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

Re: [Xen-devel] inconsistent metadata of vhd file while live migration

To: Daniel Stodden <daniel.stodden@xxxxxxxxxx>
Subject: Re: [Xen-devel] inconsistent metadata of vhd file while live migration
From: alice wan <wanjia19870902@xxxxxxxxx>
Date: Wed, 16 Feb 2011 18:55:38 +0800
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Wed, 16 Feb 2011 02:56:50 -0800
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=cxwpl2dYKj+7hAC4Hiu784BZzPKkcm7gojB0ux5gR0s=; b=i0IDNsh1l0dkhJogM6Bv0Ofy5pVCps32Zoqa2JQPBayANi5BnKznK5OQz5z0ckMnge WHsD6GhQu3K+p7CMx9B96klXEnnsmwqnGcqRaufZjU43FgDcoNRcUkFsaLSujjz2jw1Q 9PrW/TDaVkK2Ba/fftewFZT/EHrWvaCH6wpjg=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=tAILpodzlpy1y8nU0OrZXf8D+Jl5ND5+keKkkkVgKOVLkCtMAebY8Uix0/CBfrmAFw CcV4qAjC8UD2Oiv4nWBTBXJ8I16ggXd0LqZP+tw6IqN5//Cs3hdy+/oHfVr052RCHKBr nQzwvYmZOMVw2E+yUTKQsVHNgyMUn3Mry7O5c=
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <1297631636.25844.5748.camel@xxxxxxxxxxxxxxxx>
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/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <AANLkTikOphFJOnT9r4yBv3nwZnxYy_EjHmG+Xm7ptnJ+@xxxxxxxxxxxxxx> <1297631468.25844.5743.camel@xxxxxxxxxxxxxxxx> <1297631636.25844.5748.camel@xxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
option b, c seems simpler and needs less codes for my code version(xen4.0.0+2.6.31.13).
i'm not familiar with blktap code. would you please tell in which function blktap run an implicit close/open when process first io?
 
and in latest stable version blktap2 pause/unpause is available ?
thanks
2011/2/14 Daniel Stodden <daniel.stodden@xxxxxxxxxx>
On Sun, 2011-02-13 at 16:11 -0500, Daniel Stodden wrote:

> B. Hack.
>    Let the toolstack issue a tap-ctl pause/unpause cycle before resume.
>    This will reopen the image.
>
> C. Back then, in the dark ages, blktap did this implicitly.
>    Every

 *first*

>  I/O request after disk create run an implicit close/open
>    cycle.

:o)

D
a
niel




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