similar to: Help !

Hi, I don''t want to hijack this thread. But as I lately posted a question which mainly was about weight and cap and this fits in perfectly (and also you seem to be an expert here), I repeat it below. In the meantime I saw an academic article Ludmilla Cherkasova et al. from which I understood that you have to careful that a Dom0 doesn''t get too much weight, as otherwise

I''ve looked long and hard for an answer to this and am stuck. I have setup a Windows XP DomU on Xen 3.2-1 running on Debian and I can connect fine to the instance via VNC but I get no networking within the windows instance as it says the IP address conflicts with another on the network. All my linux instances network fine, and I''m confused as to the issue. Can anybody provide

Hi, I don''t understand something about the vcpu-set function. My configuration: *memory = 2048 cpu = ''1-2'' maxvcpu = 4 vcpus = 1* When the DomU is running, and when i try to set 2 or 3 vpcu i get the error : xm vcpu-set domain_name 2 *Error: Cannot set vcpus greater than max vcpus on running domain Usage: xm vcpu-set <Domain> <vCPUs> Set the number of

I''m trying to figure out how I can pin the CPU affinity for individual domU''s in their configuration file. I allocated 3 CPUs to a particular domU, and the CPU affinity is floating between those three. I want to pin them to specific cores in the config file. I can do it on bootup by doing vcpu-pin on the command-line, but I want this to be set int he config file itself. Right

My dom0 is uing Centos 5.2 x64. I have just upgraded Xen from 3.3.0 to 3.3.1. After upgraded, I find that I cannot hotplug additional vcpu anymore. I have a domU "linux1" which is a paravirtualized vm with centos 5.2. I try to "xm vcpu-set linux1 4", it does not have any error message, but those vcpu cannot be displayed. I also tried to add vcpu using "virsh setvcpus

I am working on a project that uses OpenMP along with Xen''s VCPU hotplug feature. The OpenMP libraries are used for writing multi-threaded applications, and they have a function named omp_get_num_procs() that is used to determine the number of processors available on the system. I noticed that when using the xm vcpu-set command in Xen to change the number of vcpus assigned to a domU

Hi All, I am new to Xen, and would like to know if anyone can help with a problem I have. I have a dual - Quad Core Intel 5535 VT 2.66 server, with 24G ram running CentOS5 dom0 and domU (both 64 bit). Everything works great and I am SUPER impressed with the efficiency of Xen (i have always been a UML man). I would however, like to run a single domU domain, with a single VCPU, but get the power

Dear Xen Community, today we tried to upgrade our base server from a Xeon E5430 to a Xeon X5570 (Nehalem). This worked fine so far, but our DomUs with Kernel 2.6.27 no longer boot - they start up until the following message appears: [..] Mount-cache hash table entries: 256 Initializing cgroup subsys ns Initializing cgroup subsys cpuacct Initializing cgroup subsys memory Initializing cgroup

Hi, I''ve just attempted several times to install Fedora Linux domU''s on a Fedora 6 [32-bit xen kernel 2.6.20-1.2944], and it keeps crashing at various points when trying to format domU''s virtual disk. I''ve tried allocating 1 vcpu and 2 vcpus, and it still keeps crashing dom0. The machine has a total of two hyperthreaded 3.2ghz Xeon cpus, and 3GB of RAM.

On a 8 Core system only dom0 can set cap > 100 and vcpus > 1. On a domU ''xm sched-credit -d <domU> -c 200'' says "Error: cap is out of range". Vcpu cannot be set higher than 1 - regardless of boot/config/command line. Low performance is equivalent to the cap setting. See ''xm list --long'': (domain (domid 0) (uuid

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello, since pinning the cpu cores to Dom0 and the DomUs the shutdown of the VMs doesn''t work anymore. When shutting down or rebooting a DomU the DomU just freezes after the shutdown process but won''t reboot or stop the DomU. The shutdown itself seems to be complete though. We can reproduce this problem on 4 different servers.

We have tested Xen for 3.0.3rc1. The test includes Guest installation, device model, control panel, guest os and basic function tests. Here are issues found in our tests, For the first 6 issues, I think it''s better to be fixed in 3.0.3: 1. Para-virtualization driver doen''t work for HVM guests The hvm guest always hanged or met kernel panic when trying to load xenbus.ko. So vbd

Hi all, I am having confusion regarding the way a newly created domain is allocated vcpu. Initially during dom0 creation alloc_vcpu is called to create vcpu structs for all the available cpu''s and assigned to dom0. But its not the case for domU creation. 1. So how will dom0 relinquish/share vcpu to/with a newly created domU. Does this happen as part of the shared_info page mapping??

Hi, I have some problems to configure the xen I''ve installed (3.3.1). The computer is a Intel Core 2 Duo, I''m using Ubuntu 8.10 and have linux in my dom0 and winxp pro in my domU. I have two cores and I''d like to set the affinity of dom0 to cpu0 and domU to cpu1 but I haven''t find the way of making this permanent. I''ve set cpus=1 in the domU config

Hi, We can give multiple domains to the following commands. But, the help messages of the commands are explained to be able to give a single domain. # xm vcpu-list vm1 vm2 Name ID VCPU CPU State Time(s) CPU Affinity vm1 1 0 0 r-- 1409.3 any cpu vm2 2 0 0 r-- 1255.8

Hi i have assigned 4 vcpus to windows domu in in the configuration file for that VM but when i start that vm but when i start that machine check it only shows single cpu is there anything which need to defined or declared in configuration for windows domu Thanks _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; } Dear All, I am trying to use the virt-manager to install Xen Guest OS. I got the virt-manager installed and running on fc7 xen dom0 and am trying to install fc9 domU using virt-manager. I have only been able to find the install URL for fc9 (all other links fc6, fc7 etc does not work), but this URL doesnot complete the

Hi, I''m still trying to pin down one of the last issues on some systems here. I''m interested for input from people who *recognize* the following: Sending all processes the TERM signal... [ OK ] Sending all processes the KILL signal... [ OK ] Saving random seed: [ OK ] Syncing hardware clock to system time [FAILED] Turning off swap:

Hi, The xm vcpu-set command is able to set zero to the number of VCPU of a domain. Therefore I think that it is a natural result that the xm start command fails. But I think that a xm vcpu-set command must fail usually. # xm list Name ID Mem VCPUs State Time(s) Domain-0 0 942 2 r----- 75.2 vm1

Hello List, I am testing a XCP1 CentOS 5 paravirt vm with CloudLinux. http://cloudlinux.com/ CloudLinux is a great product for shared hosting and I was evaluation same on a paravirt guest. I found a strange thing in XCP. CloudLinux provides xen kernel for DomUs and after installing the CloudLinux in a DomU it actually got 32 cpus inside. I had assigned only 2 vCPU to that DomU. To confirm this I