xen February 2011

xen@lists.fedoraproject.org

12 participants
11 discussions

execute commands from dom0 into domU
by silviu d 06 Jun '15

06 Jun '15

Hello, I was wondering if there is a way to execute commands from dom0 into domU without loging into domU with ssh. thanks

3 2

2.6.32.x dom0 kernel
by M A Young 28 Apr '11

28 Apr '11

I have built another 2.6.32.x based kernel (2.6.32.25-172.xendom0.fc12) at http://koji.fedoraproject.org/koji/taskinfo?taskID=2583536 and the repository http://repos.fedorapeople.org/repos/myoung/dom0-kernel/ . This updates the kernel from 2.6.32.25-rc1 to 2.6.32.25 (which may not actually change anything), and uses a later version of xen/stable-2.6.3.32.x which adds a couple of xen fixes. Michael Young

5 18

2.6.38-rc6 dom0 kernel
by M A Young 14 Mar '11

14 Mar '11

Here is another kernel (2.6.38-0.rc6.git0.1.xendom0.fc15) at http://koji.fedoraproject.org/koji/taskinfo?taskID=2861178 . This comes with a warning because for me the dom0 system reboots when a domU guest is shutdown. Michael Young

4 5

Odd behavior from OpenSSL benchmark
by W. Michael Petullo 28 Feb '11

28 Feb '11

I sent the following to xen-users, but thought I'd ask the Fedora folks too. I am running the OpenSSL s_server/s_time benchmark between two DomUs. The two DomUs are running on separate machines, and they are the only unprivileged domain running on their machine. Both machines have dual core AMD processors, with Dom0 limited to one core using dom0_max_vcpus=1. I am using xen-4.0.1 and Xen kernel-2.6.32.26. When I run openssl s_time -connect 131.193.36.59:443 I see: No CIPHER specified Collecting connection statistics for 30 seconds tttttttttttttttttttttttttttttttttttttttttttttttttttttt This command makes SSL connections and prints 't' to indicate success. The t's are printed quickly at first but then they pause. After a pause, things continue again and repeat. It seems that s_time processes for approximately one second and then pauses for three seconds. The same thing happens when I run s_time in Dom0 but s_server in DomU (on the separate machines). When I run both s_server and s_time in Dom0 (on the separate machines), there are no pauses. Also, when I run s_time in DomU and s_server in Dom0 (on the separate machines) there are no pauses. Does anyone have any idea what could be going on? -- Mike :wq

1 0

Error "Path closed or removed during hotplug" with xen-4.0.1 on Fedora 14 (x86_64)
by Kaustav 22 Feb '11

22 Feb '11

Hi, I am running xen-4.0.1 on Fedora 14 (x86_64) with kernel 2.6.38-0.rc4. All xen modules are loaded correctly. # lsmod | grep xen xen_netback 24607 0 [permanent] xen_gntdev 9063 0 xen_evtchn 5179 1 xenfs 9917 1 I have created images of Ubuntu (maverick) & Debian (squeeze) using xen-create-image. However, when I try to boot the images using xm, I am getting the following error (for both Debian & Ubuntu): # xm create /etc/xen/debian01.cfg -c Using config file "/etc/xen/debian01.cfg". Error: Device 51714 (vbd) could not be connected. Path closed or removed during hotplug add: backend/vbd/16/51714 state: 1 SELinux is turned off. The disk section of cfg is as follows: root = '/dev/xvda2 ro' disk = [ 'file:/home/xen/domains/debian01/disk.img,xvda2,w', 'file:/home/xen/domains/debian01/swap.img,xvda1,w', ] I am stuck at this for weeks, and have almost exhausted google hits. Any help would be highly appreciated. Thanks & Regards, Kaustav

2 2

xen 4.1.0 rc5
by M A Young 16 Feb '11

16 Feb '11

There is a build of the newly released xen release candidate for xen-4.1.0-rc5 at http://koji.fedoraproject.org/koji/taskinfo?taskID=2845415 Michael Young

1 0

2.6.38-rc4 dom0 kernel
by M A Young 14 Feb '11

14 Feb '11

I have a new kernel (2.6.38-0.rc4.git3.1.xendom0.fc15) at http://koji.fedoraproject.org/koji/taskinfo?taskID=2833991 . This uses the Konrad's devel/next-2.6.38 branch (from http://git.kernel.org/?p=linux/kernel/git/konrad/xen.git ), as I have been having trouble which Jeremy's xen/next-2.6.38 branch. It has the revised xen-netback patches, so doesn't need the hack to /etc/sysconfig/modules/xen.modules that the previous kernel needed to avoid backtraces (indeed the hack stops xen-netback loading with this kernel as the netback_kthread parameter has been dropped). Michael Young

3 4

New xen RCs
by M A Young 11 Feb '11

11 Feb '11

I have some new xen release candidate packages for you to test. They are xen-4.0.2-0.rc2.fc14 at http://koji.fedoraproject.org/koji/taskinfo?taskID=2830813 and xen-4.1.0-0.1.rc4.fc14 at http://koji.fedoraproject.org/koji/taskinfo?taskID=2830883 Michael Young

2 2

xl create ... -c
by W. Michael Petullo 11 Feb '11

11 Feb '11

Has anyone else noticed that "xl create DOM -c" does not work when using xen-runtime-4.1.0-0.1.rc4.fc14.x86_64? I see: $ sudo xl create Client.conf -c Usage: xl [-v] create <ConfigFile> [options] [vars] Create a domain from config file <filename>. Options: -h Print this help. -p Leave the domain paused after it is created. -c Connect to the console after the domain is created. So the documentation states that "-c" should accepted, but the program does not accept it. -- Mike :wq

2 1

link to download dom0 kernel for fedora 14 (minimum 2.6.35)
by balaji pattewar 08 Feb '11

08 Feb '11

Hi , I am trying to install XEN on Fedora 14 with linux kernel 2.6.35 or above as dom0. Can some body give link for XEN 4.01 RPM for Fedora 14 with linux dom0 kernel 2.6.35 and above. I try to search on link given in email Kozi but I am not able to downlad it. I am able to download Xen 4.01 but not kernel. Can some body also have some tutorial for installing XEN on Fedora 14 will be appreciated. Thanks, Balaji

2 1

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xen February 2011