http://blog.gmane.org/gmane.comp.emulators.xen.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.emulators.xen.user/74286 <pre>Hi, everybody. A quick reminder that the next Xen DocumentDayis happening next Monday. More info on document days at http://wiki.xen.org/wiki/Xen_Document_Days Hope to see you on IRC! Feel free to add stuff to the TODO list (http://wiki.xen.org/wiki/Xen_Document_Days/TODO) or put your name besides an item if you intend to work on it. Best Regards Lars ********************* * Xen Document Days * ********************* We have another Xen document day come up next Monday. Xen Document Days are for people who care about Xen Documentation and want to improve it. We introduced Documentation Days, because working on documentation in parallel with like minded-people, is just more fun than working alone! Everybody who can contribute is welcome to join! For a list of items that need work, check out the community maintained TODO list (http://wiki.xen.org/wiki/Xen_Document_Days/TODO &lt;http://wiki.xen.org/wiki/Xen_Document_Days/TODO&gt;). Of course, you can work on anything you like: the list just provides s</pre> Lars Kurth 2012-05-25T21:13:23 http://comments.gmane.org/gmane.comp.emulators.xen.user/74279 <pre>Dear all, I have a PCIe device driver that I have been using on various Linux distributions and Kernel versions (2.6.x - 3.x.y) successfully all along. I recently set up a Xen environment with Linux Mint 12 and Xen Hypervisor 4.1. When I boot to Linux Mint, my driver still load (via insmod manually) successfully at Dom0 without any issue. I can do reads and write to the hardware device. But once booted to Xen, the driver failed to complete the driver load (via insmod manually) at Dom 0 and the console just hangs. From my debug messages, it appears it hangs because the driver doesn't receive any interrupt after a command is sent to the hardware device by writing a parameter to the mapped register. Once that register is written, the device is expected to DMA the command from the buffer allocated by the driver. The things that I can only think of that might have caused the problem are 1) IRQ mapping issue, or 2) DMA mapping issue, which I am not sure. What the driver does: Set up a command buffer: Bu</pre> Kenneth Wong 2012-05-23T23:40:08 http://comments.gmane.org/gmane.comp.emulators.xen.user/74276 <pre> Hi, I installed xen using yum in fedora 16. When I boot grub shows me a lot xen botting options. Are the all same or have different funtionality? also in xl info I have xen_changeset : unavailable, what does it mean? I also can not copy host CPU configuration in guest, it gives Error copying host CPU: No host CPU reported in capabilities Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/details.py", line 1779, in config_cpu_copy_host CPU.copy_host_cpu() File "/usr/lib/python2.7/site-packages/virtinst/CPU.py", line 185, in copy_host_cpu raise ValueError(_("No host CPU reported in capabilities")) ValueError: No host CPU reported in capabilities Regards, Arindam _______________________________________________ Xen-users mailing list Xen-users&lt; at &gt;lists.xen.org http://lists.xen.org/xen-users</pre> Arindam Choudhury 2012-05-25T11:06:08 http://comments.gmane.org/gmane.comp.emulators.xen.user/74267 <pre>Hopefully this is a very simple thing to answer, BUT I have one computer running Xen 4.2-unstable and once you create a VM using the "xl create" command, it creates that VM as well as opens a new VNC port to it. I than use TightVNC from a second computer running WInXP to connect to the newly created VM on the server. Now, my question is that as that VNC connections disconnects a LOT during the process of reboots and doing updates and etc and have to reconnect so often, HOW to or is there a simple way to create a persistent VNC connection to the VM no matter what it is doing as long as you do not run the "xl destroy" command on the server, you will still see the VM Console? Does such a thing have to do with some setting on the Xen server? or it is something with the TightVNC program running on WinXP that is