Re: 2.6.25-rc7: Ugh.

[Mark Lord]

Mark Lord wrote:
> Pavel Machek wrote:
> > Hi!
> >
> > > > It is with great reluctance when I attempt moving my main "desktop"
> > > > over to a new kernel version -- because the USB subsystem seems to
> > > > break every single time.
> > > >
> > > > So today I tried 2.6.25-rc7 on it for the first time.
> > > > Not good.
> > > >
> > > > It boots, but just a simple suspend/resume (RAM) was enough to kill it.
> > > > It comes back on resume, with an X desktop again,
> > > > but with no USB functionality -- no mouse.
> > > >
> > > > The keyboard still works, so I dropped to a console and tried:
> > > >
> > > >   rmmod usbhid
> > > >   insmod usbhid
> > > >
> > > > And the console hung at 100% CPU on the insmod.
> > > > Back to 2.6.24.3 again, for now -- I've got work to do.
> > > >
> > > > The specs of this machine have been posted with great regularity
> > > > in the past, every new kernel revision it seems.   So here we go again:
> > > >
> > > > Dell Inspiron 9400 notebook, Intel Core2Duo T7400, 2GB SDRAM.
> > > ..
> > >
> > > Correction there:  3GB of RAM, not 2.
> >
> > 3GB of RAM can be a problem. Try iommu=soft. .. but in such case
> > rmmod/insmod of usbhid would not help...
> ..
>
> Booted with mem=2GB, and USB hung again on the first suspend/resume cycle.
..

And booting with iommu=soft is worse:  video comes back with bizarre timings
after suspend/resume -- totally unsynced display afterwards.

Cheers
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/