** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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https://bugs.launchpad.net/bugs/978320
Title:
crash at start guest on Ubuntu12.04 64bit host
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Hello Stefan, Hello Serge
today I finally had the opportunity to update the BIOS. Now it run.
Sorry for your time. I close this bug.
** Changed in: qemu-kvm (Ubuntu)
Status: Confirmed = Invalid
** Changed in: linux (Ubuntu)
Status: Confirmed = Invalid
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You received this bug
So basically the guest seems to have an unexpected fault while still
executing option rom code. The host kernel has code to cause a stack
trace in that situation. This is specific to the AMD kvm module. Just
that I don't seem to be able to trigger the same on the systems I have
access to...
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@Christoph - thanks (for confirming with simple kvm command).
I will try to reproduce as soon as hardware to do so with arrives.
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Title:
crash
I am not sure I understand this completely, but for the spurious fault there is
a comment in the code saying that virtualization instructions may fail if
turned off after reboot but processes using them. Not sure this means reboot of
guest or host and if host how processes may use them still...
apport information
** Tags added: apport-collected
** Description changed:
kernel reportet cash at starting vm.
[ 682.151774] [ cut here ]
[ 682.151847] kernel BUG at
/build/buildd/linux-3.2.0/arch/x86/kvm/../../../virt/kvm/kvm_main.c:2367!
[
** Changed in: qemu-kvm (Ubuntu)
Status: New = Confirmed
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
** Tags added: amd crash
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https://bugs.launchpad.net/bugs/978320
Title:
crash at start guest on Ubuntu12.04 64bit host
To manage notifications about this bug go to:
Thank you for taking the time to file a bug report on this issue.
However, given the number of bugs that the Kernel Team receives during
any development cycle it is impossible for us to review them all.
Therefore, we occasionally resort to using automated bots to request
further testing. This is
apport information
** Description changed:
kernel reportet cash at starting vm.
[ 682.151774] [ cut here ]
[ 682.151847] kernel BUG at
/build/buildd/linux-3.2.0/arch/x86/kvm/../../../virt/kvm/kvm_main.c:2367!
[ 682.151971] invalid opcode: [#1] SMP
@Serge i have tested your kvm commandline. But it crashed, too.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Title:
Now i retested with current kernel using command line
kvm -hda launchpad.img -cdrom precise-mini.iso -boot d -m 512 -curses
The vm hangs showing bios iPXE ... Press Ctrl-B ... message
and it still triggers the kernel BUG:
Apr 11 23:12:21 ba kernel: [ 143.771843] [ cut here
** Attachment added: full apport-cli report
https://bugs.launchpad.net/bugs/978320/+attachment/3042442/+files/bug-kvm
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Title:
crash at start
[ 682.152005] Pid: 2877, comm: kvm Not tainted 3.2.0-22-generic
#35-Ubuntu To Be Filled By O.E.M. To Be Filled By O.E.M./K10N78hSLI-GLAN
?
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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@Christoph,
thanks for submitting this bug. Did you just install precise? If not,
is it up to date? Can you tell us exactly how you started kvm?
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@Serge I have install precise at a new hard disk. Everything is up to
date. I start it with virt-manager or virsh. If I start the machin,
after 2 Secons it crash.
Hier is my one of my vms:
domain type='kvm'
nameubuntu/name
uuidea3ac3c6-93d0-b174-97dc-e3e2827e051f/uuid
memory1048576/memory
Thanks, Christoph.
[ 682.152005] [a027c0eb] cr8_write_interception+0x10b/0x16b [kvm_amd]
[ 682.152005] [a0277dec] ? svm_vcpu_run+0x11c/0x4a0 [kvm_amd]
I unfortunately do not have a amd box to test on, but this looks bad.
Are you able to run apport-collect 978320 as Brad('s
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