making it disconnect? </pre> cyberhawk001< at >gmail.com 2012-05-24T20:54:10 http://comments.gmane.org/gmane.comp.emulators.xen.user/74266 <pre>Hi Guys, I installed xcp1.5 in hp proliant. I am using openxenmanager to manage vm. But I am unable to do it. Because in virtualization State tools not installed am getting . And console is also not coming. Could you please provide me any idea. </pre> Jitendra Bhaskar 2012-05-24T17:34:47 http://comments.gmane.org/gmane.comp.emulators.xen.user/74260 <pre>Dear all, I have a PCIe device driver that I have been using on various Linux distributions and Kernel versions (2.6.x - 3.x.y) successfully all along. I recently set up a Xen environment with Linux Mint 12 and Xen Hypervisor 4.1. When I boot to Linux Mint, my driver still load (via insmod manually) successfully at Dom0 without any issue. I can do reads and write to the hardware device. But once booted to Xen, the driver failed to complete the driver load (via insmod manually) at Dom 0 and the console just hangs. From my debug messages, it appears it hangs because the driver doesn't receive any interrupt after a command is sent to the hardware device by writing a parameter to the mapped register. Once that register is written, the device is expected to DMA the command from the buffer allocated by the driver. The things that I can only think of that might have caused the problem are 1) IRQ mapping issue, or 2) DMA mapping issue, which I am not sure. What the driver does: Set up a command buffer: Bu</pre> Kenneth Wong 2012-05-23T23:49:11 http://comments.gmane.org/gmane.comp.emulators.xen.user/74256 <pre>Hi, Could someone using NFS tell of how their setup is? And what are the NFS mount point options? Thanks in advance. -- Jude Pereira judepereira&lt; at &gt;7terminals.com _______________________________________________ Xen-users mailing list Xen-users&lt; at &gt;lists.xen.org http://lists.xen.org/xen-users</pre> Jude Pereira 2012-05-23T17:22:15 http://comments.gmane.org/gmane.comp.emulators.xen.user/74251 <pre>Hi list, Is there a simple way to find out the memory space addresses in RAMthat is used by a running domU? I would like to have the physical addresses so that I can manipulate and write directly to the domU RAM from the dom0. Can anyone help me? Thank you!!! </pre> Sebastian Biedermann 2012-05-23T08:55:40 http://comments.gmane.org/gmane.comp.emulators.xen.user/74250 <pre>Hi, I'm having trouble setting up xen. Our VMs are on an NFS mount point. /var/lib/nfs/xen_storage is mounted over NFS If I cd to that directory, and I do a simple dd benchmark, it writes at 112 MB/s, The VM files are located here, they are preallocated from /dev/zero. If I start one DomU, the write speed inside that VM is ~7 MB/s(measured via dd). What could be the cause of this? If the VM is on local storage, then the write speeds are perfect(80 MB/s), but when they are over an NFS, they write very very slow. It certainly is not a NFS issue, as I can write to it at 112 MB/s, in a mounted directory. Any help is appreciated, Thanks in Advance, Jude _______________________________________________ Xen-users mailing list Xen-users&lt; at &gt;lists.xen.org http://lists.xen.org/xen-users</pre> Jude Pereira 2012-05-23T08:49:48 http://comments.gmane.org/gmane.comp.emulators.xen.user/74248 <pre>Hi, all: I installed Xen 4.1.2 compiled from source, Dom0 is CentOS 6.2, using Linux kernel 3.4.0 compiled from source, after the rt-patch. Now I want to boot DomU using the patched Dom0 Kernel, my configuration file looks like: name="vm1" vcpus=1 cpus="1" memory=512 disk=['file:/home/xisisu/Desktop/VM/vm1.img,xvda,w'] vif=['bridge=eth0'] kernel="/boot/vmlinuz-3.4.0-rt7" extra="ro root=/dev/mapper/vg_null001cc0b1994f-lv_root rd_NO_LUKS rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8 rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM" on_reboot='restart' on_crash='restart' The item in menu.lst looks like: title CentOS (3.4.0-rt7) root (hd0,0) kernel /vmlinuz-3.4.0-rt7 ro root=/dev/mapper/vg_null001cc0b1994f-lv_root rd_NO_LUKS rd_LVM_LV=vg_null001cc0b1994f/lv_swap LANG=en_US.UTF-8 