Re: [2.6.22-rc1-mm1] vaio laptop (SZ72B) immediately resumes after STR

[Zhang Rui <rui.zhang@intel.com>]

On Tue, 2007-06-19 at 18:30 +0900, Mattia Dongili wrote:
> On Tue, Jun 19, 2007 at 04:57:55PM +0800, Zhang Rui wrote:
> > On Sun, 2007-05-20 at 15:14 +0900, Mattia Dongili wrote:
> > > On Sat, May 19, 2007 at 12:04:13AM -0700, Andrew Morton wrote:
> > > > On Sat, 19 May 2007 15:48:29 +0900 Mattia Dongili <malattia@linux.it> wrote:
> > > > 
> > > > > On Fri, May 18, 2007 at 12:22:40AM -0700, Andrew Morton wrote:
> > > > > > On Fri, 18 May 2007 16:15:24 +0900 Mattia Dongili <malattia@linux.it> wrote:
> > > > > > 
> > > > > > > Hello,
> > > > > > > 
> > > > > > > After finally catching fw-{ohci,core} to be problematic during resume,
> > > > > > > I'm now experiencing an immediate resume after suspending.
> > > > > > > 
> > > > > > > 2.6.21-rc7-mm* didn't even suspend, my last known suspend-and-resuming
> > > > > > > kernel was 2.6.21-rc5-mm3 (I know one other vaio SZ user could STR with
> > > > > > > 2.6.21-rc6-mm* after the cpuidle fixes).
> > > > > > > 
> > > > > > > my .config is: http://oioio.altervista.org/linux/config-2.6.22-rc1-mm1-1
> > > > > > > and a str cycle with PM_DEBUG=y:
> > > > > > > http://oioio.altervista.org/linux/dmesg-SRT-immediately-resumes.txt
> > > > > ...
> > > > > > > Any idea where to start from? (bisecting is ok, but it'll take some
> > > > > > > time...)
> > > > > > 
> > > > > > Bisecting isn't that bad ;) I'd pick git-acpi.patch as the starting point.
> > > > > 
> > > > > ok, git-acpi.patch is not the bad boy :)
> > > 
> > > but very very close:
> > > acpi-driver-model-flags-and-platform_enable_wake.patch
> > > 
> > Hi, Mattia,
> > 
> > I tested this patch on several platforms but can not reproduce the bug.
> > Could you please help me do a simple test please?
> > 
> > Any kernel release later than 2.6.22-rc1 is ok. You don't need to apply 
> > acpi-driver-model-flags-and-platform_enable_wake.patch.
> > 
> > Try to enable the wakeup GPE for all the USB devices first.
> > e.g. "#echo USB1 >/proc/acpi/wakeup" will enable GPE for USB1.
> > USB1      S3     disabled  pci:0000:00:1d.0
> > USB2      S3     disabled  pci:0000:00:1d.1
> > USB3      S3     disabled  pci:0000:00:1d.2
> > USB4      S3     disabled  pci:0000:00:1d.3
> > USB7      S3     disabled  pci:0000:00:1d.7
> > 
> > Try STR and check if it resumes immediately after suspend.
> > I think the same problem will happen without this patch.
> 
> ok, building right now.
> Anyway, I don't remember the details but ehci and uhci were already
> spotted as being part of the problem. See the rest of the thread
> starting here http://lkml.org/lkml/2007/5/20/223
> 
Yes, I've noticed this.

The above test is just to confirm that
acpi-driver-model-flags-and-platform_enable_wake.patch is not the root
cause of the problem.
Buggy drivers may cause this problem, but I can not debug further as I
can not reproduce this bug here.

> Anyway I'm currently on 22-rc4-mm1 and having problems (=not even
> suspending) but lack the necessary time to investigate/bisect
That's ok.
It would be great if you can verify the problem still exists,
i.e. try STR with this patch applied. :)

thanks,
Rui