On Wed, 2007-12-19 at 23:45 -0800, Greg KH wrote:

> > The normal X server is not recompiled to expect the RT kernel.
> 
> That's because it is not a kernel driver, yet :)

Of course. My mistake. 

> > Should there be similar issues with that as with the nvidia driver?
> 
> Yes there will be.
> 
> > Does this apply to vmware as well? 
> 
> Yes.
> 
> _ANY_ kernel module will have to be recompiled to work properly with the
> -rt kernel, just like any other kernel version we provide.

Sigh.. I need to make a second class of our own drivers.

> > > > Since I used YaST to install the nvidia driver, it
> > > > should get updated when there is a new kernel. I do not want to mess
> > > > that up to get it to work with the RT kernel variant. Should I just
> > > > re-install the nvidia driver when running the RT kernel? I guess the RT
> > > > kernel is a parallel kernel, not really a new kernel.
> > > 
> > > What do you mean "new kernel"?  It's just a different variant, one for a
> > > specific need.
> > 
> > If I get a kernel update, the YaST-based nvidia install claims that it
> > will magically keep the nvidia driver working with each update.
> 
> That's a pretty bold claim :)

Indeed. But the SUSE nvidia driver install docs claim this is the case.

> Anyway, as the nvidia driver is closed source, I really have no idea how
> it interacts with the kernel at all.   Heck, the fact that it even works
> for anyone is amazing to me...
> 
> > I do not need to take action. The RT kernel, I am guessing, is not
> > considered an update, which makes sense.
> 
> That's right, it is just another kernel "variant" like the -bigsmp
> kernel is.

So did the nvidia driver not get installed into the RT kernel on purpose
(it was not fully recompiled with -rt stuff) or by oversight? The end
result may be what you want. But it would be nice if it was for the
right reason.

-- 
Roger Oberholtzer

OPQ Systems / Ramböll RST

Ramböll Sverige AB
Kapellgränd 7
P.O. Box 4205
SE-102 65 Stockholm, Sweden

Office: Int +46 8-615 60 20
Mobile: Int +46 70-815 1696

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