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From: Michael Schmitz <schmitzmic@googlemail.com>
To: Thorsten Glaser <tg@debian.org>
Cc: linux-m68k@vger.kernel.org
Subject: Re: Atari TT (next)
Date: Sun, 29 Jan 2012 09:33:21 +1300	[thread overview]
Message-ID: <4F245B91.60101@gmail.com> (raw)
In-Reply-To: <loom.20120127T175834-143@post.gmane.org>

Hi Thorsten,
>>> No, the kernel is too big. I've only got 4MB ST-RAM. And getting more on
> The guys at the Atari booth at OpenRheinRuhr had the same problem,
> they also had a 4/4 MiB split.
OK, worth fixing in this case.

Considering the kernel may fit into the first 4 MB, how much room does 
that leave for RAM allocated through stram_alloc?
Do we need to set aside some RAM right at the end of the kernel code 
segment for things like atafb (like we used to do in 2.2 or thereabouts)?
>> You may have to pare the kernel down to the bare minimum (i.e.
>> modularize about everything you don't need to boot to initrd). Not
>> sure where the limit for this is these days.
> Note that the Debian kernel does not use initrd to boot (to the
> finally installed system), especially as those tools are built
> with klibc, which is currently still broken on m68k, and thus
I wasn't aware of that.
> contains everything needed to get into an ext3fs / from disc,
> and then some. I don’t think you should be using a distro kernel
> made under such constraints (nor should the distro kernel be
> stripped more down considering the problems; I think there may
> even be flavours that don’t _support_ initrd, outside the image
> that is) but compile a stripped-down one yourself.
That's what I was suggesting - a stripped down kernel tailored to the TT 
could then
be 'distributed' (like you do with other stuff from your people.d.o 
page) to those
that need it.

Not that a total of 8 MB RAM would be a lot of fun to run today's kernel 
and userland on.

Cheers,

   Michael

  reply	other threads:[~2012-01-28 20:33 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-07  1:27 Atari TT (next) Alan Hourihane
2012-01-07  6:47 ` Michael Schmitz
2012-01-07 16:59   ` Alan Hourihane
2012-01-08  0:46   ` Alan Hourihane
2012-01-08  4:13     ` Michael Schmitz
2012-01-08  9:35       ` Andreas Schwab
2012-01-08  9:42       ` Alan Hourihane
2012-01-08 23:51         ` Michael Schmitz
2012-01-08 23:59           ` Alan Hourihane
2012-01-09  0:05             ` Michael Schmitz
2012-01-09  0:14               ` Alan Hourihane
2012-01-09  0:23               ` Andreas Schwab
2012-01-09  3:17                 ` Michael Schmitz
2012-01-09  1:03               ` Alan Hourihane
2012-01-09  1:25                 ` Alan Hourihane
2012-01-09 10:40                   ` Andreas Schwab
2012-01-09 11:22                     ` Alan Hourihane
2012-01-09 12:14                     ` Geert Uytterhoeven
2012-01-09 12:40                       ` Tuomas Vainikka
2012-01-09 14:10                       ` [PATCH] m68k: fix assembler constraint to prevent overeager gcc optimisation Andreas Schwab
2012-01-22 10:15                         ` Geert Uytterhoeven
2012-01-22 10:53                           ` Geert Uytterhoeven
2012-01-22 12:42                           ` Andreas Schwab
2012-01-09  3:16                 ` Atari TT (next) Michael Schmitz
2012-01-27 17:01           ` Thorsten Glaser
2012-01-28 20:33             ` Michael Schmitz [this message]
2012-01-29  0:57               ` Thorsten Glaser
2012-01-29  9:42                 ` Geert Uytterhoeven
2012-01-29 19:55                   ` Thorsten Glaser
2012-01-29 21:56                     ` Geert Uytterhoeven
2012-01-08 10:20       ` Geert Uytterhoeven
2012-01-08 19:21         ` Michael Schmitz
2012-01-08 19:53           ` Geert Uytterhoeven
2012-01-08 23:42             ` Michael Schmitz
2012-01-08 22:05           ` Andreas Schwab
2012-01-08 23:39             ` Michael Schmitz
2012-01-08 23:49               ` Alan Hourihane
2012-01-08 23:58                 ` Michael Schmitz
2012-01-08 13:36 ` Andreas Schwab
2012-01-08 14:42   ` Alan Hourihane
2012-01-08 19:24   ` Michael Schmitz
2012-01-08 17:45 ` Geert Uytterhoeven
2012-01-08 19:50   ` Alan Hourihane

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