Xend cannot start

Xend cannot start

[ruozeng.w]

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Host OS: Ubuntu 8.04 server
XEN: 4.1.0
Kernel: 2.6.39-rc3

When xend is starting, it logged this:

/var/log/xen/xend-debug.log:

Xend started at Thu Apr 14 17:39:00 2011.
cat: /sys/bus/scsi/devices/host0/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host0/model: No such file or directory
cat: /sys/bus/scsi/devices/host0/type: No such file or directory
cat: /sys/bus/scsi/devices/host0/rev: No such file or directory
cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host1/model: No such file or directory
cat: /sys/bus/scsi/devices/host1/type: No such file or directory
cat: /sys/bus/scsi/devices/host1/rev: No such file or directory
cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host2/model: No such file or directory
cat: /sys/bus/scsi/devices/host2/type: No such file or directory
cat: /sys/bus/scsi/devices/host2/rev: No such file or directory
cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host3/model: No such file or directory
cat: /sys/bus/scsi/devices/host3/type: No such file or directory
cat: /sys/bus/scsi/devices/host3/rev: No such file or directory
cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host4/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host4/model: No such file or directory
cat: /sys/bus/scsi/devices/host4/type: No such file or directory
cat: /sys/bus/scsi/devices/host4/rev: No such file or directory
cat: /sys/bus/scsi/devices/host4/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/host5/vendor: No such file or directory
cat: /sys/bus/scsi/devices/host5/model: No such file or directory
cat: /sys/bus/scsi/devices/host5/type: No such file or directory
cat: /sys/bus/scsi/devices/host5/rev: No such file or directory
cat: /sys/bus/scsi/devices/host5/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/target2:0:0/vendor: No such file or directory
cat: /sys/bus/scsi/devices/target2:0:0/model: No such file or directory
cat: /sys/bus/scsi/devices/target2:0:0/type: No such file or directory
cat: /sys/bus/scsi/devices/target2:0:0/rev: No such file or directory
cat: /sys/bus/scsi/devices/target2:0:0/scsi_level: No such file or directory
cat: /sys/bus/scsi/devices/target3:0:0/vendor: No such file or directory
cat: /sys/bus/scsi/devices/target3:0:0/model: No such file or directory
cat: /sys/bus/scsi/devices/target3:0:0/type: No such file or directory
cat: /sys/bus/scsi/devices/target3:0:0/rev: No such file or directory
cat: /sys/bus/scsi/devices/target3:0:0/scsi_level: No such file or directory

Someone said that it is because the kernel option CONFIG_XEN_DEV_EVTCHN should be set as 'y' but not 'm', so I checked my linux kernel configuration, and found it is set as 'y'.

I can find /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/vendor, or /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/scsi_device/0:0:0:0/device/vendor, but definitely no  /sys/bus/scsi/devices/host0/vendor

Why this happen? And how can I fix this?

Thanks.


2011-04-18 



Wishes
Ruozeng W 

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_______________________________________________
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Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Re: Xend cannot start

[Pasi Kärkkäinen]

On Mon, Apr 18, 2011 at 04:25:23PM +0800, ruozeng.w wrote:
>    Host OS: Ubuntu 8.04 server
>    XEN: 4.1.0
>    Kernel: 2.6.39-rc3
> 
>    When xend is starting, it logged this:
> 

Hello,

Did you check: http://wiki.xen.org/xenwiki/XenCommonProblems#head-26434581604cc8357d9762aaaf040e8d87b37752

-- Pasi

>    /var/log/xen/xend-debug.log:
> 
>    Xend started at Thu Apr 14 17:39:00 2011.
>    cat: /sys/bus/scsi/devices/host0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/scsi_level: No such file or directory
> 
>    Someone said that it is because the kernel option CONFIG_XEN_DEV_EVTCHN
>    should be set as 'y' but not 'm', so I checked my linux kernel
>    configuration, and found it is set as 'y'.
> 
>    I can find /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/vendor, or
>    /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/scsi_device/0:0:0:0/device/vendor,
>    but definitely no  /sys/bus/scsi/devices/host0/vendor
> 
>    Why this happen? And how can I fix this?
> 
>    Thanks.
> 
> 
>    2011-04-18
> 
>    --------------------------------------------------------------------------
> 
>    Wishes
>    Ruozeng W

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: Re: Xend cannot start

[ruozeng.w]

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Hi,
Yes, I've did this
echo "none /proc/xen xenfs defaults 0 0">>/etc/fstab
to add xenfs mount entry just after I installed xen¡£

Actually I was following this XenParavirtOps direction here:
http://wiki.xensource.com/xenwiki/XenParavirtOps to install and configure xen 4.1.0 with kernel 2.6.39

I did all of those checks:

