Guest shutdown problems
by Christian Axelsson
Hello
I have a problem shutting down xen guests. Using xm shutdown guests get
shut down but gets stuck in state '---s-d' or sometimes '------'.
When trying to clone a domain when in this state (my original purpose of
the whole operation) I'll get the error:
[root@hydra virtinst--devel]# ./virt-clone -o minimal -n new_img -f
/var/lib/xen/images/new_img.img
ERROR: virDomainGetXMLDesc() failed failed Xen syscall
xenDaemonDomainDumpXMLByID failed to find this domain -490299505
The same errors occurs when for example trying to attach to the console
using virsh.
I have tried to use 'xm destroy' to kill the guest the hard way but it
has no effect - the state remains unchanged. I have also tried this on a
few different guest installations with the same result. A thing worth
noting is that the output from 'xm list --long' differs, I've attached
the out put pre boot, after boot and after shutdown. Note how all the
devices in the guests are missing after shutdown.
Both the hosts and the guests are fedora 8 installations.
Regards,
Christian Axelsson
smiler(a)lanil.mine.nu
[?1034h(domain
(domid 0)
(on_crash restart)
(uuid 00000000-0000-0000-0000-000000000000)
(bootloader_args )
(vcpus 2)
(name Domain-0)
(on_poweroff destroy)
(on_reboot restart)
(bootloader )
(maxmem 16777215)
(memory 1491)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(cpu_time 1644.84369405)
(online_vcpus 2)
(image (linux (kernel )))
(status 2)
(state r-----)
)
(domain
(domid 2)
(on_crash restart)
(uuid a7638797-e237-3891-5e64-390f828238ca)
(bootloader_args )
(vcpus 1)
(name minimal)
(on_poweroff destroy)
(on_reboot restart)
(bootloader /usr/bin/pygrub)
(maxmem 512)
(memory 512)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(start_time 1206360333.14)
(cpu_time 9.753408915)
(online_vcpus 1)
(image
(linux
(kernel )
(notes
(FEATURES
'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'
)
(VIRT_BASE 18446744071562067968)
(GUEST_VERSION 2.6)
(PADDR_OFFSET 18446744071562067968)
(GUEST_OS linux)
(HYPERCALL_PAGE 18446744071564189696)
(LOADER generic)
(SUSPEND_CANCEL 1)
(ENTRY 18446744071564165120)
(XEN_VERSION xen-3.0)
)
)
)
(status 2)
(state -b----)
(store_mfn 196619)
(console_mfn 196618)
(device
(vif
(bridge xenbr0)
(mac 00:16:3e:3f:93:b8)
(script vif-bridge)
(uuid 94afd732-920b-2e0b-b3d5-e79174754a80)
(backend 0)
)
)
(device
(vbd
(uname file:/var/lib/xen/images/minimal.img)
(uuid 8f4f4da3-5f8a-3fee-28e8-41dc49e876cd)
(mode w)
(dev xvda:disk)
(backend 0)
(bootable 1)
)
)
(device
(console
(protocol vt100)
(location 2)
(uuid 0046f2d3-058b-d524-9273-f1dac2ca950b)
)
)
)
[?1034h(domain
(domid 0)
(on_crash restart)
(uuid 00000000-0000-0000-0000-000000000000)
(bootloader_args )
(vcpus 2)
(name Domain-0)
(on_poweroff destroy)
(on_reboot restart)
(bootloader )
(maxmem 16777215)
(memory 1491)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(cpu_time 1648.92600832)
(online_vcpus 2)
(image (linux (kernel )))
(status 2)
(state r-----)
)
(domain
(domid 2)
(on_crash restart)
(uuid a7638797-e237-3891-5e64-390f828238ca)
(bootloader_args )
(vcpus 1)
(name minimal)
(on_poweroff destroy)
(on_reboot restart)
(bootloader /usr/bin/pygrub)
(maxmem 512)
(memory 512)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(start_time 1206360333.14)
(cpu_time 13.048743365)
(online_vcpus 1)
(image
(linux
(kernel )
(notes
(FEATURES
'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'
)
(VIRT_BASE 18446744071562067968)
