4KSTACKS again

[Jerone Young]

I am also an NVIDIA user...eventually NVIDIA will
update there driver to work with the 4K stack (expect
it around the time Fedora 2 is actually fully
released). Actually the X86-64 Nvidia driver works
great with FC2 (with a few stability issues). But
really no one in the Open Source community has any
remorse for NVIDIA (or ATI). Really when it comes to
Device drivers there really is no excuse for your
drivers not be Open Source (my opinion). So I also do
understand what you are going through...but really the
people you should be yelling at is Nvidia..so please
go to the nvidia forum and file your complaint ( it is
at nvews.net). 

            Jerone 

--- Andy Ross <andy at plausible.org> wrote:
> This was posted last week, but didn't generate much
> in the way of
> official response.  Now that I've played with the
> issue some and feel
> I have a better understanding, I thought I'd try
> again:
> 
> FC2 kernels, since the early days of test1, have
> been compiled to use
> the "4KSTACKS" patch on i386 which limits kernel
> stacks to a single
> page.  This feature is incompatible with some
> proprietary kernel
> modules, most notably the NVidia (and, I am told but
> have not
> verified, ATI) graphics drivers.  Users of these
> modules have been
> forced to recompile their kernels after modifying
> the CONFIG_4KSTACKS
> setting.
> 
> But recent 2.6.5-x kernels have removed even that
> option, making it
> *impossible* for NVidia users to generate a working
> system from the
> kernel-source package.
> 
> Note that the official 2.6.5 kernel doesn't have the
> small stack
> feature at all, and works fine.  The kernel SRPM
> adds a patch ("mc1")
> which includes the 4KSTACKS features, and then
> another ("nostack")
> which inexplicably *removes* the configurability of
> the feature, thus
> hard-wiring (!) the kernel source to use 4K stacks.
> 
> So basically: Is this intentional?  Why?  I clearly
> understand
> (please, no flames on this point) that neither Red
> Hat nor the Fedora
> project are required to support proprietary
> software.  But this
> removal of the configuration setting is *gratuitous*
> incompatibility.
> What was the purpose?  Do you really intend to ship
> such a kernel in
> the official release?  Have you at least pinged
> NVidia (and ATI, if
> necessary) to see if they're willing or able to fix
> the issue prior to
> the FC2 release?
> 
> Honestly, shipping a (non-standard!) kernel feature
> which disallows
> accelerated 3D for a large fraction of users is
> going to be a
> disaster.  I work on the FlightGear project, and
> forcing our linux
> users to download and compile their own kernel from
> kernel.org is just
> not an option; they'll just get pushed off to other
> distributions.
> 
> Andy
> 
> 
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