IPV4 as module?

IPV4 as module?

[Andrey Borzenkov]

Any technical reaon IPV4 cannot be built as module? Current kernel
barely fits on floopy (even with IDE as module); factoring out IPV4
would allow to reduce size even more.

TIA

-andrey

Re: IPV4 as module?

[Jan-Benedict Glaw]

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On Wed, 2004-02-04 23:06:10 +0300, Andrey Borzenkov <arvidjaar@mail.ru>
wrote in message <20040204200610.GB3802@localhost.localdomain>:
> Any technical reaon IPV4 cannot be built as module? Current kernel
> barely fits on floopy (even with IDE as module); factoring out IPV4
> would allow to reduce size even more.

Some hard work need to be done to do that, but why shouldn't a kernel
fit onto a floppy? My vmlinuz'es are at about 600 to 900 KB for i386 and
a floppy can handle nearly about twice that size...

MfG, JBG

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   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
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Re: IPV4 as module?

[Tomasz Kłoczko]

On Thu, 5 Feb 2004, Jan-Benedict Glaw wrote:

> On Wed, 2004-02-04 23:06:10 +0300, Andrey Borzenkov <arvidjaar@mail.ru>
> wrote in message <20040204200610.GB3802@localhost.localdomain>:
> > Any technical reaon IPV4 cannot be built as module? Current kernel
> > barely fits on floopy (even with IDE as module); factoring out IPV4
> > would allow to reduce size even more.
> 
> Some hard work need to be done to do that, but why shouldn't a kernel
> fit onto a floppy? My vmlinuz'es are at about 600 to 900 KB for i386 and
> a floppy can handle nearly about twice that size...

Better will be ask why you must recompile kernel for add ipv4 abilities
if you uses (olny) for example ipv6 stack ? :)

kloczek
PS. Many modern PCs wave now only CD drive .. one CD can fit much 
more than kernel image and all kernel modules. So step your quostion path 
it will be "much more correct" ask why the hell kernel is (still ?) 
modular (?) 8^>
-- 
-----------------------------------------------------------
*Ludzie nie mają problemów, tylko sobie sami je stwarzają*
-----------------------------------------------------------
Tomasz Kłoczko, sys adm @zie.pg.gda.pl|*e-mail: kloczek@rudy.mif.pg.gda.pl*

Re: IPV4 as module?

[Jan-Benedict Glaw]

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On Sun, 2004-02-08 03:14:20 +0100, Tomasz K?oczko <kloczek@rudy.mif.pg.gda.pl>
wrote in message <Pine.LNX.4.58L.0402080257060.29247@rudy.mif.pg.gda.pl>:
> On Thu, 5 Feb 2004, Jan-Benedict Glaw wrote:
> > On Wed, 2004-02-04 23:06:10 +0300, Andrey Borzenkov <arvidjaar@mail.ru>
> > wrote in message <20040204200610.GB3802@localhost.localdomain>:
> > > Any technical reaon IPV4 cannot be built as module? Current kernel
> > > barely fits on floopy (even with IDE as module); factoring out IPV4
> > > would allow to reduce size even more.
> > 
> > Some hard work need to be done to do that, but why shouldn't a kernel
> > fit onto a floppy? My vmlinuz'es are at about 600 to 900 KB for i386 and
> > a floppy can handle nearly about twice that size...
> 
> Better will be ask why you must recompile kernel for add ipv4 abilities
> if you uses (olny) for example ipv6 stack ? :)

That's the other way around :) Let's just omit legacy IPv4!

> PS. Many modern PCs wave now only CD drive .. one CD can fit much 
> more than kernel image and all kernel modules. So step your quostion path 
> it will be "much more correct" ask why the hell kernel is (still ?) 
> modular (?) 8^>

That's not all correct. You can fit 700 MB data on a CD-ROM, but booting
is still emulated from a 1.44 MB floppy (or some other floppy/HDD
images, but many BIOSses won't accept those (or handle them correctly)).

MfG, JBG

-- 
   Jan-Benedict Glaw       jbglaw@lug-owl.de    . +49-172-7608481
   "Eine Freie Meinung in  einem Freien Kopf    | Gegen Zensur | Gegen Krieg
    fuer einen Freien Staat voll Freier Bürger" | im Internet! |   im Irak!
   ret = do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TCPA));

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[-- Type: application/pgp-signature, Size: 189 bytes --]

Re: IPV4 as module?

