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RE: [Xen-ia64-devel] Xen is now runnnig at Bull

To: "Tristan Gingold" <Tristan.Gingold@xxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-ia64-devel] Xen is now runnnig at Bull
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Wed, 7 Sep 2005 09:54:21 +0800
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Thread-topic: [Xen-ia64-devel] Xen is now runnnig at Bull
>From: Tristan Gingold
>Sent: Tuesday, September 06, 2005 8:08 PM
>this is my first message to this list.

Welcome! ;-)

>Today, I ran xen+xenlinux at Bull on a Tiger-2.
>I just had to slighly modify a gnttab.c:
>diff -r c8c09ba4d98a drivers/xen/core/gnttab.c
>--- a/drivers/xen/core/gnttab.c Thu Aug 25 22:58:08 2005
>+++ b/drivers/xen/core/gnttab.c Tue Sep  6 11:20:17 2005
>@@ -23,7 +23,7 @@
> #include <asm-xen/xen_proc.h>
> #include <asm-xen/linux-public/privcmd.h>
> #include <asm-xen/gnttab.h>
>-#include <asm-xen/synch_bitops.h>
>+#include <asm-xen/asm/synch_bitops.h>
> #if 1
> #define ASSERT(_p) \

This change is included in previous xeno patch made by John and me, for
bringing multiple domains back to the world. But seems Dan hasn't put it
into the xenlinux repository. Dan?

>Sorry, I was unable to create a changeset, hg tried to open this file:
>and I suppose it has been removed by a 'make clean'...

I'm not sure whether it's clean to do that, but you may copy .hgtags.d
from another repository if both have the same parent. I usually have one
copy cloned from xen-ia64-unstable.hg, and with another working copy
child of the former. When working copy failed like above reason, I can
retrieve from another one.

>I am now able to remotely log into the machine, but I didn't try to
>another domain.
>However, I am unable to use the vga console, nor to type keys through
>serial console (maybe I forgot to press some magic keys).

Currently vga console is disabled for xen0, to accommodate requirement
from xenU. xenU needs to register xen console as default tty, and thus
need disable CONFIG_VT. However in current stage, there's no individual
.config file for xen0 and xenU. So one xenlinux compiled out will be
used as both xen0 and xenU. If you want to enable vga console for xen0,
you have to compile twice by editing driver/char/Kconfig:
config VT
        bool "Virtual terminal" if EMBEDDED
        select INPUT
      >>default n if !VIOCONS (for xenU)
      >>default y if !VIOCONS (for xen0)

>I will try to run xen+xenlinux on our novascale machine.
>As it was already said, we are interested by using xen-vti.
Unfortunatly, it
>still doesn't work.  No output on the console.  We had had messages
with a
>previous version.  To be investigated.

Now we're in process of merging non-vti and vti code, and then sometimes
you may see instability. We're also looking at it now. ;-)

>Since Bull sells big SMP/NUMA machine (32 procs), we are interested in
>developement.  I will start to work on SMP soon.

Good news.


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