rd_LVM_LV=vg_null001cc0b1994f/lv_root rd_NO_MD quiet SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM </pre> Sisu Xi 2012-05-23T05:27:52 http://comments.gmane.org/gmane.comp.emulators.xen.user/74243 <pre>One of my customers handed me a copy of this paper and asked why are we using xen if it is so slow... http://morse.colorado.edu/~tlen5710/12s/VMware.pdf which is a fairly damning report of performance under Xen in comparison to VMWare, citing worse than 50% overhead of Xen in comparison to physical. Has anyone seen this paper before? James </pre> James Harper 2012-05-23T01:03:06 http://comments.gmane.org/gmane.comp.emulators.xen.user/74237 <pre>Hi, I did a master-failed test with 3 PCs.All of the PCs are installed with XCP V1. What I am going to do is that how to shutdown a slave when master of pool failed. I set up a pool included the PCs,and I hard poweroff the master.I typed "poweroff" in CLI of slaves.But the slaves didn't shutdown.They sticked in "Storing network configuration". I just want the slave that can be shutdown correctly when the master failed. Please help me. Best regards, Jack </pre> 崔智经 2012-05-22T09:37:53 http://comments.gmane.org/gmane.comp.emulators.xen.user/74232 <pre>Hi, Having a problem getting a domu to boot correctly. When I enter xl create guest it boots straight into grubdom. If I enter the config location in grubdom t boots as expected. The location of the grub.cfg is the same in my domu config as what in entering but just will not work. Any ideas? Ian . </pre> Ian Tobin 2012-05-21T17:57:01 http://comments.gmane.org/gmane.comp.emulators.xen.user/74226 <pre>Hi! I tried to switch the XEN toolstack from xm to xl, but discovered that my DomU was without network access. Versions and configurations: Dom0 and DomU kernel: self-compiled 3.3.6 Dom0 and DomU distribution: Debian testing XEN version: 4.1.2 /etc/network/interfaces in Dom0 contains two bridge configurations: xenbr0 with the physical interface eth0 and xenbr1 with eth1. The network configuration of the DomU has the line: vif = [ 'mac=00:16:3e:00:00:11, bridge=xenbr0', 'mac=00:16:3e:00:00:12, bridge=xenbr1' ] /etc/xen/xl.conf contains the line: vifscript="vif-bridge" DomU boots without problems, but doesn’t have network access. „brctl show” shows that the vif interfaces of DomU are not attached to the bridge. I don’t see anything in the logs that the vif-bridge script is called, but I don’t see error messages as well. Switching back to xm solves the problem for now. Any hints to solve this problem are welcome. Shade and sweet water! Stephan </pre> Stephan Seitz 2012-05-21T15:50:53 http://comments.gmane.org/gmane.comp.emulators.xen.user/74224 <pre>Hello, I want to try xen on my laptop but I can't start xend because /proc/xen doesn't get mounted. The system is gentoo and xen-tools version 4.1.1-r6. I use vaniila 3.4.0 (3.3.6 dosn't work also). ierdnac-hp ~ # uname -a Linux ierdnac-hp 3.4.0 #1 SMP PREEMPT Mon May 21 17:34:09 EEST 2012 x86_64 Intel(R) Core(TM) i3 CPU M 380 &lt; at &gt; 2.53GHz GenuineIntel GNU/Linux ierdnac-hp ~ # dmesg|grep -i xen XENFS: not registering filesystem on non-xen platform The config file for dom0 kernel: # # Automatically generated file; DO NOT EDIT. # Linux/x86_64 3.4.0 Kernel Configuration # CONFIG_64BIT=y # CONFIG_X86_32 is not set CONFIG_X86_64=y CONFIG_X86=y CONFIG_INSTRUCTION_DECODER=y CONFIG_OUTPUT_FORMAT="elf64-x86-64" CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig" CONFIG_GENERIC_CMOS_UPDATE=y CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_ARCH_CLOCKSOURCE_DATA=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_HAVE_LATENCYTOP_SUPPORT=y CONFIG_</pre> Andrei Popa 2012-05-21T14:46:34 http://comments.gmane.org/gmane.comp.emulators.xen.user/74223 <pre>Hi, I have a number of clients looking to replace VMware with Xen. Their main concern is what level of support can they expect to receive. Could you give a summary of the levels of support that are available? Best regards, Patrick. _______________________________________________ Xen-users mailing list Xen-users&lt; at &gt;lists.xen.org