[Tomasz Kłoczko]

On Sun, 8 Feb 2004, Jan-Benedict Glaw wrote:
[..]
> > PS. Many modern PCs wave now only CD drive .. one CD can fit much 
> > more than kernel image and all kernel modules. So step your quostion path 
> > it will be "much more correct" ask why the hell kernel is (still ?) 
> > modular (?) 8^>
> 
> That's not all correct. You can fit 700 MB data on a CD-ROM, but booting
> is still emulated from a 1.44 MB floppy (or some other floppy/HDD
> images, but many BIOSses won't accept those (or handle them correctly)).

Yes but you can also boot from from CD fron 2.88MB FD image and all this
can be allocated for kernel (+modules for initrd) and all rest CD space
can be allocated as root fs :)

kloczek
-- 
-----------------------------------------------------------
*Ludzie nie mają problemów, tylko sobie sami je stwarzają*
-----------------------------------------------------------
Tomasz Kłoczko, sys adm @zie.pg.gda.pl|*e-mail: kloczek@rudy.mif.pg.gda.pl*

Re: IPV4 as module?

[H. Peter Anvin]

Followup to:  <20040208212757.GW28571@lug-owl.de>
By author:    Jan-Benedict Glaw <jbglaw@lug-owl.de>
In newsgroup: linux.dev.kernel
> 
> That's not all correct. You can fit 700 MB data on a CD-ROM, but booting
> is still emulated from a 1.44 MB floppy (or some other floppy/HDD
> images, but many BIOSses won't accept those (or handle them correctly)).
> 

Baloney.  Most BIOSes support "no emulation" booting these days; in fact,
there are more that don't do floppy emulation correctly than the few very
old BIOSes which didn't do no emulation.

	-hpa
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Re: IPV4 as module?

[der.eremit]

On Fri, 13 Feb 2004 07:20:07 +0100, you wrote in linux.kernel:

>> That's not all correct. You can fit 700 MB data on a CD-ROM, but booting
>> is still emulated from a 1.44 MB floppy (or some other floppy/HDD
>> images, but many BIOSses won't accept those (or handle them correctly)).
> Baloney.  Most BIOSes support "no emulation" booting these days; in fact,
> there are more that don't do floppy emulation correctly than the few very
> old BIOSes which didn't do no emulation.

Even if wanting to support BIOSes that don't do "no emulation", all it
takes is simple initrd to locate and mount the iso9660 filesystem off the
real device - and that easily fits on a 2.88 MB floppy image used for
emulated floppy boot. Should also fit on an 1.44 MB image, although I've
not seen a BIOS yet that didn't like a 2.88 MB image on a CD.

-- 
Ciao,
Pascal

Re: IPV4 as module?

[Tomasz Kłoczko]

On Fri, 13 Feb 2004 der.eremit@email.de wrote:

> On Fri, 13 Feb 2004 07:20:07 +0100, you wrote in linux.kernel:
> 
> >> That's not all correct. You can fit 700 MB data on a CD-ROM, but booting
> >> is still emulated from a 1.44 MB floppy (or some other floppy/HDD
> >> images, but many BIOSses won't accept those (or handle them correctly)).
> > Baloney.  Most BIOSes support "no emulation" booting these days; in fact,
> > there are more that don't do floppy emulation correctly than the few very
> > old BIOSes which didn't do no emulation.
> 
> Even if wanting to support BIOSes that don't do "no emulation", all it
> takes is simple initrd to locate and mount the iso9660 filesystem off the
> real device - and that easily fits on a 2.88 MB floppy image used for
> emulated floppy boot. Should also fit on an 1.44 MB image, although I've
> not seen a BIOS yet that didn't like a 2.88 MB image on a CD.

But back to topic .. can someone say something more and detailed about
things which dissallow now separation IPV4 stack in module ?

kloczek
-- 
-----------------------------------------------------------
*Ludzie nie mają problemów, tylko sobie sami je stwarzają*
-----------------------------------------------------------
Tomasz Kłoczko, sys adm @zie.pg.gda.pl|*e-mail: kloczek@rudy.mif.pg.gda.pl*