similar to: over-allocation of memory

As I understand concept of xenballooning, it allow to take memory from guest and return it to hypervisor. This allow to reduce amount of memory allocated to VM in realtime without rebooting VM. But how we can add more memory to guest VM in realtime, than was at boot time? Can we somehow make balloon inflated at start time? (F.e. VM starts with memory = 512Mb and balloon inflating to +512Mb).

hi folks, after upgrading the host, hp dl 160 g6, from 24 gb ram udims to 36gb ram rdims my debian wont start up anymore. the debian crashes and reboots after starting to load xen drivers. when i boot my debian host with the default kernel, no problem, startup and loging ok. any glue from anyone? thanks a lot for some hints :-)

Hi There . As from what I see, my system is not seeing all the available ( 4GB ) o memory, does xen take some for it''s own? Am I missing something in the kernel? netwarrior build-linux-2.6-pvops_x86_64 # dmesg |grep -i memo released 151863 pages of unused memory initial memory mapped : 0 - 20000000 init_memory_mapping: 0000000000000000-00000000aff90000 Memory: 2749108k/2883136k

Hi, I''m just wondering is it possible, or planned for the new future, to balloon a XEN domU''s CPU cores? i.e. If I setup a domU on a Dual Quad Core machine, but only assign 2 CPU cores to it now, can I add some more later without rebooting? -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell:

Hi All, Having an issue with xen-4.0-unstable where after completing a live migration, an arp is never sent out to update the switch with the new location of the mac address. Network is configured as per libvirt''s instructions with the xen network-script disabled and the bridge (xenbr0) always up.

Hi List, i know xen from single systems. Now i using xcp and have a basic questions i din''t found in guides. How can i access the domU console like "xm create -c domU" switch Regards, Heiko _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hello, I’m having difficulty to starting Ubuntu 10.04 virtual machine with XCP 0.5.0. I put 3 files (vmlinuz, initrd.gz, xm-debian.cfg) in the same place under the unpacked ISO tree but when I start the VM, the following error is returned: # xe vm-install template="Ubuntu Lucid Lynx 10.04 (32-bit)" new-name-label=Teste other-config-install-repository=nfs:10.0.0.3:

Which kernel supports the iptables'' -m dstlimit? Do I need a patch or something else to get it to work? Is it too experimental? -- Покотиленко Костик <casper@meteor.dp.ua>

Hello, I have been investigating ways in collecting performance statistics of Guest domains running under Xen. 1) I am interested in finding out whether there is a way to obtain the current memory usage (not the amount allocated) for each guest domain? Xentop and other utilities display the amount of memory/RAM allocated to a domain, but not the amount of memory in use that you would

Hi All! I need to deploy a bridge firewall using linux kernel 2.6. I had success using kernel 2.4 plus br-nf patch. But the configuration does not work with kernel 2.6. If the default policy for the iptables FORWARD chain is ACCEPT I have a bridge. If iptables FORWARD chain is DROP I have an insulator (no packet flows). Any hint? I did some google search and in many places they say "kernel

Hello, I must be missing something very very basic. Because I am having trouble launching some vm''s that I recently built whereas I don''t have any problem at all launching some older images I made in very much the same way! First there is vm01 which works just fine: [root@lcent5-1:/etc/xen]$:xm create vm01 Using config file "./vm01". Started domain vm01

Hello, I must be missing something very very basic. Because I am having trouble launching some vm''s that I recently built whereas I don''t have any problem at all launching some older images I made in very much the same way! First there is vm01 which works just fine: [root@lcent5-1:/etc/xen]$:xm create vm01 Using config file "./vm01". Started domain vm01

Hi! Can someone tell me where I can find an official webpage that states XEN''s limits (for instance max vcpus, max memory / domu etc)? I just can''t find such page :-) And another question: If I want a very stable and easily installable dom0 system that is CentOS or OpenSUSE, that are the pros and cons between the two? I know that OpenSUSE has newer versions of XEN, so that

Due to IA64 balloon driver not ready and it depends on max memory value to allocate its memory. So this fix is necessary now. Thanks & Best Regards -Xiantao OTC,Intel Corporation _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Recompiling kernel Hi I am using CentOS 4 and trying to recompile kernel for my AMD Thunderbird 1.4 CPU. I used a manual for fedora 3,but I can not make it. After doing #installkernel 2.6-new arch/i386/boot/bzlmage System.map My comuter says "arch/i386/boot/bzlmage no such a file or directory" Could you possibly help me where the appropriate directory is please? Thank you for

Hi, I am using xen 4.0.1 from debian Squeeze repositories and dom0 has kernel 2.6.32-5-xen-amd64(also stock debian). I wanted to set a high value to maxmem in my xmdomain.cfg vm config files so that I can increase memory as needed without rebooting. Unfortunately as soon as I set this paramater I see really wiered things. For example, I am trying to install a windows HVM guest. When maxmem is

I am trying to allow domains'' memory allocation to be altered by using both the "memory" and "maxmem" options in my config files (i.e. set maxmem to some large value to allow the domain to be resized up to that amount, and memory to set the initial allocation). However I appear to lose potentially quite a large chunk of memory as I use a larger "maxmem"

Hello! I''m investigate strange behaviour of vfb in paravirt domU (centos 5) VNC servers started after creating domain, but information in xenstore appears sometimes after 1-2 minutes after start. Why this happening? And how can i get VNC port immediate after creating of domU? Thank''s. -- Vasiliy G Tolstov <v.tolstov@selfip.ru> Selfip.Ru

Howdy, I''ve read on http://revu.tauware.de/revu1-incoming/xen-0604251805/xen-3.0.2/docs/misc/xen_config.html about the maxmem option? What it do? I don''t see any result... I ''ve thought that the memory will automatically scaled to maxmem... but xm top show only 128 mb reserver for the guest machine also during high loads. greetings Fabian

Hi, I believe I can post this here. I have a domU ( Redhat 6) running in Paravirt mode. When I migrate this domU to another host, looks like the domU is freezing in the other host. When I take it back to original host ,it starts to run normally and this is what can see in dmesg of domU : suspending xenstore... trying to map vcpu_info 0 at ffff88000434b020, mfn b67660, offset 32 cpu 0 using