Re: [Bug 14730] sky2 won't work after suspend/resume cycle

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On czwartek 10 grudzień 2009, Rafael J. Wysocki wrote:
> On Thursday 10 December 2009, Maciej J. Woloszyk wrote:
> > On czwartek 10 grudzień 2009, Rafael J. Wysocki wrote:
> > > On Thursday 10 December 2009, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
> > > > http://bugzilla.kernel.org/show_bug.cgi?id=14730
> > > >
> > > > --- Comment #11 from Ilya Hegai <vyacheslavovich@xxxxxxxxx> 
> > > > 2009-12-10 10:36:36 --- (In reply to comment #9)
> > > >
> > > > > On Monday 07 December 2009, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx 
wrote:
> > > > > > http://bugzilla.kernel.org/show_bug.cgi?id=14730
> > >
> > > ...
> > >
> > > > > It may be worth trying to revert
> > > > >
> > > > > commit 4b77b0a2ba27d64f58f16d8d4d48d8319dda36ff
> > > > > Author: Rafael J. Wysocki <rjw@xxxxxxx>
> > > > > Date:   Wed Sep 9 23:49:59 2009 +0200
> > > > >
> > > > >     PCI: Clear saved_state after the state has been restored
> > > > >
> > > > > and retesting.
> > > >
> > > > I'm not familiar with git, but I haven't found traces of that commit
> > > > in 2.6.31.7 that I'm using (gentoo-sources) (and the problem exists
> > > > there) but after I applied it (got it from git) - sky2 errors after
> > > > hibernation/resume dissapeared
> > > > And as I can see this patch has applied against 2.6.32, so I guess TS
> > > > person is considered to upgrade to the latest kernel
> > >
> > > Hmm.  The original report is against 2.6.32-rc8.
> > >
> > > So you're saying that the commit above, when applied against 2.6.31.7,
> > > actually fixes a sky2 resume problem for you?
> > >
> > > Maciej, can you please check if 2.6.31.7 with the above commit applied
> > >  works for you?
> >
> > Ok. I've just tried 2.6.31.7 with the patch applied - it didn't worked.
> > sky2 still does'nt work after resume.
> 
> So the problem is clearly different for you.  It also means it's not
>  universal for all sky2s, so it may depend on whether the adapter is PCIe
>  or something.
> 
> Can you please use 2.6.32 for further testing and do the following:
> 

Ok.

> # echo code > /sys/power/pm_test

I hope you ment it to  be "echo core" because if it actualy supposed to be 
"code" - it didn't worked ;)

> # echo mem > /sys/power/state
> 
> wait until it gets back to the command prompt and see if your sky2 works
> after that?
> 

Yes - after the second echo it did kind of suspend/resume cycle and after that 
sky2 still worked.
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