Displaying 20 results from an estimated 2000 matches similar to: "Xen 4.0.1, tap vs tap2, blktap2 documentation, and gentoo-xen-kernel problem"
2010 Sep 07
5
Remus blktap2 issue
Hello,
I have been playing around with Remus on Xen 4.0.1, attempting to fail-over
for an HVM domU.
I''ve run into some problems that I think could be related to tapdisk2 and
its interaction with how one sets up Remus disk replication in the domU
config file.
A few things I''ve noticed:
-The tap:remus:backupHostIP:port|aio:imagePath notation does not work for
me, although this
2011 Aug 04
3
[Q] VmError: Disk isn''t accessible with tap2:tapdisk:vhd
I''m newbie Xen-4.1.1
I''m trying to boot DomU with the following configuration.
Sometime DomU boot, but sometime boot failed
I''m not sure what is the problem.
I can attach that image with tap-ctl on Dom0.
Does anybody advice me about this problem??
Sincerely
* Environment
OS : Scientific Linux 6.1 x86_64
Kernel : 2.6.32.43
2010 Jun 22
18
blktap2 does not work
Distro: debian unstable
Xen version: 4.0.0-2
This is the config:
#HVM
#still no qemu-dm in debian
#kernel = "/usr/lib/xen-4.0/boot/hvmloader"
#builder = ''hvm''
#memory = 2048
#name = "webserver"
#vif = [''bridge=eth0'']
#disk = [''tap:tapdisk:aio:/srv/xen/webserver.img,xvda,w'',''phy:/dev/cdrom,xvdb:cdrom,r'']
2012 Feb 18
1
Mounting filesystems with blktap2
For those wanting to know how to mount filesystems through blktap2
here is how you do it, as I couldn''t find it fully documented.
The instructions on the blktap2 readme file are rather out of date.
You can mount them under Dom0 like so.
e.g. to mount a vhd file,
sudo xm block-attach 0 tap2:vhd:/home/xen/xenwin7-persist.vhd xvdb w 0
Now the device should appear under /dev
ls
2010 Jul 19
17
BLKTAPCTRL[2375]: blktapctrl_linux.c:86: blktap0 open failed
I''m getting this message (subject line) in daemon.log every time I
start or restart xend. I''m not sure if this is related to the fact
that I cannot boot up my Windows domU from a VHD file. The Windows
domU was working fine with Xen 4.0.0 (with 2.6.32.14 dom0 kernel).
When I upgraded to Xen 4.0.1-rc4 (with 2.6.32.16 dom0 kernel), I can
no long boot the Windows domU from VHD. The
2011 Apr 03
6
Memory sharing
Hi,
Currently i''m going through the source codes of tools/blktap2. I need to
find-out where blktap2 calls
1. mem_share_nominate()
2. mem_sharing_share_page() functions to do the memory sharing on HVM
guests.
Can someone please provide me some guidance on blktap2 driver.
Thanks,
Harshan
_______________________________________________
Xen-devel mailing list
2012 Oct 27
8
RFH: loopback & blktap(2) and CDROM
Hello,
I''m currently trying to understand some problems I had in the past with mixing
look-back with blktap(2) for HV and PV domains. I''m stuck reading the source
code, so I''d like to get some help from the list. Interrupt me if I got
something fundamentally wrong in my understanding so far:
1. With pure-HV the domU gets an emulated IDE (or whatever) disk. The
2012 Feb 15
2
a problem with using qcow2 format image files as virtual disks
Hi,
In most cases we use image files as virtual disks under the full-virtualization situation.On the version 4.1.2 of xen,I do the following command:
############################################################
dd if=/dev/zero of=myraw.img bs=1M seek=8K count=1
#Before the command below I install the operating system in myraw.img
qemu-img-xen create -b myraw.img -f qcow2 myqcow1.img 20000M
2010 Aug 01
4
Fw: [PATCH] blktap2: blktap2 and pygrub (xen-unstable)
Forwarding to you original patch requested.
It works for me.
Boris
--- On Sun, 7/11/10, eXeC001er <execooler@gmail.com> wrote:
From: eXeC001er <execooler@gmail.com>
Subject: [Xen-devel] [PATCH] blktap2: blktap2 and pygrub (xen-unstable)
To: "Xen-devel" <xen-devel@lists.xensource.com>
Date: Sunday, July 11, 2010, 9:18 AM
1. Bug fix for error: "Error: Device
2015 Jan 05
3
CentOS 6 Xen 4.4.1 packages available on virt6-testing / libvirt blktap2 problems
On Tue, Dec 16, 2014 at 10:29:53PM +0200, Pasi K?rkk?inen wrote:
> >
> > * xend is now disabled by default. You can enable it by running
> > chkconfig. xend has been removed from the tree entirely in Xen 4.5,
> > so this should (hopefully) serve as a "wake-up-call" for people to
> > begin the transition over to xend.
