Windows guest can't reboot when using smp.

[casolorz]

Binary package hint: kvm

We are using:
 Ubuntu 8.04 64-bit
 QEMU 0.9.1
 kvm-72 and kvm-84

We have two guests, WinXP and Win2k3.

Both guests work great, but they can't successfully reboot. When we tell it them to reboot it gets stuck on a blue screen. If we turn off SMP then it works fine.
Shutting down always works, its only reboot that is broken.

Thanks,

--Carlos

[Dustin Kirkland  (kirkland)]

SMP on Hardy's kvm-62 is known to be buggy and cannot be used reliably for any number of reasons.

If possible, please test the kvm-84 backported to Hardy, which is available in:
 * https://launchpad.net/~ubuntu-virt/+archive/ppa

:-Dustin

[Dustin Kirkland  (kirkland)]

Hello-

Can you confirm that you're using the kvm-84 package as provided in the ~ubuntu-virt PPA for hardy, and that you're still experiencing this issue?

Can you reboot successfully if you don't use SMP?

:-Dustin

[casolorz (casolorz)]

We were using kvm-84 but I am not sure if it was from PPA for hardy. And yes we could reboot without SMP.
We no longer have the system we were testing on or the VM, we were just evaluating kvm for our virtualization solutions and we are done with that evaluation now.
Thanks,

--Carlos

[Dustin Kirkland  (kirkland)]

Thanks a lot for the update.

:-Dustin

[Jeff Tyson (jeff-applianz)]

I can confirm this problem when using kvm-84 installed from the ubuntu-virt PPA.

In my windows 2003 server standard x64 guest setting smp=1 makes the reboot work fine, but smp=2 causes the hang. Shutdown works fine, it's just reboot from what i can see.

[Jeff Tyson (jeff-applianz)]

I have compiled and installed kvm-86, and there is no issue with rebooting. Is there a PPA for this version, or are there plans to update the ubuntu-virt PPA?

[Dustin Kirkland  (kirkland)]

Jeff-

In your testing, kvm-84 does *not* work, but kvm-86 does?

:-Dustin

[Dustin Kirkland  (kirkland)]

I should be merging kvm/qemu for Karmic very soon. I'll upload
something to a PPA for older releases, for testing purposes.

:-Dustin

[Jeff Tyson (jeff-applianz)]

Yes, that is correct, rebooting works in kvm-86.

[Dustin Kirkland  (kirkland)]

Thanks for the report.

This should be fixed in Karmic's qemu-kvm-0.11 package.

If you can reproduce this issue with that package, please reopen the bug.

Thanks,
:-Dustin

[gaestur (usx)]

Found the same problem in Karmic qemu-kvm 0.11.0-0ubuntu6.3.

Test site: HP DL 380 G5 (8-core, 16 GB RAM).
qemu-kvm 0.11.0-0ubuntu6.3
Linux net-v2 2.6.31-20-server #57-Ubuntu SMP Mon Feb 8 09:59:59 UTC 2010 x86_64 GNU/Linux

Windows 2003 R2 guests are having the same problem with 2 virt CPU setup - first crash during reboot after installation, then randomly crashing on consequent reboots. Shutdown ans manual startup work quite fine.