(GUEST_VERSION 2.6)
(PADDR_OFFSET 18446744071562067968)
(GUEST_OS linux)
(HYPERCALL_PAGE 18446744071564189696)
(LOADER generic)
(SUSPEND_CANCEL 1)
(ENTRY 18446744071564165120)
(XEN_VERSION xen-3.0)
)
)
)
(status 0)
(state ---s-d)
(store_mfn 196619)
(console_mfn 196618)
)
[?1034h(domain
(domid 0)
(on_crash restart)
(uuid 00000000-0000-0000-0000-000000000000)
(bootloader_args )
(vcpus 2)
(name Domain-0)
(on_poweroff destroy)
(on_reboot restart)
(bootloader )
(maxmem 16777215)
(memory 1491)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(cpu_time 1635.21430615)
(online_vcpus 2)
(image (linux (kernel )))
(status 2)
(state r-----)
)
(domain
(on_crash restart)
(uuid a7638797-e237-3891-5e64-390f828238ca)
(bootloader_args )
(vcpus 1)
(name minimal)
(on_poweroff destroy)
(on_reboot restart)
(bootloader /usr/bin/pygrub)
(maxmem 512)
(memory 512)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(start_time 1206309092.82)
(cpu_time 0.0)
(image
(linux
(kernel )
(notes
(FEATURES
'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'
)
(VIRT_BASE 18446744071562067968)
(GUEST_VERSION 2.6)
(PADDR_OFFSET 18446744071562067968)
(GUEST_OS linux)
(HYPERCALL_PAGE 18446744071564189696)
(LOADER generic)
(SUSPEND_CANCEL 1)
(ENTRY 18446744071564165120)
(XEN_VERSION xen-3.0)
)
)
)
(status 0)
(device
(vif
(bridge xenbr0)
(mac 00:16:3e:3f:93:b8)
(backend 0)
(uuid 94afd732-920b-2e0b-b3d5-e79174754a80)
(script vif-bridge)
)
)
(device
(vbd
(uuid 8f4f4da3-5f8a-3fee-28e8-41dc49e876cd)
(bootable 1)
(driver paravirtualised)
(dev xvda:disk)
(uname file:/var/lib/xen/images/minimal.img)
(mode w)
(backend 0)
)
)
(device
(console
(protocol vt100)
(location 2)
(uuid 0046f2d3-058b-d524-9273-f1dac2ca950b)
)
)
)
15 years
problems with f9 guest on f8 dom0
by Matt Cowan
Anytime I shutdown or restart (the guest will successfully restart) an
f9 guest on an f8 dom0 it causes virt-manager to hang and virt-install
to fail. Attempts to restart virt-manager hang at "Connecting". no
luck restarting xend, libvirtd, or even xenstored, only solution I've
found is a dom0 reboot! Same problem on 2 different host systems,
different hardware, dom0 installed by different people. I have no
trouble with <=f8 guests on either of these boxes.
more details at
https://bugzilla.redhat.com/show_bug.cgi?id=429403#c7
I assume other people are successfully running f9 guests on f8 dom0?!
No one else having this issue?
thanks.
-matt
15 years, 7 months
Cannot start HVM DomU
by Robert Locke
This has newly started, so I am presuming that it is perhaps related to
some recently updated package on F8 in say the last week or so.
I have a WindowsXP DomU that when I try to start from virt-manager gives
the following error:
Error starting domain: virDomainCreate() failed POST operation failed:
(xend.err 'int argument required')
Details shows:
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/engine.py", line 472, in
run_domain
vm.startup()
File "/usr/share/virt-manager/virtManager/domain.py", line 379, in
startup
self.vm.create()
File "/usr/lib/python2.5/site-packages/libvirt.py", line 240, in
create
if ret == -1: raise libvirtError ('virDomainCreate() failed',
dom=self)
libvirtError: virDomainCreate() failed POST operation failed: (xend.err
'int argument required')
I have no idea what other information to supply or where to particularly
find it since this has generally "just worked" for the occasional
running of a Windows instance that I have needed for the last several
months.
