Re: [BUG] 2.6.18-rc1 broke resume from APM suspend on Latitude CPi

Re: [BUG] 2.6.18-rc1 broke resume from APM suspend on Latitude CPi

[Mikael Pettersson]

On Fri, 7 Jul 2006 21:47:37 +0000, Pavel Machek wrote:
>> Kernel 2.6.18-rc1 broke resume from APM suspend (to RAM)
>> on my old Dell Latitude CPi laptop. At resume the disk
>> spins up and the screen gets lit, but there is no response
>> to the keyboard, not even sysrq. All other system activity
>> also appears to be halted.
>> 
>> I did the obvious test of reverting apm.c to the 2.6.17
>> version and fixing up the fallout from the TIF_POLLING_NRFLAG
>> changes, but it made no difference. So the problem must be
>> somewhere else.
>
>driver model changes?
>
>Can you retry with minimum drivers loaded, init=/bin/bash?

Did that, no change.

Re: [BUG] 2.6.18-rc1 broke resume from APM suspend on Latitude CPi

[Pavel Machek]

On Sat 2006-07-08 15:38:57, Mikael Pettersson wrote:
> On Fri, 7 Jul 2006 21:47:37 +0000, Pavel Machek wrote:
> >> Kernel 2.6.18-rc1 broke resume from APM suspend (to RAM)
> >> on my old Dell Latitude CPi laptop. At resume the disk
> >> spins up and the screen gets lit, but there is no response
> >> to the keyboard, not even sysrq. All other system activity
> >> also appears to be halted.
> >> 
> >> I did the obvious test of reverting apm.c to the 2.6.17
> >> version and fixing up the fallout from the TIF_POLLING_NRFLAG
> >> changes, but it made no difference. So the problem must be
> >> somewhere else.
> >
> >driver model changes?
> >
> >Can you retry with minimum drivers loaded, init=/bin/bash?
> 
> Did that, no change.

Too bad... Quite a lot of driver model changes were merged in -rc1...

Can you remove device_*() calls from apm.c and see what happens?
(First do it on 2.6.17 to confirm apm still works without driver
model...)

									Pavel-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

[BUG] 2.6.18-rc1 broke resume from APM suspend on Latitude CPi

[Mikael Pettersson]

Kernel 2.6.18-rc1 broke resume from APM suspend (to RAM)
on my old Dell Latitude CPi laptop. At resume the disk
spins up and the screen gets lit, but there is no response
to the keyboard, not even sysrq. All other system activity
also appears to be halted.

I did the obvious test of reverting apm.c to the 2.6.17
version and fixing up the fallout from the TIF_POLLING_NRFLAG
changes, but it made no difference. So the problem must be
somewhere else.

/Mikael

Re: [BUG] 2.6.18-rc1 broke resume from APM suspend on Latitude CPi

[Pavel Machek]

Hi!

> Kernel 2.6.18-rc1 broke resume from APM suspend (to RAM)
> on my old Dell Latitude CPi laptop. At resume the disk
> spins up and the screen gets lit, but there is no response
> to the keyboard, not even sysrq. All other system activity
> also appears to be halted.
> 
> I did the obvious test of reverting apm.c to the 2.6.17
> version and fixing up the fallout from the TIF_POLLING_NRFLAG
> changes, but it made no difference. So the problem must be
> somewhere else.

driver model changes?

Can you retry with minimum drivers loaded, init=/bin/bash?

-- 
Thanks for all the (sleeping) penguins.