# cat /proc/misc
¡­¡­
60 xen/gntalloc
61 xen/gntdev
62 xen/evtchn
¡­¡­

#ls -la /dev/xen
total 0
drwxr-xr-x  2 root root    100 2011-04-18 20:36 .
drwxr-xr-x 12 root root  13780 2011-04-18 20:36 ..
crw-rw----  1 root root 10, 62 2011-04-18 20:36 evtchn
crw-rw----  1 root root 10, 60 2011-04-18 20:36 gntalloc
crw-rw----  1 root root 10, 61 2011-04-18 20:36 gntdev

But "lsmod | grep -i xen" shows nothing, and I was told that "module xen_gntdev/xen_evtchn not found" when I try to load these modules by "modprobe xen-gntdev/xen-evtchn".


2011-04-18 



Wishes
Ruozeng W 



·¢¼þÈË£º Pasi Kärkkäinen 
·¢ËÍʱ¼ä£º 2011-04-18  19:00:03 
ÊÕ¼þÈË£º ruozeng.w 
³­ËÍ£º xen-devel 
Ö÷Ì⣺ Re: [Xen-devel] Xend cannot start 
 
On Mon, Apr 18, 2011 at 04:25:23PM +0800, ruozeng.w wrote:
>    Host OS: Ubuntu 8.04 server
>    XEN: 4.1.0
>    Kernel: 2.6.39-rc3
> 
>    When xend is starting, it logged this:
> 
Hello,
Did you check: http://wiki.xen.org/xenwiki/XenCommonProblems#head-26434581604cc8357d9762aaaf040e8d87b37752
-- Pasi
>    /var/log/xen/xend-debug.log:
> 
>    Xend started at Thu Apr 14 17:39:00 2011.
>    cat: /sys/bus/scsi/devices/host0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/scsi_level: No such file or directory
> 
>    Someone said that it is because the kernel option CONFIG_XEN_DEV_EVTCHN
>    should be set as 'y' but not 'm', so I checked my linux kernel
>    configuration, and found it is set as 'y'.
> 
>    I can find /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/vendor, or
>    /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/scsi_device/0:0:0:0/device/vendor,
>    but definitely no  /sys/bus/scsi/devices/host0/vendor
> 
>    Why this happen? And how can I fix this?
> 
>    Thanks.
> 
> 
>    2011-04-18
> 
>    --------------------------------------------------------------------------
> 
>    Wishes
>    Ruozeng W
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

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Re: Re: Xend cannot start

[ruozeng.w]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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I also  found that when "make modules_install" executed, it didn't install any module under /drivers/xen/, but I don't know why.

In the kernel .config file, I can't find some item the Pv_ops direction mentioned, such as CONFIG_XEN_PCI, CONFIG_XEN_KBDDEV_FRONTEND, CONFIG_XEN_BLKDEV_BACKEND, and can't find the definition of these options(grep returns nothing), so I think they might be cancelled in new 2.6.39 kernel.



2011-04-18 



Wishes
Ruozeng W 



·¢¼þÈË£º Pasi Kärkkäinen 
·¢ËÍʱ¼ä£º 2011-04-18  19:00:03 
ÊÕ¼þÈË£º ruozeng.w 
³­ËÍ£º xen-devel 
Ö÷Ì⣺ Re: [Xen-devel] Xend cannot start 
 
On Mon, Apr 18, 2011 at 04:25:23PM +0800, ruozeng.w wrote:
>    Host OS: Ubuntu 8.04 server
>    XEN: 4.1.0
>    Kernel: 2.6.39-rc3
> 
>    When xend is starting, it logged this:
> 
Hello,
Did you check: http://wiki.xen.org/xenwiki/XenCommonProblems#head-26434581604cc8357d9762aaaf040e8d87b37752
-- Pasi
>    /var/log/xen/xend-debug.log:
> 
>    Xend started at Thu Apr 14 17:39:00 2011.
>    cat: /sys/bus/scsi/devices/host0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host0/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host1/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host2/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host3/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host4/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/model: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/type: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/host5/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/target2:0:0/scsi_level: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/vendor: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/model: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/type: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/rev: No such file or directory
>    cat: /sys/bus/scsi/devices/target3:0:0/scsi_level: No such file or directory
> 
>    Someone said that it is because the kernel option CONFIG_XEN_DEV_EVTCHN
>    should be set as 'y' but not 'm', so I checked my linux kernel
>    configuration, and found it is set as 'y'.
> 
>    I can find /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/vendor, or
>    /sys/bus/scsi/devices/host0/target0:0:0:0/0:0:0:0/scsi_device/0:0:0:0/device/vendor,
>    but definitely no  /sys/bus/scsi/devices/host0/vendor
> 
>    Why this happen? And how can I fix this?
> 
>    Thanks.
> 
> 
>    2011-04-18
> 
>    --------------------------------------------------------------------------
> 
>    Wishes
>    Ruozeng W
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