Thanks for any help,
--Rob
15 years, 9 months
xen to kvm migration question
by Paul Wouters
Hi,
Although I was very happy with xen, it seems xen is losing out and kvm
is the way to go. I had two migration questions that I couldn't find
answers for.
1) Does kvm also run with para_virt (eg without VT capable cpu, but also
just to be slightly more effecient). virt-manager only gave me a qemu
option on my old amd64 cpu.
2) I boot all my xens using kernel+initrd outside a rootfs image, instead
of a bootable virtual disk. Is that possible with kvm, or will I be
stuck creating bootable disk images?
Paul
15 years, 9 months
PCI passthrough
by Andy Burns
I have an F8 dom0 (which could become a CentOS 5.2 dom0 if that would
make anything easier) I'd like an F9 domU to have access to a PCI DVB
tuner for a mythtv backend.
I understand that I need to add "pciback.hide=(XX:YY.Z)" and possibly
"pciback.permissive" to grub.conf for the dom0
How should I add the details of the corresponding "pci = ['XX:YY.Z']"
to the domU config?
I've looked in the documentation of the XML format at
http://libvirt.org/formatdomain.html
but can't see relevant tags.
15 years, 9 months
Alistair J McGhie/AE/DuPont is out of the office.
by Alistair J McGhie
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07/08/2008.
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15 years, 9 months
AUTO: Alex Upton is out of the office (returning 06/28/2008)
by Alex.Upton＠instinet.com
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15 years, 9 months
No Dom0 support in Fedora 9 and Fedora 8 EOL
by Martin Vuille
I'm putting together a virtualized server. I was planning to use
Fedora 9, until I found out that Fedora 9 won't run as a Dom0, so
I ended up using Fedora 8 instead.
I also learned that the standard EOL policy is to discontinue
support for release N one month after the release of release N+2.
Since Dom0 support isn't expected until Fedora 10, it sounds like
this means that I will have to upgrade my system in the first
month immediately following the release of Fedora 10, or lose
support. Neither option seems particularly reasonable to me.
Since upgrading from Fedora 8 to Fedora 9 isn't an option for
anyone using Xen, I am wondering if there is any plan to extend
Fedora 8's support period beyond the usual one month?
MV
15 years, 10 months
Xen guests on the local network
by Dustin Black
I find that Fedora 8 is using a DHCP service via libvirtd/qemu to assign
addresses to any guests that I create. I also see that libvirtd enables
ip forwarding and creates iptables entries to allow the Xen server to
act as a router for the guests.
I need to change this setup such that the guests appear on the same
network as the Xen server, and are able to receive DHCP assignments from
another server on the network.
It may be that I just haven't chosen the right terms to search for, but
I can't seem to find any documentation or reference to disabling or
bypassing the qemu dhcp assignment and libvirt routing. Any help would
be much appreciated.
-Dustin Black
15 years, 10 months
Does my kernel support svm?
by Martin Jürgens
Hi,
I read the Virtualization guide and installed a Xen kernel on my Fedora
8 system. The problem is that the Virtualization Guide says that I'd
issue
xm dmesg | grep SVM
to find out if my Kernel supports svm. It says the following:
# xm dmesg | grep SVM
(XEN) AMD SVM: ASIDs disabled.
(XEN) HVM: SVM enabled
(XEN) AMD SVM: ASIDs disabled.
As I can't select "hardware acceleration" in virt-manager I think that
it means that something's wrong and I currently can't use svm.
Does anyone have an idea about what's wrong?
Thank you,
Martin
15 years, 10 months
