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List: xen-devel
Subject: RE: RE: [Xen-devel] failed in debugging Xen hypervisor with gdb stub
From: Caz Yokoyama <cazyokoyama () gmail ! com>
Date: 2009-08-30 14:05:54
Message-ID: 852D29B78F984C3191276DEBED58140C () xpjpn
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Hello Kyle,
No, I don’t think the debugging process is no so much different on 3.2.0
and unstable. However, I have never installed 3.2.0. I installed 3.4.1 and
unstable which is 3.5. Therefore, I can’t say something sure for 3.2.0.
Are you able to install 3.4.1 to know how to set up gdb and xen?
-caz
_____
From: kyle.ma83 [mailto:kyle.ma83@gmail.com]
Sent: Sunday, August 30, 2009 6:29 AM
To: Caz Yokoyama
Subject: Re: RE: [Xen-devel] failed in debugging Xen hypervisor with gdb
stub of xen
Thanks for your reply.Caz .
I modified Xen based on xen-3.2.0, so I think I could not change into
unstable. Is the debugging process very different between 3.2.0 and
unstable?
Could you please show me the details about the debugging method of unstable
tree ? I am really confused after woking so long and much on the
debugging. ):
Thanks a lot.
2009-08-30
_____
kyle.ma83
_____
发件人： Caz Yokoyama
发送时间： 2009-08-30 20:40:09
收件人： 'kyle.ma83'
抄送： 'xen-devel'
主题： RE: [Xen-devel] failed in debugging Xen hypervisor with gdb stub of
xen
Hello Kyle,
Do you have to use xen-3.2.0? Are you able to use xen-unstable? A couple of
weeks ago, xen-unstable is able to accept break point, step and continue
command. If you can use xen-unstable, I can guide you to set up for
debugging Xen include those commands.
-caz
_____
From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel-bounces@lists.
xensource.com] On Behalf Of kyle.ma83
Sent: Saturday, August 29, 2009 11:36 PM
To: xen-devel
Subject: [Xen-devel] failed in debugging Xen hypervisor with gdb stub of xen
Hi,everyone
I recently want to debug Xen, and I just follow the
xen-3.2/docs/misc/crashdb.txt. I use two machines (one linux host and one
xen target)and can get the
xen booting message with serial to a remote linux host,I set debug=y in
Config.mk and set crash_debug=y in xen/Rules.mk when make install xen and
arrange to pass gdb=com1 as a hypervisor command line argument, my grub is
as followed:
title xen-3.2.0
root (hd0,0)
kernel /boot/xen-3.2.0.gz hap com1=115200,8n1 console=com1,vga
gdb=com1 sync_console
module /boot/vmlinuz-2.6.18.8-xen root=/dev/sda1 ro xencons=ttyS0
module /boot/initrd.img-2.6.18.8-xen
savedefault
I get the output infomation of Xen and Domain0, but the crashdb.txt says
give the escape character (^A by default) three times to talk to Xen (Xen
prints `(XEN) *** Serial input -> Xen...'), so I follow the instrucions.
When I
press ctrl-A three times as soon as I see:
(XEN) **********************************************
(XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS
(XEN) ******* This option is intended to aid debugging of Xen by ensuring
(XEN) ******* that all output is synchronously delivered on the serial line.
(XEN) ******* However it can introduce SIGNIFICANT latencies and affect
(XEN) ******* timekeeping. It is NOT recommended for production use!
(XEN) **********************************************
(XEN) 3... 2... 1...
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
Xen)
(XEN) unpasue dom0
(XEN) Freed 92kB init memory.
but nothing happened, there is no infomation like "waiting for GDB
attached...." or something else,
and at last get the "login as: " info , did I miss something or what should
I do?
Could anyone give some more details and suggestions about it or how to debug
Xen ? I 'd appreciated it much.
Thanks a lot.
2009-08-30
_____
Kyle Ma
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<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Hello \
Kyle,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>No, I don’t think the
debugging process is no so much different on 3.2.0 and unstable. However, I
have never installed 3.2.0. I installed 3.4.1 and unstable which is 3.5.
Therefore, I can’t say something sure for 3.2.0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Are you able to install
3.4.1 to know how to set up gdb and xen?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>-caz<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal align=left style='text-align:left'><b><font size=2
face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma;
font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma'> kyle.ma83
[mailto:kyle.ma83@gmail.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, August 30, 2009 6:29
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Caz Yokoyama<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: RE: [Xen-devel]
failed in debugging Xen hypervisor with gdb stub of xen</span></font><font
size=3 face=SimSun><span lang=EN-US \
style='font-size:12.0pt;font-family:SimSun'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face="Times New Roman"><span lang=EN-US \
style='font-size:10.5pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2 color=navy
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;
color:navy'>Thanks for your reply.</span></font><font size=2 color=black
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana;
color:black'>Caz .</span></font><font size=2 face=Verdana><span lang=EN-US
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'>I
modified Xen based on xen-3.2.0, so I think I could not change into unstable.
Is the debugging process very different between 3.2.0 and \
unstable?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'>Could
you please show me the details about the debugging method of unstable tree
? I am really confused after woking so long and much on the \
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'>debugging.
