I got this bug on xenial 16.04.3
kernel 4.4.0-112-generic
CPU model name: Intel(R) Xeon(R) CPU E3-1220 V2 @ 3.10GHz
$ sudo kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
$ uname -a
Linux vmlab 4.4.0-112-generic #135-Ubuntu SMP Fri Jan 19 11:48:36 UTC 2018
x86_64 x86_64 x86_64
Hi Christopher,
Unfortunately, I went back to Debian (which didn't have the bug) on this
hardware, but now I no longer have access to this machine, so I can't do any
further testing.
Unless someone else watching this thread can reproduce the problem, there's no
further testing/troubleshooting
Jason Ashworth, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/qemu-
kvm/+bug/1021271/comments/27 regarding you no longer have access to the
machine. For future reference you can manage the status of your own bugs
by clicking on the current
Hi Christopher,
Unfortunately, I went back to Debian (which didn't have the bug) on this
hardware, but now I no longer have access to this machine, so I can't do any
further testing.
Unless someone else watching this thread can reproduce the problem, there's no
further testing/troubleshooting
Jason Ashworth, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/qemu-
kvm/+bug/1021271/comments/27 regarding you no longer have access to the
machine. For future reference you can manage the status of your own bugs
by clicking on the current
Jason Ashworth, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu server? ISO images are available from
Jason Ashworth, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu server? ISO images are available from
Thanks for the help but alas it does not work this time either.
I have installed and tried both linux-generic-lts-quantal and linux-
generic-lts-raring:
$ sudo wajig install linux-generic-lts-*
Result with quantal:
hong@vhost01:~$ uname -a
Linux vhost01 3.5.0-42-generic #65~precise1-Ubuntu SMP
Doesn't seem to work:
hong@vhost01:~$ sudo sh -c echo 'performance'
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
hong@vhost01:~$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance
hong@vhost01:~$ sudo kvm
failed to initialize KVM: Device or resource busy
Back to tcg
Thanks. I think the best course here is to try the HWE (hardware-
enablement) kernel. I believe the best bet would be to install linux-
image-generic-lts-raring (3.8), however someone on the kernel team can
hopefully confirm.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
I'm told it should be linux-generic-lts-series to get the headers as
well as the kernel.
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Title:
KVM enabling virtualization on CPU0 failed
To
Thanks for the help but alas it does not work this time either.
I have installed and tried both linux-generic-lts-quantal and linux-
generic-lts-raring:
$ sudo wajig install linux-generic-lts-*
Result with quantal:
hong@vhost01:~$ uname -a
Linux vhost01 3.5.0-42-generic #65~precise1-Ubuntu SMP
Could you try setting
devices/system/cpu/cpu0/cpufreq/scaling_governor = performance
in /etc/sysfs.conf?
http://etbe.coker.com.au/2010/03/17/starting-with-kvm/ suggests that kvm
may not like frequency scaling on on that cpu.
** Changed in: linux (Ubuntu)
Status: Invalid = Incomplete
--
Could you try setting
devices/system/cpu/cpu0/cpufreq/scaling_governor = performance
in /etc/sysfs.conf?
http://etbe.coker.com.au/2010/03/17/starting-with-kvm/ suggests that kvm
may not like frequency scaling on on that cpu.
** Changed in: linux (Ubuntu)
Status: Invalid = Incomplete
--
hong@vhost01:~$ uname -a
Linux vhost01 3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
The result with saucy is the same as with precise:
ubuntu@s1:~$ sudo kvm
W: kvm binary is deprecated, please use qemu-system-x86_64 instead
failed to initialize
hong@vhost01:~$ uname -a
Linux vhost01 3.2.0-54-generic #82-Ubuntu SMP Tue Sep 10 20:08:42 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
The result with saucy is the same as with precise:
ubuntu@s1:~$ sudo kvm
W: kvm binary is deprecated, please use qemu-system-x86_64 instead
failed to initialize
Which kernel are you running? (Please show uname -a output)
To figure out whether this is a kernel or qemu problem, it would be
useful to test kvm in a saucy chroot or container. Basically, you would
sudo apt-get -y install lxc
sudo lxc-create -t ubuntu -n s1 -- -r saucy
sudo lxc-start -n s1
Which kernel are you running? (Please show uname -a output)
To figure out whether this is a kernel or qemu problem, it would be
useful to test kvm in a saucy chroot or container. Basically, you would
sudo apt-get -y install lxc
sudo lxc-create -t ubuntu -n s1 -- -r saucy
sudo lxc-start -n s1
$ kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
BIOS is OK. I haven't change anything during the upgrade to 12.04. And
now I installed a parallel installation of 10.04 on another partition.
When the machine is booted into that distribution, all VM's run as
usual. It's just with 12.04
$ kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
BIOS is OK. I haven't change anything during the upgrade to 12.04. And
now I installed a parallel installation of 10.04 on another partition.
When the machine is booted into that distribution, all VM's run as
usual. It's just with 12.04
Any progress with the bug?
I encouter the same problem now when upgrading from 10.04 to 12.04.3LTS.
