Re: Testing requested for the next version of GNU Mach

[Richard Braun]

On Tue, Mar 15, 2016 at 12:32:43AM +0100, Samuel Thibault wrote:
> 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.

That's what Linux does. It should be configurable though.

-- 
Richard Braun