similar to: strange phenomenon on CPU affinity

Hello, There is a xen setup in which "brctl show" gives the following output. bridge name bridge id STP enabled interfaces eth1 8000.003048c9d4df no peth1 vif1.0 vif2.0

Hello, I've been trying to clone one disk image (LVM) to another using virt-resize. Unfortunately I get the following error: # virt-resize /dev/vm/vm6 /dev/vm/vm7 supermin helper [00004ms] finished creating kernel supermin helper [00251ms] finished mke2fs <domain type='kvm'> supermin helper [00252ms] visiting /usr/lib64/guestfs/supermin.d supermin helper [00252ms] visiting

Hi, everyone I have some questions with the OCFS2 when using it as vm-store. With Ubuntu 1204, kernel version is 3.2.40, and ocfs2-tools version is 1.6.4. As the network configure change, there are some issues as the log below. Why is there the information of "Node 255 (he) is the Recovery Master for the dead node 255" in the syslog? Why the host ZHJD-VM6 is blocked until it reboot

Hi, everyone I have some questions with the OCFS2 when using it as vm-store. With Ubuntu 1204, kernel version is 3.2.40, and ocfs2-tools version is 1.6.4. As the network configure change, there are some issues as the log below. Why is there the information of "Node 255 (he) is the Recovery Master for the dead node 255" in the syslog? Why the host ZHJD-VM6 is blocked until it reboot

Yes, List, I am an UML user that already have a real machine running 8 UML for: UML1..UML4 are used for connection to one leased line that is used for incoming/outgoing mail and incoming webmail accesses: UML1=internal firewall, connected to internal LAN UML2=mailrelay/dmz UML4=webrelay/dmz UML3=external firewall, connected to the NET UML5 and UML6 are used for connection to one ADSL line

Hello, This small series deals with some weirdness in the mechanism with which the credit scheduler choses what PCPU to tickle upon a VCPU wake-up. Details are available in the changelog of the first patch. The new approach has been extensively benchmarked and proved itself either beneficial or harmless. That means it does not introduce any significant amount of overhead and/or performances

Hello I am trying to get libvirt-python working in Ubuntu 14.04 64 bit system. I tried installing the binaries from the repo itself: 1. root@test-vm8-109:/home/test# libvirtd --version libvirtd (libvirt) 1.2.2 root@test-vm8-109:/home/test# python Python 2.7.6 (default, Mar 22 2014, 22:59:56) [GCC 4.8.2] on linux2 Type "help", "copyright", "credits" or

Hi Harish, I believe the proper establishment of a connection should be done by libvirt.open() or libvirt.openAuth() or libvirt.openReadOnly(). All of them will return a functional virConnect instance. I'm not sure this segfault is worth to fix since instantiate a virConnect directly is not an expected usage. Hope this information will help you. Best Regards, Hao Liu +86-010-62608262

I''ve just pushed some changes to hg that seem to speed things up a bit for me. On one machine with 2 x dual core 2.4Ghz AMD cpu''s, testing with iperf from DomU to Dom0 I get: Windows (vcpus = 2) - ~500MBits/sec - ~66% cpu utilization (eg 100% on one, and 33% on the second cpu) Linux (vcpus = 1) - ~2200MBits/sec On another machine with 1 x dual core 1.8Ghz AMD cpu, testing as

Hardware: Dell Poweredge R510 (32G ram, 8 CPU- Xeon) 64bit - xen 4.0.1 stable 64bit - 2.6.32.18 dom0 (.config attached) running Ubuntu 10.04 32 bit - 2.6.18.8 domU (.config attached) running ubuntu 8.04 domU has 3 tap2 disks, on lvm snapshots. domU has 2G mem, 2 VCPU workload on domU - ssh + top running, destroy domain -- This works . But, If i run a heavier workload say postgres db (just

Hi all, I am working with libvirt and I am trying to set cpu affinity. Now I can always use      virsh vcpupin <domain_name> <vcpu> <pcpu> to pin vcpus to pcpus. I want to do it using Python API. Now, there is function pinVcpu which is supposed to do that. But this is not working. For example I gave      dom.pinVcpu(0,1) but still my vcpu affinity is for all the pcpus. The

Hi all, This is the second take of a patch that I submitted some time ago for allowing specifying vcpu pinning taking NUMA nodes into account. IOW, something like this: * "nodes:0-3": all pCPUs of nodes 0,1,2,3;  * "nodes:0-3,^node:2": all pCPUS of nodes 0,1,3;  * "1,nodes:1-2,^6": pCPU 1 plus all pCPUs of nodes 1,2    but not pCPU 6; v1 was a single patch, this is

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

hi all     I have few n/w related questions.. hope some one can help clarify these.    1. While doing Xen bridge setup, the physical network looses the ip address and mac address while the bridge gets them. Why does it need to be that way. Why cant bridge act as a dummy interface and eth0 remains unchanged. 2.   Is it possible to allow 2 vms (vm1, vm2) to use the bridge, 2 other vms (vm3 and

xen/arch/x86/crash.c | 116 ++++++++++++++++++++++++++++++++++----- xen/arch/x86/machine_kexec.c | 19 ++++++ xen/arch/x86/x86_64/entry.S | 34 +++++++++++ xen/include/asm-x86/desc.h | 45 +++++++++++++++ xen/include/asm-x86/processor.h | 4 + 5 files changed, 203 insertions(+), 15 deletions(-) Experimentally, certain crash kernels will triple fault very early

in _csched_cpu_pick(), as not doing so may result in the domain''s node-affinity mask (as retrieved by csched_balance_cpumask() ) and online mask (as retrieved by cpupool_scheduler_cpumask() ) having an empty intersection. Therefore, when attempting a node-affinity load balancing step and running this: ... /* Pick an online CPU from the proper affinity mask */

Excuse the simple question... I'm not sure what I'm doing wrong with predict, but let me use this example: Suppose I do: dat<-matrix(c(0,0,10,20),2,byrow=T) lm1<-lm(dat[,2]~dat[,1]) Suppose I want to generate the linearly-interpolated y-values between the point (0,0) and (0,20) at every unit interval. I thought I just do: predict(lm1, data.frame(seq(0,10,1))) to get

Hello, I have noticed that when I use xen-create-image to generate an domU, the whole server (dom0 and domU''s) basically hangs until it is finished. This happens primarily during the creation of the ext3 filesystem on an LVM partition. This creation of the file system can take up to 4 or 5 minutes. At which point, any other domU''s are basically paused... tcp connections time

I start with: v1<-c(1,3,5,7) v2<-c(2,4,6,8) And I want to end up with: v3<-c(12,34,56,78) How do I get there? Thanks, David S. Herzberg, Ph.D. Vice President, Research and Development Western Psychological Services 12031 Wilshire Blvd. Los Angeles, CA 90025-1251 Phone: (310)478-2061 x144 FAX: (310)478-7838 email: davidh@wpspublish.com [[alternative HTML version deleted]]

Hi, That sounds simple but I cannot think of a really fast way of getting the following: c(1,1,2,2,3,3,4,4) would give c(1,3,5,7) i.e., a function that returns the indexes of the first occurrences of numbers. Note that numbers may have any order e.g., c(3,4,1,2,1,1,2,3,5), can be very large, and the vectors are also very large (which prohibits any loop). The best I could think of is: tmp =