High CPU use on host by idle Windows 7 guest

Hi, I have gotten Windows 7 to install and boot on KVM now, but now I'm having another problem: The qemu process that the Windows guest is running in is constantly using about 27% of one cpu core when idle (more when not, obviously). This is a fresh install of Windows 7 Professional with SP1 d

Re: Internal error, emulation failure when trying to boot Win7 install

On Wednesday 08 January 2014 19:40:10 Marcelo Tosatti wrote: >On Tue, Jan 07, 2014 at 07:48:41PM +0100, Guido Winkelmann wrote: >> Hi, >> >> When trying to boot a Windows 7 install from a local virtual disks, qemu >> stops with the messages: >> >> KVM i

Re: Internal error, emulation failure when trying to boot Win7 install

didn't show an error message that would tell me what is actually wrong, though. Guido On Tuesday 07 January 2014 19:48:41 Guido Winkelmann wrote: >Hi, > >When trying to boot a Windows 7 install from a local virtual disks, qemu >stops with the messages: > >KVM inte

Internal error, emulation failure when trying to boot Win7 install

Hi, When trying to boot a Windows 7 install from a local virtual disks, qemu stops with the messages: KVM internal error. Suberror: 1 emulation failure I've started qemu with libvirt. This is the output from libvirt's logfile: 2014-01-07 18:22:10.988+: starting up LC_ALL=C PATH=/bin:/sbin

Re: I/O errors in guest OS after repeated migration

Am Montag, 29. Oktober 2012, 12:29:01 schrieb Stefan Hajnoczi: > On Fri, Oct 19, 2012 at 2:55 PM, Guido Winkelmann > wrote: > > Am Donnerstag, 18. Oktober 2012, 18:05:39 schrieb Avi Kivity: > >> On 10/18/2012 05:50 PM, Guido Winkelmann wrote: > >> > Am Mittwoch, 1

Re: I/O errors in guest OS after repeated migration

Am Donnerstag, 18. Oktober 2012, 18:05:39 schrieb Avi Kivity: > On 10/18/2012 05:50 PM, Guido Winkelmann wrote: > > Am Mittwoch, 17. Oktober 2012, 13:25:45 schrieb Brian Jackson: > >> On Wednesday, October 17, 2012 10:45:14 AM Guido Winkelmann wrote: > >> > vda1, lo

Re: I/O errors in guest OS after repeated migration

Am Mittwoch, 17. Oktober 2012, 13:25:45 schrieb Brian Jackson: > On Wednesday, October 17, 2012 10:45:14 AM Guido Winkelmann wrote: > > vda1, logical block 1858771 > > Oct 17 17:12:04 localhost kernel: [ 212.070600] Buffer I/O error on > > device > > vda1, logical blo

Re: I/O errors in guest OS after repeated migration

Am Dienstag, 16. Oktober 2012, 12:44:27 schrieb Brian Jackson: > On Tuesday, October 16, 2012 11:33:44 AM Guido Winkelmann wrote: > > The commandline, as generated by libvirtd, looks like this: > > > > LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin > &g

Re: I/O errors in guest OS after repeated migration

Am Dienstag, 16. Oktober 2012, 12:44:27 schrieb Brian Jackson: > On Tuesday, October 16, 2012 11:33:44 AM Guido Winkelmann wrote: [...] > > The commandline, as generated by libvirtd, looks like this: > > > > LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin &g

I/O errors in guest OS after repeated migration

Hi, I'm experiencing I/O errors in a guest machine after migrating it from one host to another, and then back to the original host. After doing this, I find the following in the dmesg output of the guest machine: [ 345.390543] end_request: I/O error, dev vda, sector 273871 [ 345.391125] end_r

Re: Nested virtualization on Intel does not work - second level freezes when third level is starting

Am Mittwoch, 11. April 2012, 20:37:56 schrieb Guido Winkelmann: > Am Mittwoch, 11. April 2012, 17:25:12 schrieb Orit Wasserman: > > On 04/11/2012 04:43 PM, Guido Winkelmann wrote: > > > Am Mittwoch, 11. April 2012, 16:29:55 schrieben Sie: > > >> I'm not sure i

Re: Nested virtualization on Intel does not work - second level freezes when third level is starting

Am Mittwoch, 11. April 2012, 17:25:12 schrieb Orit Wasserman: > On 04/11/2012 04:43 PM, Guido Winkelmann wrote: > > Am Mittwoch, 11. April 2012, 16:29:55 schrieben Sie: > >> I'm not sure if this is the problem but I noticed that the second layer > >> and > >

Re: Nested virtualization on Intel does not work - second level freezes when third level is starting

Am Mittwoch, 11. April 2012, 23:14:07 schrieb Kashyap Chamarthy: > On Wed, Apr 11, 2012 at 6:14 PM, Guido Winkelmann > wrote: [...] > Here is my complete notes on nested virtualization w/ Intel -- > http://kashyapc.wordpress.com/2012/01/14/nested-virtualization-with-kvm-inte > l/

