similar to: No disk devices with tap:aio

Package: xen-utils-3.2-1 Version: 3.2.1-2 Severity: important /usr/lib/xen-3.2-1/bin/blktapctrl searches for tapdisk executable in /usr/bin while is in /usr/lib/xen-3.2-1/bin this makes tap:aio unusable I've linked to /usr/bin and everything went fine perhaps the idea is to patch sources to pick executable from the right directory Regards -- System Information: Debian Release: 5.0

Hello, I installed Xen 3.2.1 on Debian Lenny from packages. Then created image files with 'xen-create-image --size=2Gb --swap=128Mb --dhcp --dir=/xen --hostname=test'. Now I'm trying to run Debian in PV mode using the following configuration file: kernel = "/boot/vmlinuz-2.6.26-1-xen-686" ramdisk = "/boot/initrd.img-2.6.26-1-xen-686" memory = 128 name =

Hi all I was reading through Xen 3 user manual and saw this tap:aio should be used instead of loopback... Then I came to do that, but I can get it working with replacing `file'' URI''s with `tap:aio''. My OS: Debian Lenny 2.6.26-2-xen-amd64 DomU Xen configuration file: kernel = ''/boot/vmlinuz-2.6.26-2-xen-amd64'' ramdisk =

Maybe it''s something I''m doing wrong, but I have a 15gb image that I use with disk = [ "tap:aio:/root/images/vista32.img,hda,w" ] It was working fine on Friday, but today it failed to boot with an error message. The same works fine when I replace "tap:aio:" with "file:". It seems like qemu-dm tries to open the file with the "aio:" still

Hi there I am analyzing disk performance. I'm testing raw (tap: aio) and lvm (phy :). The tests I'm doing on a SLES11SP3, cpu I7, 4GBRam, disco-SATAII 7200rpm. With phy: lvm achievement 70-80MiB / s (an acceptable value) With tap: aio: file.raw achievement 5-9MiB / s, which is very low ... 10MiB / s is what you should expect access to a tap: aio: file.raw? or I have something

Hi, xen-3.0.3-41.el5 on RHEL5.1 I''m trying to use tap:aio thusly: disk = [ ''file:/var/lib/xen/images/webmail.golden.net.img,hda,w'' _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Can anyone explain to me why tap:aio sucks so badly? We''ve got numerous CentOS 5 dom0s running file-backed domUs with tap:aio. The moment any one of them starts doing something disk-intensive, idle CPU in dom0 decreases, iowait increases, and disk IO for every other domU on the system suffers. Where lies the problem, and what to do about it? Sincerely, Ray Barnes

Hello, I''m running Xen 3.0.4 on a test server and I''ve been having several file system corruption problems using the tap:aio driver. This message shows up in dmesg on different machines. EXT2-fs error (device sda1): ext2_check_page: bad entry in directory #114914: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0 EXT2-fs error (device sda1):

Hello folks, After I upgrade xen-tools to 4.1-unstable, the vm can''t start with disk = [ ''tap:aio:/path/to/image.img,xvda1,w'' ] The vm can''t connect to blk back-end because xm command doesn''t set tapdisk2 (tap-ctl) correctly. But with xl command, everything work right. Any help to xm? I need python support provided by xm in vm config file. Thanks.

Hello folks, After I upgrade xen-tools to 4.1-unstable, the vm can''t start with disk = [ ''tap:aio:/path/to/image.img,xvda1,w'' ] The vm can''t connect to blk back-end because xm command doesn''t set tapdisk2 (tap-ctl) correctly. But with xl command, everything work right. Any help to xm? I need python support provided by xm in vm config file. Thanks.

Hello, I'm wondering if anyone out there is doing tap:aio disk devices on a Xen HVM vm with any success. Please let me know if you are, and perhaps your version info and a config file snippet. I've posted this to the xen-users list, and what I'm trying to do seems to be correct, works on Ubuntu, Debian, and XenSource; but it doesn't work on CentOS. Here's the snippet from my

I have never been able to get tap:aio devices running. When I try it in a Linux PV domain, it says: XENBUS: Waiting for devices to initialise: 295s... And they don''t work in my GPLPV drivers, which is the problem I am trying to solve, but I''d like to see them work under Linux first. Is there anything extra I need to do? I have loaded the xenblktap module (forgot to do this

This is an fairly easy tutorial and I hope you enjoy it! Have a try! Here is the preview of the final result: alternative version I have: (adjusted the colour balance and add two planets into it) OK Let?s get started! To complete this tutorial, you will need the following stocks: Dancer Nebula Texture 1 Nebula Texture 2 Step 1 Load the dancer image into Photoshop and resize the image to 1200px

Hello everybody. I have a strange problem with cifs and Samba share. I have a Qnap NAS server (TS-109) and I would like to have a private share where I could keep my stuff and access them through Windows and Linux. But I have an odd problem and I can't tell what's wrong. I can write new files on a share, I can update them but I can't write on special occasions. And because of this

Hi, I am having problems creating VMs in virt-manager. I have played with different xen hypervisor versions 3.0 & 3.4 (with rpm -i --force) but have in principle gone back to the originals. - Though I cannot absolutely exclude that something has gone wrong. In principle I am using rhel 5.4 with the gitco xen 3.4 hypervisor. Can anybody put me on the right track with the attached error

On 09/06/2013 07:32 PM, Jaka Hudoklin wrote: > Hello! > > Okay i tried again with only staticly linked busybox: > offlinehacker:~/ $ /home/offlinehacker/busybox/busybox > BusyBox v1.17.1 (Debian 1:1.17.1-8) multi-call binary. > Copyright (C) 1998-2009 Erik Andersen, Rob Landley, Denys Vlasenko > and others. Licensed under GPLv2. > See source distribution for full notice.

It seems to be working now, what I needed was libvirt built with libcap support and also securityfs patch. Thanks! On Mon, Sep 9, 2013 at 1:08 PM, Jaka Hudoklin <jakahudoklin@gmail.com>wrote: > I applied your patch, but no success. What bothers me is that connection > gets reseted. By the way, i'm using systemd, with process started in > forking mode and as daemon. Could this

I applied your patch, but no success. What bothers me is that connection gets reseted. By the way, i'm using systemd, with process started in forking mode and as daemon. Could this cause any problems? This is my libvirtd.conf, if it helps anything: unix_sock_group = "libvirtd" unix_sock_rw_perms = "0770" auth_unix_ro = "none" auth_unix_rw = "none" Can

I'm looking into trying out AIO on one of our file servers in the office but I can't find any info on what the values for "aio read size" and "aio write size" correspond to. Is it a buffer size of some sort or a tuning type parameter were it allows the socket to read/write x blocks? Thanks, David Miller

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