Re: [2.6 patch] i386: always use 4k stacks

[Bill Davidsen]

Jeff V. Merkey wrote:
> Robert Hancock wrote:
>
> > Jeff V. Merkey wrote:
> >
> > > Why does the kernel need to be limited to 4K? for kernel preemption?
> >
> >
> >
> > No, because it makes a whole lot of things simpler and more reliable 
> > if the kernel stack is only one page.
> >
> > > Someone needs to fix this. It's busted. It makes porting code between 
> > > Windows and Linux and other OS's difficult to support.
> >
> >
> >
> > Ease of porting drivers written for other OSes to Linux is clearly not 
> > a high priority for the kernel community..
>
>
>
> What?  There's more kernel apps than just ndis network drivers that get 
> ported.  ndiswrapper is busted (which is used for a lot of laptops)
> without 4K stacks.  My laptop is a Compaq and there isn't a Linux driver 
> for the wireless.  I also discovered Fedora Core 4 won't install
> on a Compaq Presario with SATA (stacks crashes).
> What are you saying?   People with wireless and laptops who run Linux 
> can't because ndiswrapper is busted without 8K stacks?
>
> Should be a configurable option 4-16K -- set at RUN TIME on the COMMAND 
> LINE of the BOOT LOADER.   Peopl can set
> profile=? why not kernel default stack size.   That way Fedora, ES, AS, 
> and Suse can run out of the box on laptops like Windows,
> or is M$ going to keep owning the desktop?

Having stack size as a compile time value and having it as a runtime 
value are two totally different problems. I just don't see much benefit 
from making changing the size easy, when it is likely to be a VERY 
infrequent need at all.

--
   -bill davidsen (davidsen@xxxxxxx)
"The secret to procrastination is to put things off until the
 last possible moment - but no longer"  -me
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