chris | 1 Sep 03:54
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PV OR HVM?

Hello Guy's

I want to thank everyone out there that has given me there input on using xen. I want to ask what you give close to native speed when you using linux as a domU. Would pv be faster then Hardware virtualization using xen or paravirtual is faster because it works with xen kenern in a dom0? Just let eveyone know my servers can do both hvm and para-virtualization

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Fajar A. Nugraha | 1 Sep 04:25

Re: paravirtualization on linux domU

On Mon, Aug 31, 2009 at 7:54 PM, Nick Couchman<Nick.Couchman <at> seakr.com> wrote:
> Actually, the three Linux distributions that I deal with on a regular basis
> - CentOS 5, OpenSuSE 10.3/11.1, and SLES10 - do have -xen kernels included
> on the CD/DVD distribution media.

Good to know then :)

> Now, it still takes a little bit of work
> to get that kernel to boot correctly for a PV domU installation, but it does
> work.  The virt-install graphical management tool will look for the -xen
> kernel RPM on install media like CD/DVD and extract and boot it in order to
> kick off the install.  If you're using the command line, though, you'll have
> to accomplish this by hand.

Can you point to a howto on this?

--

-- 
Fajar
Boris Derzhavets | 1 Sep 06:36
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Re: Serail output of Ubuntu 9.10 PV DomU hangs just before login promt

Thanks for pointing me to /etc/init/tty1.conf..  Usual schema works just fine for HVM image created via virt-install at Xen 3.4.1 F11 Dom0 with libvirt 0.7.0-6 installed.

Boris.
P.S.. Your picture at front page of new site looks nice.

--- On Mon, 8/31/09, Fajar A. Nugraha <fajar <at> fajar.net> wrote:

From: Fajar A. Nugraha <fajar <at> fajar.net>
Subject: Re: [Xen-users] Serail output of Ubuntu 9.10 PV DomU hangs just before login promt
To: "Boris Derzhavets" <bderzhavets <at> yahoo.com>
Cc: xen-users <at> lists.xensource.com
Date: Monday, August 31, 2009, 2:39 AM

On Mon, Aug 31, 2009 at 1:29 PM, Boris Derzhavets<bderzhavets <at> yahoo.com> wrote:
> I try to reproduce standard trick , worked fine on Jaunty, Intrepid Servers,
> create HVM DomU and then utilize it's  image divice for loading PV DomU
> via pygrub simple profile. HVM image already has kernel with Xen DomU
> support installed (2.6.28(9)). Not much contributed from Canonical this
> support merged mainline linux a while ago. This time on Karmic (alpha 4) it
> fails.


Ah :D

I was using debootstrap. I got login prompt after I create /etc/init/hvc0.conf.

A little note though: it works ONLY if I disable PV frame buffer on
Xen config file. When I enable it, no output on frame buffer, and text
console stopped on

* Setting preliminary keymap....                                         [ OK ]
* Starting kernel event manager...
         [    2.638344] udev: starting version 146
                                                                         [ OK ]
* Loading hardware drivers...
         [    2.707820] Initialising Xen virtual ethernet driver.

This behavior is similar with my previous experiment on 2.6.30.5 +
busybox. I'm guessing vanilla pv_ops kernel still have problems with
PV frame buffer?

--
Fajar

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RE: XEN guest VM config issue for windows 2003 installation

A machine reboot fixed this issue !!!
Not sure what was wrong before...