Re: Nested virtualization on Intel does not work - second level freezes when third level is starting

Am Mittwoch, 11. April 2012, 17:25:12 schrieben Sie: > On 04/11/2012 04:43 PM, Guido Winkelmann wrote: > > Am Mittwoch, 11. April 2012, 16:29:55 schrieben Sie: > >> I'm not sure if this is the problem but I noticed that the second layer > >> and > >> the

Re: Nested virtualization on Intel does not work - second level freezes when third level is starting

Am Mittwoch, 11. April 2012, 17:38:14 schrieb Nadav Har'El: > On Wed, Apr 11, 2012, Guido Winkelmann wrote about "Nested virtualization on > Intel does not work - second level freezes when third level is starting": > > Nested virtualization on Intel does not work fo

Re: Nested virtualization on Intel does not work - second level freezes when third level is starting

Am Mittwoch, 11. April 2012, 16:29:55 schrieben Sie: > I'm not sure if this is the problem but I noticed that the second layer and > the third layer have the same memory size (8G), how about trying to reduce > the memory for the third layer ? I tried reducing the third layer to 1G. That didn't cha

Nested virtualization on Intel does not work - second level freezes when third level is starting

Hi, Nested virtualization on Intel does not work for me with qemu-kvm. As soon as the third layer OS (second virtualised) is starting the Linux kernel, the entire second layer freezes up. The last thing I can see console of the third layer system before it freezes is "Decompressing Linux... ".

SPEC-file for making RPMs (with rpmbuild)

Hi, Is there a spec-file somewhere for creating RPMs from the newest qemu-kvm release? Regards, Guido -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

Re: KVM, iSCSI and High Availability

Am Thursday 31 March 2011 schrieben Sie: > That's what CLVM is for, it propagates the volume changes to every member > of the 'cluster'. Oh, right. I didn't know about clvm until now. It sounds very promising though, certainly better than working with the proprietary API of whoever your SAN-vend

Re: KVM, iSCSI and High Availability

Am Monday 28 March 2011 schrieb David Martin: > - Original Message - > > > On 3/28/11 2:46 PM, Avi Kivity wrote: > > > On 03/25/2011 10:26 PM, Marcin M. Jessa wrote: > > [...] > > > > > One LUN per image allows you to implement failover, LVM doesn't (but > > > cluster-LVM does). I recomme

Re: Virtual SCSI disks hangs on heavy IO

Am Wednesday 16 March 2011 schrieb Stefan Hajnoczi: > On Tue, Mar 15, 2011 at 1:20 PM, Guido Winkelmann > > wrote: > > Am Tuesday 15 March 2011 schrieben Sie: > >> On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann > >> > >> wrote: > >> >

Re: Virtual SCSI disks hangs on heavy IO

Am Tuesday 15 March 2011 schrieben Sie: > On Mon, Mar 14, 2011 at 10:57 PM, Guido Winkelmann > > wrote: > > On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: > >> On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann > >> > >> wrote: > >> &

Re: Virtual SCSI disks hangs on heavy IO

On Monday 14 March 2011 20:32:23 Stefan Hajnoczi wrote: > On Mon, Mar 14, 2011 at 6:05 PM, Guido Winkelmann > > wrote: > > Does anybody have an idea what might cause this or what might be done > > about it? > > The lsi_scsi emulation code is incomplete. It does n

Virtual SCSI disks hangs on heavy IO

Hi, I am experiencing hangs in disk IO in systems hosted inside a virtual KVM machine. When the virtual system disk is SCSI and when I am doing a lot of I/O on it, I will eventually get error messages on the console and in dmesg like these: sd 0:0:0:0: [sda] ABORT operation started sd 0:0:0:0:

Re: Cannot start new VMs when the host system is under load

I just noticed that if I leave off the -nodefaults from the qemu command line, the guest will reliably start up again. I don't know what reasons the libvirt developers had for putting it there, though... -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message t

Cannot start new VMs when the host system is under load

Hi, I've got a problem where I cannot start any new VMs with KVM if the host machine is under high CPU load. The problem is not 100% reproducible (it works sometimes), but under load conditions, it happens most of the time - roughly 95%. I'm usually using libvirt to start and stop KVM VMs. Whe

Re: Virtual disks with SCSI or virtio hang after some time

Am Dienstag, 1. Juni 2010 schrieben Sie: > On 06/01/2010 06:59 PM, Guido Winkelmann wrote: > > The host OS is Fedora Core 12, with qemu-kvm 0.11.0 > > Please try with at least qemu-kvm-0.11.1, preferably qemu-kvm-0.12.4. > Also use Linux 2.6.32.latest in the guest. Okay,

Virtual disks with SCSI or virtio hang after some time

Hi, When using KVM machines with virtual disks that are hooked up to the guest via either virtio or SCSI, the virtual disk will often hang completely after a short time of operation. When this happens, the network connectivity of the machine will usually go down, too. (I.e. it stops responding