):<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'>Thanks
a lot.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
color=silver face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:
Verdana;color:silver'>2009-08-30 </span></font><font size=2 face=Verdana><span
lang=EN-US style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
</div>
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color=navy face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:
Verdana;color:navy'>
<hr size=2 width=122 style='width:91.5pt' align=left>
</span></font></div>
<div>
<p class=MsoNormal align=left style='text-align:left'><font size=2
color=silver face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:
Verdana;color:silver'>kyle.ma83 </span></font><font size=2 face=Verdana><span
lang=EN-US style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
</div>
<div class=MsoNormal align=center style='text-align:center'><font size=2
color=navy face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:
Verdana;color:navy'>
<hr size=2 width="100%" align=center>
</span></font></div>
<div>
<p class=MsoNormal align=left style='text-align:left'><strong><b><font size=2
face=SimSun><span lang=ZH-CN \
style='font-size:10.0pt;font-family:SimSun'>发件人：</span></font></b></strong><font \
size=2 face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'> \
Caz Yokoyama <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><strong><b><font size=2
face=SimSun><span lang=ZH-CN \
style='font-size:10.0pt;font-family:SimSun'>发送时间：</span></font></b></strong><font
size=2 face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'>
2009-08-30 20:40:09 <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><strong><b><font size=2
face=SimSun><span lang=ZH-CN \
style='font-size:10.0pt;font-family:SimSun'>收件人：</span></font></b></strong><font \
size=2 face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'> \
'kyle.ma83' <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><strong><b><font size=2
face=SimSun><span lang=ZH-CN \
style='font-size:10.0pt;font-family:SimSun'>抄送：</span></font></b></strong><font \
size=2 face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'> \
'xen-devel' <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal align=left style='text-align:left'><strong><b><font size=2
face=SimSun><span lang=ZH-CN \
style='font-size:10.0pt;font-family:SimSun'>主题：</span></font></b></strong><font \
size=2 face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'>
RE: [Xen-devel] failed in debugging Xen hypervisor with gdb stub of xen \
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Hello \
Kyle,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Do you have to use \
</span></font><font size=2 face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'>xen-3.2.0? Are you able to use \
xen-unstable? A couple of weeks ago, xen-unstable is able to accept break point, step \
and continue command. If you can use xen-unstable, I can guide you to set up for \
debugging Xen include those commands.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>-caz</span></font><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
xen-devel-bounces@lists.xensource.com [mailto:xen-devel-bounces@lists.xensource.com]
<b><span style='font-weight:bold'>On Behalf Of </span></b>kyle.ma83<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, August 29, 2009
11:36 PM<br>
<b><span style='font-weight:bold'>To:</span></b> xen-devel<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Xen-devel] failed in
debugging Xen hypervisor with gdb stub of xen</span></font><span \
lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-US
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>Hi,everyone<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>I recently want to debug Xen, and I just follow the
xen-3.2/docs/misc/crashdb.txt. I use two machines (one linux host and one xen
target)and can get the <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>xen booting message with serial to a remote linux
host,I set debug=y in Config.mk and
set crash_debug=y in xen/Rules.mk when make install xen and
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>arrange to pass gdb=com1 as a hypervisor command line argument,
my grub is as followed:<o:p></o:p></span></font></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>title xen-3.2.0<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>root (hd0,0)<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>kernel &nbs \
p; /boot/xen-3.2.0.gz hap com1=115200,8n1 console=com1,vga gdb=com1 sync_console<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>module &nbs \
p; /boot/vmlinuz-2.6.18.8-xen root=/dev/sda1 ro xencons=ttyS0<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>module /boot/initrd.img-2.6.18.8-xen<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>savedefault<o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>I get the output infomation of Xen and Domain0, but
the crashdb.txt says <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>give the escape character (^A by default) three times
to talk to Xen (Xen prints `(XEN) *** Serial input -> Xen...'),
so I follow the instrucions. When I <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>press ctrl-A three times as soon as I \
see:<o:p></o:p></span></font></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) **********************************************<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) ******* This option is inte \
nded to aid debugging of Xen by ensuring<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) ******* that all output is& \
nbsp;synchronously delivered on the serial line.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) ******* However it can intr \
oduce SIGNIFICANT latencies and affect<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) ******* timekeeping. It is \
NOT recommended for production use!<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) **********************************************<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) 3... 2... 1... <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) Xen is relinquishing VGA console.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) *** Serial input -> DOM0 \
(type 'CTRL-a' three times to switch input to Xen)<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) unpasue dom0<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>(XEN) Freed 92kB init memory.<o:p></o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>but nothing happened, there is no infomation like
"waiting for GDB attached...." or something \
else,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> and at last get the "login
as: " info , did I miss something or what should I \
do?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>Could anyone give some more details and suggestions
about it or how to debug Xen ? I 'd appreciated it much. \
<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Verdana><span lang=EN-US style='font-size:
10.0pt;font-family:Verdana'>Thanks a lot.<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=2 color=silver face=Verdana><span lang=EN-US
style='font-size:10.0pt;font-family:Verdana;color:silver'>2009-08-30 \
</span></font><font size=2 face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<div class=MsoNormal align=left style='text-align:left'><font size=2
face=Verdana><span lang=EN-US style='font-size:10.0pt;font-family:Verdana'>
<hr size=2 width=122 style='width:91.5pt' align=left>
</span></font></div>
<div>
<p class=MsoNormal><font size=2 color=silver face=Verdana><span lang=EN-US
style='font-size:10.0pt;font-family:Verdana;color:silver'>Kyle Ma </span></font><font
size=2 face=Verdana><span lang=EN-US \
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
</div>
</div>
</div>
</body>
</html>
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