Re: Patches for REALLY TINY 386 kernels

[Andi Kleen]

On Wed, Jul 18, 2007 at 08:29:27PM +0200, Jan Engelhardt wrote:
> 
> On Jul 18 2007 20:20, Andi Kleen wrote:
> >> 
> >> Well, how big the vmlinux file is matters if it doesn't fit in memory
> >> with enough time to get to the phase where it is dumping the init
> >> sections.  
> >
> >If you don't have enough memory for a few tens of KB of init sections
> >you're very unlikely to have enough memory for user space.
> 
> If the code was not too hackish, I would not buy that.
> Routers for example can run -- minus the userspace utilities required to set
> things up -- "without" userspace.

They still need memory for packets and other data structures. 
Without having enough memory to queue packets and keep the routing cache you cannot do 
any useful routing.

-Andi
-
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/