similar to: Supported #of CPUs/VMs per CPUs

Hi, just upgraded my testsystem to 3.0.4 (using the provided source rpm, xen-3.0.4.1-1.src.rpm, rebuilt it to run on non-PXE but no changes besides that, and it doesn''t look like the 3.0.4-testing HG has major differences so far?) and I have two problems with rebooting domains (xm reboot, or reboot from inside the domain). 1) the kernel-commandline keeps growing. On the first boot

We have found a critical problem with the XEN 3.1 release (for those who are running 15-20 VMs on a single server). We are using the official XEN 3.1 release on a rackable server (Dual-Core AMD Opteron, 8GB RAM). The problem we are seeing is that intermittently vifs fail to work properly in VMs after we create around 15-17 VMs on our server (all running at the same time, created one by

Hi, we have 2 servers on centos5.2 in a cluster with the redhat cman in the configuration SERVER1 > LVM \ CMAN DRBD > XEN SERVER2 > LVM / For each xen we create a new local LVM on each node, put them in a drbd and install an os (debian 4 or ubuntu 8). The xens are running as pvm. Everything works fine since over 4 months now. But we have some performance-Problems: Writing

I am getting the following error with "xm list" on a x86_64 SLES10 Beta system running changeset 9435:11fee62328cc. I am able to bring up DomUs and I am able to do "xm info" without issues. But I am seeing similar "OverflowError: int exceeds XML-RPC limits" with "xm shutdown" and "xm destroy". My python version is 2.4.2. Any way I can get around

Hello ! Just a quick question about time synchronization between xen dom0 and domUs... We''re running Xen 3.1 64-bit, with 32 and 64 bits linux guests. It''s up since 89 days and the domU''s time is around 5 minutes behind the dom0, which is updated via ntpdate... Any idea why it doesn''t sync the guests even that /proc/sys/xen/independent_wallclock is 0 ?

I am confused with a problem: I have a blade with 64 physical CPUs and 64G physical RAM, and defined only one VM with 1 CPU and 40G RAM. For the first time I started the VM, it just took 3s, But for the second starting it took 30s. After studied it by printing log, I have located a place in the hypervisor where cost too much time, occupied 98% of the whole starting time. xen/common/page_alloc.c

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Hi, All Following 4 patches are for enabling CMCI of Intel CPUs in XEN. --------------------------------------------------------------------------- Patch 1: remove_intel_mce_old.patch is to remove old p4/p6 files. The reason is that machine check architecture for Intel families including p4/p6/latest are similar. We need not keep duplicated codes. Patch 2: change_stop_machine_run.patch changes

Xen patchbot -unstable <patchbot-unstable@lists.xensource.com> writes: > Fix NX/XD enable on secondary CPUs. > Signed-off-by: Keir Fraser <keir@xensource.com> I think I have this problem with PAE as well. Machine is SMP (hyperthreaded). PAE dom0 boots fine on CPU #0. PAE domU is bound to CPU #1 by default and boots to the login prompt as well, but only with NX disabled (and

Hi All, We have a xen server and using 8 core processor. I can see that there is 99% iowait on only core 0. 02:28:49 AM CPU %user %nice %sys %iowait %irq %soft %steal %idle intr/s 02:28:54 AM all 0.00 0.00 0.00 12.65 0.00 0.02 2.24 85.08 1359.88 02:28:54 AM 0 0.00 0.00 0.00 96.21 0.00 0.20 3.19 0.40 847.11 02:28:54 AM

Hi, I try to build experimental networks with Xen and stumbled over the same problem that has been described quite well by Mark Doll in his posting "xen_net: Failed to connect all virtual interfaces: err=-100" here: http://lists.xensource.com/archives/html/xen-users/2005-04/msg00447.html As it was still present in 2.0.6, I tried 3.0-devel and found NR_PIRQS and NR_DYNIRQS had been

Hi, I try to build experimental networks with Xen and stumbled over the same problem that has been described quite well by Mark Doll in his posting "xen_net: Failed to connect all virtual interfaces: err=-100" here: http://lists.xensource.com/archives/html/xen-users/2005-04/msg00447.html As it was still present in 2.0.6, I tried 3.0-devel and found NR_PIRQS and NR_DYNIRQS had been

I have been playing with Xen 3.0.1 for some days now, using debian sarge for dom0 and domU''s, and it works like a charm. But, I have a problem with rebooting domU''s. Here is the output from /var/log/xend.log [2006-03-30 13:44:58 xend.XendDomainInfo] INFO (XendDomainInfo:823) Domain has shutdown: name=vmintraweb1 id=5 reason=reboot . [2006-03-30 13:44:58 xend.XendDomainInfo]

Hey everyone, I realize that people asking about PCI passthrough has been thoroughly beaten to death many a time, however I couldn''t find the answer to these questions anywhere (and I''d really like to know :P) so please just bare with me. I know the GART built into AMD chipsets can act as a "mini IOMMU" and do DMA translation but not protection/isolation. However,

The main Xen mailing list ("xen-users") generally advises users to limit the memory on dom0 to 2Gb or less. Apparently the general version of Xen has troubles with this. What''s the corresponding advice for the Xen in OpenSolaris, Nevada b87 in particular? I''ve got an X4600 with 32Gb of physical memory on it. I was originally planning to have dom0 be the general-

Hello folks, I have a Xen server running on Centos 6.2 with 3.6.6-1.el6xen.x86_64 as the Dom0 kernel, and i have dedicted 2 CPUs and 4G ram for the Dom0.I have close to 4-5 Virtual machines running on the Xen server. The problem is that for some reason,carrying outany CPU/Disk intensive task on the Dom0 seems to be affecting the DomUs adversly.For ex.i noticed that my Domus become extremly

Hello, I have followed standard documents to install CentOS 5.3 & Xen. After playing around, stuffs are OK. So I move forward to tune the performance, are there any recommended documents/tutorial that specialized on performance tuning VM host/guest, on CentOS / Xen architecture? Thanks

Hi Booting my Xen Dom0 on Debian Etch (Kernel is the prebuild one from bits.xensource.com), I found that only one cpu core (of two: dual core) is recognized by the (dom0-)Kernel. Googling this issue, I found on xen-devel-list that xen kernel is named smp but isn''t really doing so. Is there any (prebuild) kernel that I can use for smp? Thanks Gregor Reich

Keir Fraser wrote: > On 29 Mar 2006, at 17:09, Nakajima, Jun wrote: > >> Are you doing live migration? In the default setup for domUs, the >> shadow code is never used. > > The mini patches for Linux we submitted to lkml depend on shadow mode. > > -- Keir > So this is _not_ for 3.0.2? I expect some hiccups with that if domUs start using other than log-dirty

This patch adds a check to see if v_end in setup_guest() wraps around to 0 and lets the builder exit gracefully when it does. Signed-off-by: Aravindh Puthiyaparambil <aravindh.puthiyaparambil@unisys.com> > -----Original Message----- > From: Keir Fraser [mailto:Keir.Fraser@cl.cam.ac.uk] > Sent: Thursday, June 01, 2006 6:14 AM > To: Puthiyaparambil, Aravindh > Cc: