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Re: Testing requested for the next version of GNU Mach

From: Samuel Thibault
Subject: Re: Testing requested for the next version of GNU Mach
Date: Tue, 15 Mar 2016 00:32:43 +0100
User-agent: Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30)

Richard Braun, on Mon 14 Mar 2016 23:37:33 +0100, wrote:
> On Mon, Mar 14, 2016 at 06:27:24PM -0400, David Michael wrote:
> > After poking around a bit more, it seems that the space is eaten by
> > debug info.  Appending -g0 to CFLAGS allowed gnumach to boot
> > successfully and resulted in this:
> > 
> > vm_page: DMA: pages: 4080 (15M), free: 2053 (8M)
> > 
> > The difference may be because GRUB apparently passes the multiboot ELF
> > info, while QEMU does not.  I'll just make sure to disable debug flags
> > when building gnumach for the time being.
> Yes that makes sense.

Uh.  Should we perhaps move the kernel out of the 16MiB area?  I don't
think we have any such requirement here, AIUI we are just putting it
where it poses the least fragmentation issues, but the scarse DMA
resource is even more important.


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