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] [GIT PULL] for-2.6.32/bug-fixes

To: "Konrad Rzeszutek Wilk" <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] [GIT PULL] for-2.6.32/bug-fixes
From: "Jan Beulich" <JBeulich@xxxxxxxxxx>
Date: Wed, 18 May 2011 15:31:35 +0100
Cc: jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 18 May 2011 07:31:13 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20110518132442.GB3238@xxxxxxxxxxxx>
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: <4DD373C0020000780007014D@xxxxxxxxxxxxxxxxxx> <20110518132442.GB3238@xxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
>>> On 18.05.11 at 15:24, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
>> >Well, req->ns_segments = 0, so nseg is zero, which means all
>> >of those for loops never get executed.
>> 
>> This you say is the case for the request you saw the failure with, or
>> *all* barrier requests? In the latter case, what do you conclude this
> 
> Good question. It was the first barrier request sent when guest tried to
> mount the filesystem. I will instrument the code to see what the other
> barriers contained when they were sent.

That wouldn't tell you anything if they're all empty, as there's nothing
preventing other guests (including other guest OSes) to still send
non-empty ones - after all the protocol allows for this.

Jan

>> from?




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