-Madhu

> -----Original Message-----
> From: Madhu Venugopal (vmadhu)
> Sent: Monday, August 31, 2009 10:37 AM
> To: Xen User-List
> Cc: 'Fajar A. Nugraha'
> Subject: XEN guest VM config issue for windows 2003 installation
> 
> Hi,
> 
> Am trying to install windows 2003 server as a guest VM over
> Xen 3.4.1 (installed on Fedora 11). When I executed "xm create",
> It fails with the error message :
> 
> "Error: Domain 'win2k' does not exist."
> 
> Upon digging deeper, I could find that Qemu-dm fails for the
> Following reason :
> 
> <qemu-dm-logs>
> 
> 	domid: 48
> 	qemu: the number of cpus is 4
> 	-append only allowed with -kernel option
> 
> <qemu-dm-logs>
> 
> That Configuration that I Fed to XM Create :
> 
> <config>
> 
> 	kernel='/usr/lib/xen/boot/hvmloader'
> 	builder='hvm'
> 	memory='3092'
> 	device_model='/usr/lib/xen/bin/qemu-dm'
> 	apic=1
> 	acpi=1
> 
> 	root='/dev/cciss/c0d0p2'
> 	disk = [
> 'file:/home/xen/domains/win2003/win2003.img,ioemu:hda,w',
> 'file:/home/xen/domains/win2003/win-install-cd1.iso,hdb:cdrom,r']
> 
> 	# Hostname
> 	name = 'win2k'
> 	cpus = "0-4"
> 	vcpus=4
> 
> <config>
> 
> Relevant Xend failure logs attached.
> 
> Can someone help spot the error in the configuration ?
> Have a few specific questions :
> 
> 1. Is the "root" configuration option important ? I see different
> errors including
>    it and excluding the same.
> 2. I suspect the "disk" configuration as well. I tried various
> different options,
>    But all of them failed.
> 
> Not sure if it is anything to do with the CCISS drivers again.
> 
> Can someone pls help ?
> 
> Thanks,
> Madhu
> 
> <xend-logs>
> 
> 	[2009-08-31 00:10:18 4412] DEBUG (DevController:97)
> DevController: writing {'domain': 'win2k', 'frontend':
> '/local/domain/48/device/vbd/832', 'uuid': '4886d8b6-80e2-c3b7-68ae-
> d6845a0f8ea0', 'bootable': '0', 'dev': 'hdb', 'state': '1', 'params':
> '/home/xen/domains/win2003/win-install-cd1.iso', 'mode': 'r',
'online':
> '1', 'frontend-id': '48', 'type': 'file'} to
> /local/domain/0/backend/vbd/48/832.
> 
> [2009-08-31 00:10:18 4412] INFO (image:394) spawning device models:
> /usr/lib/xen/bin/qemu-dm ['/usr/lib/xen/bin/qemu-dm', '-d', '48', '-
> domain-name', 'win2k', '-videoram', '4', '-sdl', '-vcpus', '4', '-
> append', 'root=/dev/cciss/c0d0p2 ', '-boot', 'd', '-acpi', '-net',
> 'none', '-M', 'xenfv']
> 
> [2009-08-31 00:10:18 4412] INFO (image:443) device model pid: 12682
> [2009-08-31 00:10:18 4412] INFO (image:531) waiting for sentinel_fifo
> [2009-08-31 00:10:18 4412] WARNING (image:493) domain win2k: device
> model failure: pid 12682: exited with nonzero status 1; see
> /var/log/xen/qemu-dm-win2k.log
> 
> [2009-08-31 00:10:18 4412] DEBUG (XendDomainInfo:3052) Storing VM
> details: {'on_xend_stop': 'ignore', 'shadow_memory': '29', 'uuid':
> '1afc521c-aee0-5261-cb14-260174fd0162', 'on_reboot': 'restart',
> 'start_time': '1251702618.68', 'on_poweroff': 'destroy',
> 'bootloader_args': '', 'on_xend_start': 'ignore', 'on_crash':
> 'restart', 'xend/restart_count': '0', 'vcpus': '4', 'vcpu_avail':
'15',
> 'bootloader': '', 'image': "(hvm (kernel ) (args
> 'root=/dev/cciss/c0d0p2 ') (timer_mode 1) (videoram 4) (vpt_align 1)
> (nographic 0) (hpet 0) (rtc_timeoffset 0) (loader
> /usr/lib/xen/boot/hvmloader) (pci ()) (pci_msitranslate 1)
> (guest_os_type default) (apic 1) (sdl 1) (xen_platform_pci 1) (hap 1)
> (monitor 0) (device_model /usr/lib/xen/bin/qemu-dm) (boot d)
> (pci_power_mgmt 0) (display :1.0) (pae 1) (stdvga 0) (usb 0)
> (xauthority /root/.Xauthority) (isa 0) (viridian 0) (acpi 1)
(vncunused
> 1) (localtime 0) (notes (SUSPEND_CANCEL 1)))", 'name': 'win2k'}
> [2009-08-31 00:10:18 4412] DEBUG (XendDomainInfo:1622) Storing domain
> details: {'console/port': '6', 'cpu/3/availability': 'online', 'name':
> 'win2k', 'console/limit': '1048576', 'store/port': '5',
> 'cpu/2/availability': 'online', 'vm': '/vm/1afc521c-aee0-5261-cb14-
> 260174fd0162', 'domid': '48', 'image/suspend-cancel': '1',
> 'cpu/0/availability': 'online', 'memory/target': '3166208',
> 'control/platform-feature-multiprocessor-suspend': '1', 'store/ring-
> ref': '1044476', 'cpu/1/availability': 'online', 'console/type':
> 'ioemu'}
> [2009-08-31 00:10:18 4412] WARNING (XendDomainInfo:1878) Domain has
> crashed: name=win2k id=48.
> 
> <xend-logs>
Vipul.B | 1 Sep 09:29
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Re: On top of cluster

