WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] Re: dom0cut script patch for x86-64.

To: ito@xxxxxxxx
Subject: [Xen-devel] Re: dom0cut script patch for x86-64.
From: Kazuo Moriwaka <moriwaka@xxxxxxxxxxxxx>
Date: Wed, 10 Jan 2007 10:13:57 +0900 (JST)
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 10 Jan 2007 01:46:48 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <57CD925E-6278-4637-8D08-B9FD10FF29D0@xxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <57CD925E-6278-4637-8D08-B9FD10FF29D0@xxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Hello,

I'm sorry for delayed reply.  I just backed from off.

Thank you for your fix.  I applied this patch and add '=' to other
format strings which contain 'L' exclude one case(which need to treat
'int' variable both in 32 and 64 bit environment)

You can get updated tarball from:

http://people.valinux.co.jp/~moriwaka/dumpread/dom0cut-0.1.2.tar.gz

Thanks,
-- 
Kazuo Moriwaka <moriwaka@xxxxxxxxxxxxx>

From: Hiromichi Itou <ito@xxxxxxxx>
Subject: dom0cut script patch for x86-64.
Date: Fri, 5 Jan 2007 18:53:15 +0900

> Hi,
> 
> In my environment (x86-64), the following problem occurred by  
> executing dom0cut script.
> 
> # dom0cut_x86.py -oDump2006122801 -dvmcore.2006122801 --target=0 -x/ 
> root/xen-3.0.4-testing.hg/xen/xen-syms -ax86_64 -f
> 
> Traceback (most recent call last):
>    File "/usr/bin/dom0cut_x86.py", line 174, in ?
>      main()
>    File "/usr/bin/dom0cut_x86.py", line 165, in main
>      domextract(outdump, dump, options.xensyms, domid)
>    File "/usr/bin/dom0cut_x86.py", line 43, in domextract
>      dom_context = xenimg.get_domain_context(domp)
>    File "/usr/lib/python2.3/site-packages/xendump/XenImage.py", line  
> 184, in get_domain_context
>      guest_reg.fromXen(regtxt)
>    File "/usr/lib/python2.3/site-packages/xendump/Register.py", line  
> 41, in fromXen
>      return self.fromString(self.xenfmt, self.xenregs, regstring)
>    File "/usr/lib/python2.3/site-packages/xendump/Register.py", line  
> 28, in fromString
>      regs = struct.unpack(fmt, regstring)
> struct.error: unpack str size does not match format
> 
> I checked the size of fmt and regstring.  (fmt is  
> 'QQQQQQQQQQQQQQQLLQHHBBBBQQQQQQQ' in this case.)
> struct.calcsize(fmt) was 208. len(regstring) was 200.
> 
> The cause of this difference is in the behavior of the struct module  
> in 64bit environment.
> struct.calcsize('L') is expected to become 4. But,struct.calcsize 
> ('L') was 8 in my environment.
> This difference can be corrected by adding the first character of the  
> format string.
> 
> An attached patch fix this problem.
> 
> Hiromichi Ito
> 

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

<Prev in Thread] Current Thread [Next in Thread>