http://lists.xen.org/xen-users</pre> Patrick Leith 2012-05-21T13:23:16 http://comments.gmane.org/gmane.comp.emulators.xen.user/74220 <pre>Hi all, I have a following problem: - Remus network buffering doesn't work. It seems to be because of no vif is reported by the function server.xend.domain on line 29 of /usr/local/lib/python2.7/dist-packages/xen/remus/vm.py (seen using pdb) : 27 if domid: 28 try: 29 self.dominfo = server.xend.domain(domid, 'all') -&gt; if self.dominfo: (Pdb) print self.dominfo ['domain', ['domid', 2], ['cpu_weight', 256], ['cpu_cap', 0], ['pool_name', 'Pool-0'], ['bootloader', ''], ['vcpus', 1], ['cpus', [[0, 1]]], ['on_poweroff', 'destroy'], ['on_crash', 'restart'], ['uuid', 'be52df45-4a7e-48ab-a101-3f6693d0ecf4'], ['bootloader_args', ''], ['name', ' fsb.t.org'], ['on_reboot', 'restart'], ['maxmem', 129], ['memory', 128], ['shadow_memory', 0], ['features', ''], ['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], ['start_time', 1337550697.86], ['cpu_time', 4.62718796], ['online_vcpus', 1], ['image', ['linux', ['kernel', ''], ['superpages', 0], ['nomigrate', 0], ['tsc_mode', 0]]],</pre> Little Vaerivatnet 2012-05-20T23:12:53 http://comments.gmane.org/gmane.comp.emulators.xen.user/74215 <pre>I have had Xen 4.2-Unstable compiled a week or so ago and it all went fine and running, but i forget what revision i compiled now. When i ran the *xl create /etc/xen/win7.cfg* to create a VM, i got an error about libxl and running "*sudo xl list*" shows the newly created VM, SO i just ignored that error for now. That error message was: *libxl: error: libxl.c:3117:libxl_sched_credit_domain_set: Cpu weight out of range, valid values are within range from 1 to 65535 * ---------------------------------- ---------------------------------- ---------------------------------- SO, I noticed on the xen-unstable.hg tree that there have been a lot of updates to the libxl lately SO just out of curiosity, i wanted to get the latest revision 25374 of xen-unstbale as of today 5/20/2012, and compile it. BUT, i cannot compile Xen anymore as the compile stops with warnings and error messages. Upon scrolling up in the terminal window, i noticed these warning or error messages: *node-select.c:57:6: warning: functi</pre> cyberhawk001< at >gmail.com 2012-05-20T16:23:43 http://comments.gmane.org/gmane.comp.emulators.xen.user/74206 <pre>Hi, I have successfully setup and are running Xen 4.0.3 on Ubuntu 10.04 (Kernel 2.6.32 from Jeremy's branch). However, the server failed to power down gracefully with Xen multi-boot (e.g. using shutdown or poweroff commands), it turned out to reboot instead. When booting to the kernel alone without multi-boot, the server could power down gracefully. I hope someone could point me how to power down the server gracefully when using Xen multi-boot options. Thanks a lot. John Mok </pre> John Mok 2012-05-18T14:21:07 http://comments.gmane.org/gmane.comp.emulators.xen.user/74205 <pre>Hi, I have successfully setup Xen 4.0.3 on Ubuntu 10.04 (Kernel 2.6.32 from Jeremy's branch). However, the server failed to shutdown gracefully when using Xen multi-boot, it turned out to reboot instead. When booting to the kernel alone without multi-boot, the server could shutdown gracefully. I hope someone could point me how to shutdown the server gracefully when using Xen multi-boot options. Thanks a lot. John Mok </pre> John Mok 2012-05-17T14:59:46 http://comments.gmane.org/gmane.comp.emulators.xen.user/74204 <pre>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" option. For instance if I use memory=512, as I use a higher value for maxmem, I lose more memory according to "free" in the guest. I lose about 200MB (nearly half the memory!) if I have a maxmem of 8GB and even more when it is higher. I have looked around and couldn't find any mention of maxmem taking a chunk out of the memory by design. Would anybody be able to shed any light on this? I have tested this with both Xen 4.0.1 and 4.1.2, and Kernel version 2.6.32 Phil. </pre> Phil Evans 2012-05-15T11:42:34 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.emulators.xen.user