Hi,
Thanks for earlier mail.

Actually we are having High performance  linux red hat cluster which
running on Rocks cluster suite.
So whether i can run Xen on top of this type of cluster.

One more question i need to ask.
Can i make Single Xen installation to run on all nodes of cluster so that
i have single Virtual machine having multiple guest OS installed on it? Is
this case possible.

Sorry if my question creates any confusion.

Thanks
Vipul

> Vipul,
>
> Are you referring to a high-availability cluster, like Red Hat Cluster
> Suite?  If so, I can tell you that we are running 100+ guests across 10+
> Xen
> servers using file-based guest images stored on a GFS2 file system on a
> shared iSCSI LUN.  So, yes, you can run Xen "on top" of a cluster layer
> like
> this.
>
> -Dustin
>
>
> On Mon, Aug 31, 2009 at 7:34 AM, Vipul.B <vipulb <at> cdacb.ernet.in> wrote:
>
>> Hi all ,
>>        I am new to Xen. I want to ask a general question.
>> Is it possible to install Xen on top of cluster software. So that i can
>> run multiple guest OS on top of cluster layer. This way i don't have to
>> disturb the underlying cluster configuration.
>>
>> Thanks
>> Vipul
>>
>> --
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>> dangerous content by MailScanner, and is
>> believed to be clean.
>>
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users <at> lists.xensource.com
>> http://lists.xensource.com/xen-users
>>
>
> --
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> believed to be clean.
>
>

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Martin Fernau | 1 Sep 11:43
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uninstalling GplPv 0.9.12-pre4 ends in bluescreen

Hello,

I need some advice how to completely remove the gplpv drivers from my windows 
2003 server. I just tried the uninstaller provided by James Harper from his 
post http://lists.xensource.com/archives/html/xen-users/2009-05/msg00555.html 
but I end up in a bluescreen after reboot and stuck at this point. 
As I used a lvm snapshot to test this uninstall process before, my system 
isn't broken in real. I can just create a new snapshot and try it again until 
it works. But I really need to remove these drivers so that I can boot again 
with the ioemu mode.

Any help would be appreciated!

Thanks,
Martin
James Harper | 1 Sep 11:58
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RE: uninstalling GplPv 0.9.12-pre4 ends in bluescreen

What BSoD are you getting? Is it 0x7B?

