similar to: Sharing cpus between domUs

-----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.

Hello, I hope this is the mailing list to discuss this issue, but if not sorry for spamming! I just discovered a really slow IO performance on DomUs running debian wheezy over wheezy dom0s, any operation that requires disk read or write takes a lot of time. Here are the hardware parameters: Single Xeon 5120 (dual core) 8GB of ram Hardware raid 2x250GB drives raid 1 his is the configuration

Hello everyone, I just put together a brand new system, and I''m getting the following when I try to start a domU: > [ 1902.049066] xend[12924]: segfault at b9ff6cd8 ip 00007f36c474afe1 sp 00007f36b9ff6af8 error 4 in libxenguest.so.4.0.0[7f36c4730000+24000] This is on an AMD CPU with the AVX instructions, and I already have this in my grub.cfg: > multiboot /xen-4.1.2.gz

Hi I''m using Xen on my AMD64 / Ubuntu 7.10 server which I recently upgraded, and my 2 VMs are decidedly flaky. They seem to be blocked for most of the time, and networking doesn''t work properly. How can I debug this and get them online reliably? Any tips gratefully received! * I can log in via console or ssh, can ping the server''s NICs but can''t ping the

Hi List, anybody heard of that or has a solution. Livemigration of domains with 1 vcpu works fine, with 2 or more not. migration process hangs, domainU still running on source host (everything works), name is domUname-migration. New domU on destination host is started in "p" mode and never run. A shutdown in the domU works fine, domU-migrration disapears. System is: Linux kang

Hi guys, I''m running a freenas domU (FreeBSD 8.3 based, ZFS v28, 2 vcpus mapped to the same HT capable core) to serve storage for all purpose including other domUs running on the same host. I did some study to understand how well it works and the result is kind of confusing. In summary, the network performance between domains on the same host is worse than expected. And NFS service to

On 10/23/2021 11:11 AM, Hans van Kranenburg wrote: > Hi! > > On 10/19/21 5:44 AM, Chuck Zmudzinski wrote: >> On 5/10/2021 1:33 PM, Chuck Zmudzinski wrote: >>> [...] with buster and bullseye running as the Dom0, I can only get the VGA/Passthrough feature to work with Windows Xen HVMs. I would expect both Windows and Linux HVMs to work comparably well. > You don't

I'm having trouble with IBM xseries 345/dual Xeon 2.66GHz showing only one processor. At boot I see "SMP motherboard not recognized". Using title CentOS (2.6.18-8.1.8.el5xen) root (hd0,0) kernel /xen.gz-2.6.18-8.1.8.el5 module /vmlinuz-2.6.18-8.1.8.el5xen ro root=/dev/VolGroup00/LogVol00 rhgb quiet module /initrd-2.6.18-8.1.8.el5xen.img have

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

Package: xen-utils-4.0 Version: 4.0.1-5.2 After clean upgrade from Lenny I got xend highly use CPU resources causing domU don't being created - due to timeouts for vifs and vbds (mostly CPU Steal Time was increasing - no iowaits). Tried Xen boot options acpi=noirq|ht without success. Option acpi=off solved that issue, but performance of the server was horrible. The final workaround was to

Hello. I can't install 5.3 domUs in 5.3 dom0 with the very same /etc/xen/domU.cfg and remote domU.ks that I've used in Centos 5.1. The only I've changed is Centos version (including new 5.3 xen kernel and initrd images). Results are that anaconda can't assing networki configuration to network interface (probably because of not seeing it) and such error messages in xend.log:

Hi, xl is currently ignoring the cpuid= variable in the config file. As I don''t like the current interface xm exposes (basically because it is complicated, unintuitive and very error prone), I implemented a new scheme for specifying CPUID flags policy, combining QEMU''s and Xen''s approach: cpuid = "<base>,<feature_name>=[01xks]*,... The patch includes a

Source: xen Version: 4.6.0-1 Severity: important Dear Maintainer, I attempted to create a HVM domU - using a config that previously worked on xen 4.4 (on Jessie). When I execute "xl create <vm config>", I get: Parsing config from router.internal.tomjepp.uk xc: error: Could not open kernel image '/usr/lib/xen/boot/hvmloader' (2 = No such file or directory): Internal

Hi, I would like to know what type of configuration could get me closer to 100% hits in zttest, when testing a TDM400P with 4 FXO ports, I am currently running kernel 2.4.31, on a IBM Xseries 306, with 3gh CPU, HT is disabled, PCI latency was changed, i still cant get more then 99.975% in the zttest testings, Thanks for any info. Marco.

Hello Xen-Users! Is there a way to connect two DomU on the same real Host without using a bridge. Figurativly speaking I''m looking for a cross-over-cable for two DomU. An ideas are welcome Volker Jaenisch -- ==================================================== inqbus it-consulting +49 ( 341 ) 5643800 Dr. Volker Jaenisch http://www.inqbus.de Herloßsohnstr. 12

Hello, We''ve recently started seeing several domUs on multiple machines losing all network connectivity. At least one of these machines (since they are customer machines I can''t verify it for all of them) give the error: $ sudo ifup eth0 eth0: full queue wasn''t stopped! About the only Google hit for this message is:

Hi all, after upgrading from xen 3.0 to xen 3.2 I cannot start my domUs: I get: VmError: Boot loader didn''t return any data! Suggestions? This is the log [2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:84) XendDomainInfo.create([''vm'', [''name'', ''engtest3.infolan''], [''memory'', ''2048''],

Hello, I read an interesting article on 2cpu.com that talks about the performance differences between a P4 processor with Hyperthreading(HT) enabled and disabled. http://www.2cpu.com/articles/ht_explored/index.html The bottom line of the article is that processor intensive applications greatly benefit from HT being enabled, but memory intensive applications can actually see a slight decrease in

stubdom: add example config file Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com> diff -r e69570f85e85 tools/examples/stubdom-ExampleHVMDomain --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/examples/stubdom-ExampleHVMDomain Thu Jul 17 19:31:13 2008 +0100 @@ -0,0 +1,21 @@ +# Not to be started directly, +# See xmexample.hvm-stubdom and stubdom/README for more details

I've a dual core system (see /proc/cpuinfo at the end) running CentOS 4.4 (fully up-to-date) and I'm running a PHP script that's parsing files and dumping the results into a database. Software versions: # rpm -q php php-4.3.9-3.22 # rpm -q MySQL-server-standard MySQL-server-standard-5.0.27-0.rhel4 # uname -srvmpio Linux 2.6.9-42.0.3.ELsmp #1 SMP Fri Oct 6 06:21:39 CDT 2006 i686