[PlanetCCRMA] 4K Page sizes and wireless problems with Planet kernels

Fernando Lopez-Lezcano nando@ccrma.Stanford.EDU
Fri Nov 19 15:02:01 2004

On Thu, 2004-11-18 at 18:06, Mark Knecht wrote:
> Fernando,
>    I think I ran into a problem Timo was alluding to in a different
> email thread. Info is here:
> http://ndiswrapper.sourceforge.net/wiki/index.php/Distributions

I'm currently keeping the Fedora choice for 4K stacks. Obviously the
kernel could be rebuilt for 8K stacks (I was not aware there was a 16K

If you are getting weird crashes this could be the reason. 

The 4K stacks have an advantage in loading speed and general memory
usage of the kernel, as far as I can remember from posts I read a while

-- Fernando

> <SNIP>
> RedHat/Fedora
>     Recent 2.6 kernels have an option to enable/disable 4k stack size.
> However, Fedora kernels disable this option altogether and use 4K
> stack size, which is not enough for some windows drivers.
> Consequently, if you use Fedora 2.6 kernel, ndiswrapper will most
> likely crash. If you want to use Fedora kernel, get 16K stack kernel
> or patch from Linuxant
> http://www.linuxant.com/driverloader/wlan/full/downloads-fc2-kernel-i686.php
> for i686 or http://www.linuxant.com/driverloader/wlan/full/downloads-fc2-kernel-i586.php
> for i586. Alternately, you can compile a vanilla kernel (from
> http://www.kernel.org) and disable 4K stack size (CONFIG_4KSTACKS).
> <SNIP>
> I'm using the newest ndiswrapper stuff with a Planet kernel and things
> are crashing. I have no way of knowing if this is the cause, but it
> seems like I'm tempting fate.
> I wondered if you had any opinions about whether changing the stack
> size as they talk about here is a good/bad idea? Have you tried this
> before? Might you be considering a change like this in a PlanetEdge
> kernel at some future time?