James

> -----Original Message-----
> From: xen-users-bounces <at> lists.xensource.com [mailto:xen-users-
> bounces <at> lists.xensource.com] On Behalf Of Martin Fernau
> Sent: Tuesday, 1 September 2009 19:43
> To: xen-users <at> lists.xensource.com
> Subject: [Xen-users] uninstalling GplPv 0.9.12-pre4 ends in bluescreen
> 
> Hello,
> 
> I need some advice how to completely remove the gplpv drivers from my
windows
> 2003 server. I just tried the uninstaller provided by James Harper
from his
> post
http://lists.xensource.com/archives/html/xen-users/2009-05/msg00555.html
> but I end up in a bluescreen after reboot and stuck at this point.
> As I used a lvm snapshot to test this uninstall process before, my
system
> isn't broken in real. I can just create a new snapshot and try it
again until
> it works. But I really need to remove these drivers so that I can boot
again
> with the ioemu mode.
> 
> Any help would be appreciated!
> 
> Thanks,
> Martin
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users <at> lists.xensource.com
> http://lists.xensource.com/xen-users
Martin Fernau | 1 Sep 12:08
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Re: uninstalling GplPv 0.9.12-pre4 ends in bluescreen

Yes, exaclty this BSoD is shown.

Martin

Am Dienstag 01 September 2009 schrieb James Harper:
> What BSoD are you getting? Is it 0x7B?
>
> James
>
> > -----Original Message-----
> > From: xen-users-bounces <at> lists.xensource.com [mailto:xen-users-
> > bounces <at> lists.xensource.com] On Behalf Of Martin Fernau
> > Sent: Tuesday, 1 September 2009 19:43
> > To: xen-users <at> lists.xensource.com
> > Subject: [Xen-users] uninstalling GplPv 0.9.12-pre4 ends in bluescreen
> >
> > Hello,
> >
> > I need some advice how to completely remove the gplpv drivers from my
>
> windows
>
> > 2003 server. I just tried the uninstaller provided by James Harper
>
> from his
>
> > post
>
> http://lists.xensource.com/archives/html/xen-users/2009-05/msg00555.html
>
> > but I end up in a bluescreen after reboot and stuck at this point.
> > As I used a lvm snapshot to test this uninstall process before, my
>
> system
>
> > isn't broken in real. I can just create a new snapshot and try it
>
> again until
>
> > it works. But I really need to remove these drivers so that I can boot
>
> again
>
> > with the ioemu mode.
> >
> > Any help would be appreciated!
> >
> > Thanks,
> > Martin
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users <at> lists.xensource.com
> > http://lists.xensource.com/xen-users
>
> _______________________________________________
> Xen-users mailing list
> Xen-users <at> lists.xensource.com
> http://lists.xensource.com/xen-users
James Harper | 1 Sep 12:13
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RE: uninstalling GplPv 0.9.12-pre4 ends in bluescreen

> 
> Yes, exaclty this BSoD is shown.
> 

Can you re-run the 0.9.x uninstaller and then open regedit and search
for any reference to xenhide (just in HKLM/System/CurrentControlSet) and
tell me what keys you find it in?

James
Martin Fernau | 1 Sep 12:34
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Re: uninstalling GplPv 0.9.12-pre4 ends in bluescreen

Sure:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E97D-E325-11CE-
BFC1-08002BE10318}
-> UpperFilters = XenHide
.. and serveral other key/values

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\ACPI_HAL\PNP0C08\0\Control
-> ActiveService = XenHide
.. and serveral other key/values

Thats all

Martin

Am Dienstag 01 September 2009 schrieb James Harper:
> Can you re-run the 0.9.x uninstaller and then open regedit and search
> for any reference to xenhide (just in HKLM/System/CurrentControlSet) and
> tell me what keys you find it in?
>
> James
>
> _______________________________________________
> Xen-users mailing list
> Xen-users <at> lists.xensource.com
> http://lists.xensource.com/xen-users

Gmane