> >
> > * A lot have
2010 Jun 22
2
domU can not start in Xen 4.0.1-rc3-pre using tapdisk
The domU is using pygrub to boot its own 2.6.18.8-xen kernel. It can be
booted successfully under 2.6.18.8-xen dom0 and xen 3.3.1.
However when upgrade dom0 to 2.6.32.15 and xen 4.0.1-rc3-pre, the domU can
not boot with tapdisk. I am wondering it is something related to the blktap
driver.
*When using tap:aio:* PATH/disk.img in domU disk configuration, the boot
process hanged at a prompt:
XENBUS:
2010 Jun 22
2
domU can not start in Xen 4.0.1-rc3-pre using tapdisk
The domU is using pygrub to boot its own 2.6.18.8-xen kernel. It can be
booted successfully under 2.6.18.8-xen dom0 and xen 3.3.1.
However when upgrade dom0 to 2.6.32.15 and xen 4.0.1-rc3-pre, the domU can
not boot with tapdisk. I am wondering it is something related to the blktap
driver.
*When using tap:aio:* PATH/disk.img in domU disk configuration, the boot
process hanged at a prompt:
XENBUS:
2010 Jun 21
7
Third release candidate for Xen 4.0.1
Folks,
The tag 4.0.1-rc3 has been added to
http://xenbits.xensource.com/xen-4.0-testing.hg
Please test!
-- Keir
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
2013 Oct 25
2
Install blktap2 kernel module on CentOS 6
Hi,
I''m currently stuck with creating VM which cannot boot with disk using blktap2 driver. I''ve been searching nearly a whole week and I couldn''t get a answer. When creating vm with blktap2, it keep shows a error:
libxl: debug: libxl_device.c:200:disk_try_backend: Disk vdev=xvda, backend tap unsuitable because blktap not available.
VM configuration (XML):
2010 Apr 08
3
blktap2: help please?
Hi guys,
i''ve just installed xen 4.0. Since always blktapctl has never worked on
my dell 1950III. I even posted a bug but so far i can''t use tap:aio or
similar.
I thought that with version 4 this would work, but it didn''t. I still
see syslog errors from blktap version 1.0.0.
Today i wanted to try version 2 I found on the xen/tools source folder.
I compiled the source
2015 Jan 06
4
Xen4CentOS python-virtinst version issue, blktap2 problem
Hello,
It seems currently when you "yum update" CentOS 6.6 Xen host you end up getting python-virtinst from c6 base repo:
python-virtinst-0.600.0-24.el6.noarch
and not from Xen4CentOS repo, because the version there is "older": 0.600.0-19.
.. which means the centos/xen-specific patch in python-virtinst is "lost". (default to tap2 instead of tap1, to make blktap2
2012 Nov 07
4
[PATCH 2/2] 4.1.2 blktap2 cleanup fixes.
---------------------------------------------------------------------------
The following patch when applied on top of:
libxl: attempt to cleanup tapdisk processes on disk backend destroy.
Establishes correct cleanup behavior for blktap devices. This patch
implements the release of the backend device before calling for
the destruction of the userspace component of the blktap device.
Without
2009 May 28
1
[PATCH] blktap2: fix makefile of vhd for parallel make
blktap2: fix makefile of vhd for parallel make
With parallel make, libvhd might not be created before
link resulting in link error. This patch guarantees it.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
diff --git a/tools/blktap2/vhd/Makefile b/tools/blktap2/vhd/Makefile
--- a/tools/blktap2/vhd/Makefile
+++ b/tools/blktap2/vhd/Makefile
@@ -12,6 +12,9 @@ CFLAGS +=
2012 Nov 07
4
[PATCH 1/2] 4.1.2 blktap2 cleanup fixes.
---------------------------------------------------------------------------
Backport of the following patch from development:
# User Ian Campbell <[hidden email]>
# Date 1309968705 -3600
# Node ID e4781aedf817c5ab36f6f3077e44c43c566a2812
# Parent 700d0f03d50aa6619d313c1ff6aea7fd429d28a7
libxl: attempt to cleanup tapdisk processes on disk backend destroy.
This patch properly terminates the
2010 Jan 28
31
[PATCH 0 of 4] aio event fd support to blktap2
Get blktap2 running on pvops.
This mainly adds eventfd support to the userland code. Based on some
prior cleanup to tapdisk-queue and the server object. We had most of
that in XenServer for a while, so I kept it stacked.
1. Clean up IPC and AIO init in tapdisk-server.
[I think tapdisk-ipc in blktap2 is basically obsolete.
Pending a later patch to remove it?]
2. Split tapdisk-queue into