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kvm guests are not able to restart

DISCUSSION Farkas Levente 3 participants 5 messages Sep 3, 2007 4 messages not in the archive KVM

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Farkas Levente

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#0 lore raw

hi,
i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and one x86_64 guests. but none of the guest are able to restart. ie. i login to the guests and restart it. it start's as normal reboot, but after the last command (shuting down md device) it's do nothing, but in virt-manager i see 50% load on the guest. the biggest problem currently i can't find any way to restart any guest's other then shutdown and use virt-manager and restart them:-(
what can be a problem? is it a known bug or it's just not working for me? thanks in advance.

my system:
kernel-2.6.18-8.1.8.el5
kernel-headers-2.6.18-8.1.8.el5
kmod-kvm-35-1.2.6.18_8.1.8.el5
kvm-35-1
libvirt-0.3.2-2
libvirt-python-0.3.2-2
python-virtinst-0.300.0-1
virt-manager-0.5.0-1
virt-top-0.3.2.5-1
virt-viewer-0.0.2-1

Signature · 7 lines
  Levente                               "Si vis pacem para bellum!"

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#2 lore raw
Quoted 9 lines · Farkas Levente

hi,
i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and one x86_64 guests. but none of the guest are able to restart. ie. i login to the guests and restart it. it start's as normal reboot, but after the last command (shuting down md device) it's do nothing, but in virt-manager i see 50% load on the guest. the biggest problem currently i can't find any way to restart any guest's other then shutdown and use virt-manager and restart them:-(
what can be a problem? is it a known bug or it's just not working for me?

It's known, but ATM there's no fix available. For more details see:
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/5651/focus=6003
and following mails.

Luca

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author
#4 lore raw
Quoted 11 lines · Luca
Quoted 9 lines · Farkas Levente

hi,
i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and one x86_64 guests. but none of the guest are able to restart. ie. i login to the guests and restart it. it start's as normal reboot, but after the last command (shuting down md device) it's do nothing, but in virt-manager i see 50% load on the guest. the biggest problem currently i can't find any way to restart any guest's other then shutdown and use virt-manager and restart them:-(
what can be a problem? is it a known bug or it's just not working for me?

Quoted 3 lines

It's known, but ATM there's no fix available. For more details see:
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/5651/focus=6003
and following mails.

is this really true? this means kvm are not usable any real environment since imho the feature to be able to reboot a server is essential!

Signature · 7 lines
  Levente                               "Si vis pacem para bellum!"

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#6 lore raw
Quoted 14 lines · Farkas Levente
Quoted 12 lines · Luca
Quoted 10 lines · Farkas Levente

hi,
i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and one x86_64 guests. but none of the guest are able to restart. ie. i login to the guests and restart it. it start's as normal reboot, but after the last command (shuting down md device) it's do nothing, but in virt-manager i see 50% load on the guest. the biggest problem currently i can't find any way to restart any guest's other then shutdown and use virt-manager and restart them:-(
what can be a problem? is it a known bug or it's just not working for me?

Quoted 8 lines
Quoted 4 lines

It's known, but ATM there's no fix available. For more details see:
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/5651/focus=6003
and following mails.

is this really true? this means kvm are not usable any real environment since imho the feature to be able to reboot a server is essential!

It's true unfortunately. A fix will be available shortly.

Signature · 8 lines
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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#8 lore raw
Quoted 20 lines · Avi Kivity
Quoted 19 lines · Farkas Levente
Quoted 16 lines · Luca
Quoted 10 lines · Farkas Levente

hi,
i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and one x86_64 guests. but none of the guest are able to restart. ie. i login to the guests and restart it. it start's as normal reboot, but after the last command (shuting down md device) it's do nothing, but in virt-manager i see 50% load on the guest. the biggest problem currently i can't find any way to restart any guest's other then shutdown and use virt-manager and restart them:-(
what can be a problem? is it a known bug or it's just not working for me?

It's known, but ATM there's no fix available. For more details see:
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/5651/focus=6003
and following mails.

Quoted 5 lines
Quoted 3 lines

is this really true? this means kvm are not usable any real environment since imho the feature to be able to reboot a server is essential!

It's true unfortunately. A fix will be available shortly.

I haven't tested but reboot=b ("go back in real mode and pass control to BIOS") may work.

Luca

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