From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1RjZGN-0008NH-45 for garchives@archives.gentoo.org; Sat, 07 Jan 2012 16:36:59 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id AAF6421C229; Sat, 7 Jan 2012 16:36:49 +0000 (UTC) Received: from svr-us4.tirtonadi.com (svr-us4.tirtonadi.com [69.65.43.212]) by pigeon.gentoo.org (Postfix) with ESMTP id 1C64221C227 for ; Sat, 7 Jan 2012 16:35:42 +0000 (UTC) Received: from mail-we0-f181.google.com ([74.125.82.181]) by svr-us4.tirtonadi.com with esmtpsa (TLSv1:RC4-SHA:128) (Exim 4.69) (envelope-from ) id 1RjZFA-001oxR-FQ for gentoo-user@lists.gentoo.org; Sat, 07 Jan 2012 23:35:44 +0700 Received: by werm12 with SMTP id m12so2239239wer.40 for ; Sat, 07 Jan 2012 08:35:38 -0800 (PST) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.216.131.29 with SMTP id l29mr4886361wei.5.1325954138083; Sat, 07 Jan 2012 08:35:38 -0800 (PST) Received: by 10.223.83.12 with HTTP; Sat, 7 Jan 2012 08:35:38 -0800 (PST) Received: by 10.223.83.12 with HTTP; Sat, 7 Jan 2012 08:35:38 -0800 (PST) In-Reply-To: <4F084B8B.4080104@persimplex.net> References: <1325937084.37030@rumba> <4F084B8B.4080104@persimplex.net> Date: Sat, 7 Jan 2012 23:35:38 +0700 Message-ID: Subject: Re: [gentoo-user] gentoo-sources and xen blktap driver? From: Pandu Poluan To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=0016e6d58f6f63909b04b5f2c158 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - svr-us4.tirtonadi.com X-AntiAbuse: Original Domain - lists.gentoo.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - poluan.info X-Archives-Salt: 334e9632-f5c1-468b-aafb-ee72f6e5fd75 X-Archives-Hash: de3b840af13f62d63b0d6df6248f14f5 --0016e6d58f6f63909b04b5f2c158 Content-Type: text/plain; charset=UTF-8 On Jan 7, 2012 8:44 PM, "victor romanchuk" wrote: > > Konstantinos Agouros wrote, at 01/07/2012 03:51 PM: > > since xen got into the mainstream kernel the way to go is to use > > gentoo-sources for dom0 and the domUs. However the blktap modules are not > > there. Is there any way to get this to work? > > blktap drivers were excluded from kernel mainline since 3.x, these two threads > from xen-users mailing list might put some light in that context: > > http://old-list-archives.xen.org/archives/html/xen-users/2011-07/msg00637.html > http://old-list-archives.xen.org/archives/html/xen-users/2011-10/msg00065.html > > the latest sys-kernel/xen-sources containing working blktap (not blktap2) is > 2.6.38 (this is buggy from my point of view; i'm still sitting on 2.6.34-r5 for > production installations) > Can someone shed a light on the importance of blktap, i.e., why one would want to use it when -- as someone explained in the first email thread you gave -- blkfront+blkend is enough for paravirtualization? Rgds, --0016e6d58f6f63909b04b5f2c158 Content-Type: text/html; charset=UTF-8


On Jan 7, 2012 8:44 PM, "victor romanchuk" <rom@persimplex.net> wrote:
>
> Konstantinos Agouros wrote, at 01/07/2012 03:51 PM:
> > since xen got into the mainstream kernel the way to go is to use
> > gentoo-sources for dom0 and the domUs. However the blktap modules are not
> > there. Is there any way to get this to work?
>
> blktap drivers were excluded from kernel mainline since 3.x, these two threads
> from xen-users mailing list might put some light in that context:
>
> http://old-list-archives.xen.org/archives/html/xen-users/2011-07/msg00637.html
> http://old-list-archives.xen.org/archives/html/xen-users/2011-10/msg00065.html
>
> the latest sys-kernel/xen-sources containing working blktap (not blktap2) is
> 2.6.38 (this is buggy from my point of view; i'm still sitting on 2.6.34-r5 for
> production installations)
>

Can someone shed a light on the importance of blktap, i.e., why one would want to use it when -- as someone explained in the first email thread you gave -- blkfront+blkend is enough for paravirtualization?

Rgds,

--0016e6d58f6f63909b04b5f2c158--