applied.

Please try to remove the acpi_cpufreq driver before the suspend.

If that works, please add your system configuration to the bugzilla entry at
http://bugzilla.kernel.org/show_bug.cgi?id=7188

Greetings,
Rafael


--
You never change things by fighting the existing reality.
R. Buckminster Fuller
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