Re: [Linux-ia64] 2.5.45 with CONFIG_NUMA=y

Xavier Bru
2002-11-27T16:22:04Z

Hi Jesse
Thanks a lot for your answers.

Jesse Barnes writes:
> On Tue, Nov 26, 2002 at 06:54:36PM +0100, Xavier Bru wrote:
> >
> > Hi,
> >
> > Booting the 2.5.45 kernel on our numa platform, we hit 2 problems:
> >
> > . Current settings for DIG are : 512MB/bank, 16GB/node,(mmzone.h) but our
> > platform can support 64 GB/node (Even with less memory, bios maps
> > each node memory modulo 64GB).
> > As it has been cleanly coded :-), we just changed DIG_BANKSHIFT to 31
> > (2GB banks) and system runs.
> > Should these values bee incremented in the future ?
>
> Maybe that should be an option for the kernel configuration system?

This should be OK for us.

>
> > . We can't get X11 working (Xserver loops in user mode). Note that
> > it works OK with 2.5.45 without DISCONTIG_MEM set. Having a look to the
> > mappings in /proc/ and the XFree86 log, we saw no difference. Any idea
> > ?
>
> Does X initialize your card correctly? I know that scanning /dev/mem
> for video cards (which is what XFree86 does, IIRC) can be problematic on
> some platforms...

Seems that we use the VGA mode through /dev/mem (No driver is actually
loaded).
Are there some known problems with /dev/mem and DISCONTIG_MEM ?
Do you think we should have more chances validating Frame buffer support and the
card driver ? (I think platform has no AGP support).
>
> Jesse
Thanks again.
Xavier

--

Sincères salutations.
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