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Re: Re: Xend cannot start

[Konrad Rzeszutek Wilk]

On Mon, Apr 18, 2011 at 11:48:19PM +0800, ruozeng.w wrote:
> I also  found that when "make modules_install" executed, it didn't install any module under /drivers/xen/, but I don't know why.
> 
> In the kernel .config file, I can't find some item the Pv_ops direction mentioned, such as CONFIG_XEN_PCI, CONFIG_XEN_KBDDEV_FRONTEND, CONFIG_XEN_BLKDEV_BACKEND, and can't find the definition of these options(grep returns nothing), so I think they might be cancelled in new 2.6.39 kernel.

Where did you get the 2.6.39 kernel from?

Did you turn on CONFIG_PARAVIRT=y

Re: Re: Re: Xend cannot start

[ruozeng.w]

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I got the 2.6.39-rc3 kernel full source from http://www.kernel.org.
And CONFIG_PARAVIRT is turned on.

Here is the steps I configure the kernel:
1. Processor type and features
High Memory Support--->
64GB
(Then I can see PAE and some xen related options)

2. Processor type and features
--- Paravirtualized guest support--->
[*]Xen guest support

3. Device Drivers
Xen Driver Support--->
(All turned on by default)

4. Device Drivers
Metwork device support--->
<*> Xen network device frontend driver
<*> Xen backend network device

5. Bus options
<*>Xen PCI Frontend 




011-04-19 



Wishes
Ruozeng W 



·¢¼þÈË£º Konrad Rzeszutek Wilk 
·¢ËÍʱ¼ä£º 2011-04-19  00:40:18 
ÊÕ¼þÈË£º ruozeng.w 
³­ËÍ£º Pasi Kärkkäinen; xen-devel 
Ö÷Ì⣺ Re: Re: [Xen-devel] Xend cannot start 
 
On Mon, Apr 18, 2011 at 11:48:19PM +0800, ruozeng.w wrote:
> I also  found that when "make modules_install" executed, it didn't install any module under /drivers/xen/, but I don't know why.
> 
> In the kernel .config file, I can't find some item the Pv_ops direction mentioned, such as CONFIG_XEN_PCI, CONFIG_XEN_KBDDEV_FRONTEND, CONFIG_XEN_BLKDEV_BACKEND, and can't find the definition of these options(grep returns nothing), so I think they might be cancelled in new 2.6.39 kernel.
Where did you get the 2.6.39 kernel from?
Did you turn on CONFIG_PARAVIRT=y

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Re: Re: Re: Xend cannot start

[Konrad Rzeszutek Wilk]

On Tue, Apr 19, 2011 at 10:56:25AM +0800, ruozeng.w wrote:
> I got the 2.6.39-rc3 kernel full source from http://www.kernel.org.

The 2.6.39-rc3 does not have the blkback driver in. There is a version

git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git #master

that has that one.
> And CONFIG_PARAVIRT is turned on.

Ok, so that is there.
> 
> Here is the steps I configure the kernel:
> 1. Processor type and features
> High Memory Support--->
> 64GB
> (Then I can see PAE and some xen related options)

OK, so you have the right version of Dom0. What about the version of
Xen-unstable? Are you compiling it from scratch?

Re: Re: Re: Xend cannot start

[ruozeng.w]

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I've found some mistakes in my configuration of the linux kernel, and I can load those modules(xen-gntdev, xen-gntalloc, xen-evtchn) now.
And I've fixed the problem of missing scsi devices under /sys/bus/scsi/devices/ directory. I learned that /etc/init.d/xencommons should be started before starting xend.

I'll try to create new pv guests next step.
Thank you for your help.

One more question: 
Does missing block device backend driver cause any problem?


2011-04-21 



Wishes
Ruozeng W 



发件人： Konrad Rzeszutek Wilk 
发送时间： 2011-04-19  21:33:45 
收件人： ruozeng.w 
抄送： xen-devel 
主题： Re: Re: Re: [Xen-devel] Xend cannot start 
 
On Tue, Apr 19, 2011 at 10:56:25AM +0800, ruozeng.w wrote:
> I got the 2.6.39-rc3 kernel full source from http://www.kernel.org.
The 2.6.39-rc3 does not have the blkback driver in. There is a version
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git #master
that has that one.
> And CONFIG_PARAVIRT is turned on.
Ok, so that is there.
> 
> Here is the steps I configure the kernel:
> 1. Processor type and features
> High Memory Support--->
> 64GB
> (Then I can see PAE and some xen related options)
OK, so you have the right version of Dom0. What about the version of
Xen-unstable? Are you compiling it from scratch?

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