I am also using amd CPU, AMD Phenom(tm) II X4 940 to be precise.
After the upgrade, no virtual machine can be started with exactly the
same error. I am considering a distribution downgrade if
Please run
sudo kvm-ok
and show the results here. Please reboot and enter your bios setup and
make sure that 'virtualization extensions' are on.
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Any progress with the bug?
I encouter the same problem now when upgrading from 10.04 to 12.04.3LTS.
I am also using amd CPU, AMD Phenom(tm) II X4 940 to be precise.
After the upgrade, no virtual machine can be started with exactly the
same error. I am considering a distribution downgrade if
Please run
sudo kvm-ok
and show the results here. Please reboot and enter your bios setup and
make sure that 'virtualization extensions' are on.
--
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Bugs, which is subscribed to Ubuntu.
Ok, thanks again for your help.
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https://bugs.launchpad.net/bugs/1021271
Title:
KVM enabling virtualization on CPU0 failed
To manage notifications about this bug go to:
As this wasn't getting much attention, and because I needed KVM, I
decided to install Debian Squeeze amd64 on this box instead. KVM now
works perfectly.
Unfortunately, this now means that I cannot test any more the problem
that I had with Ubuntu 12.04. So, unless anyone else is affected by
this
(For searchability, this is a problem with 12.04 qemu-kvm on a AMD
Athlon(tm) 5000 Dual-Core Processor )
Jason, could you tell us the kernel version you are successfully using
in squeeze?
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Certainly:
$ uname -a
Linux cube 2.6.32-5-amd64 #1 SMP Sun May 6 04:00:17 UTC 2012 x86_64 GNU/Linux
$
$ cat /etc/issue.net
Debian GNU/Linux 6.0
$
$ kvm --version
QEMU PC emulator version 0.12.5 (qemu-kvm-0.12.5), Copyright (c) 2003-2008
Fabrice Bellard
$
For clarity, this is the exact same
The kvm_amd module has had some other regressions since 2.6.32, so i
wouldn't be surprised if a newer (3.2 or 3.5) kernel produced the same
problem for you with debian. Hopefully we'll get to the bottom of it.
I'll go ahead and mark the bug invalid - an 'advanced search' will still
bring up this
Actually I'll mark it incomplete instead.
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
** Changed in: qemu-kvm (Ubuntu)
Status: Confirmed = Incomplete
** Changed in: linux (Ubuntu)
Status: Incomplete = Invalid
** Changed in: qemu-kvm (Ubuntu)
Status:
Thanks, Serge.
I'm having trouble running apport-collect, as this is a headless server
install, so only browser available is lynx, which seems to fail just
after allowing authorisation.
However, here are the rest of the details you've requested:
$ lsmod
Module Size Used by
** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete = New
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Title:
KVM enabling virtualization on CPU0 failed
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Everything looks good. I have no problems running qemu-kvm in precise
on an amd laptop. However it could be a chip-specific bug. I am adding
the kernel to the list of affected packages.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags added: kernel-kvm
--
Hi Brad,
I can't run apport-collect on this system, as detailed in Comment #6.
As requested, I've now set this bug to Confirmed.
Many thanks.
** Changed in: qemu-kvm (Ubuntu)
Status: New = Confirmed
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
--
You received
Do you perhaps have Virtualbox and/or VMWare installed as well?
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Title:
KVM enabling virtualization on CPU0 failed
To manage
Hi Soren. No, I do not have any other virtualisation technologies
installed. This is a fresh install (installed first time with base
server install only, followed by apt-get install kvm, and then a
second fresh install choosing Virtual server host (or whatever the
exact wording is) in the server
Can you provide the output of the command kvm-ok please?
Thanks.
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Title:
KVM enabling virtualization on CPU0 failed
To manage
Sure:
$ kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
$
Thanks!
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Title:
KVM enabling virtualization on CPU0 failed
Hi Jason,
could you please run 'apport-collect 1021271' to have apport submit some
extra debugging information?
In addition, please show the result of:
lsmod
grep -i kvm /var/log/boot.log
ls -l /dev/kvm
dpkg -l | grep kvm
Finally, the only time I've seen symptoms like this so
Do you perhaps have Virtualbox and/or VMWare installed as well?
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Title:
KVM enabling virtualization on CPU0 failed
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Hi Soren. No, I do not have any other virtualisation technologies
installed. This is a fresh install (installed first time with base
server install only, followed by apt-get install kvm, and then a
second fresh install choosing Virtual server host (or whatever the
exact wording is) in the server
Can you provide the output of the command kvm-ok please?
Thanks.
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1021271
Title:
KVM enabling virtualization on CPU0 failed
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Sure:
$ kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
$
Thanks!
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1021271
Title:
KVM enabling virtualization on CPU0 failed
To manage
Hi Jason,
could you please run 'apport-collect 1021271' to have apport submit some
extra debugging information?
In addition, please show the result of:
lsmod
grep -i kvm /var/log/boot.log
ls -l /dev/kvm
dpkg -l | grep kvm
Finally, the only time I've seen symptoms like this so
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