This bug was fixed in the package linux - 3.2.0-30.48
---
linux (3.2.0-30.48) precise-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #1041217
[ Upstream Kernel Changes ]
* mutex: Place lock in contended state after fastpath_lock failure
- LP: #1
The bug here is actually in the outer host so the quantal task should be
Invalid as there is no bug not won't fix.
** Changed in: linux (Ubuntu)
Status: Won't Fix => Invalid
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Tagging as verified as per comment #10
** Tags removed: verification-needed-precise
** Tags added: verification-done-precise
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https://bugs.launchpad.net/bugs/1031090
Title:
kvm_intel n
Verified running the 3.2.0-30.47 kernel on a kvm host and loading the
kvm-intel module in a quantal guest.
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Title:
kvm_intel not loadable in a qu
** Branch linked: lp:ubuntu/precise-proposed/linux-armadaxp
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Title:
kvm_intel not loadable in a quantal guest
To manage notifications about this
** Branch linked: lp:ubuntu/precise-proposed/linux-ti-omap4
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Title:
kvm_intel not loadable in a quantal guest
To manage notifications about this
This bug is awaiting verification that the kernel for Precise in
-proposed solves the problem (3.2.0-30.47). Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-precise' to 'verification-done-precise'.
If verification is not do
** Description changed:
+ SRU Justification:
+ Impact: A KVM guest running a v3.3+ kernel will fail to load the kvm_intel
module when running on a v3.2 host. This is because the newer kernel module
will check for the presence of a CPU specific flag (which any real CPU would
have) in the MSRs th
IOW, this is seen as something that should be fixed by adding support to
the host kvm module. Since this was done in 3.3, the only affected
(probably around the first kernel that supported nesting) is 3.2. But
that requires careful pick of patches and hopefully a way to test. So
its hard to give an
On 08/01/2012 06:07 PM, Nadav Har'El wrote:
> On Wed, Aug 01, 2012, Avi Kivity wrote about "Re: Nested kvm_intel broken on
> pre 3.3 hosts":
>> Right - it's not just kvm-as-a-guest that will trip on this. But
>> there's no point in everyone backporting it on their own. If you're
>> doing the bac
FYI, that patch was part of v3.3-rc1. So basically things were broken
for the whole of Quantal.
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Title:
kvm_intel not loadable in a quantal guest
Bisection turned up the following patch (proved to be correct by
reverting from Quantal):
commit fee84b079d5ddee2247b5c1f53162c330c622902
Author: Avi Kivity
Date: Thu Nov 10 14:57:25 2011 +0200
KVM: VMX: Intercept RDPMC
Intercept RDPMC and forward it to the PMU emulation code.
Si
To narrow this down I tested with a Precise and Quantal user-space and a
mainline v3.3 kernel build. Both fail in the same way (-EIO) in module
init. Seems this has been that way for quite a bit then.
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Stefan Bader (stefan-bader-canonical)
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Title:
kvm_intel not loadable in a quantal gu
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Tags added: kernel-da-key quantal
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Title:
kvm_intel not loadable in a quantal
FYI, this affects parts of Canonistack as well as security team support
for OpenStack, since we all have Intel.
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Title:
kvm_intel not loadable in
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
kvm_
Confirmed that this works with precise host and amd guest, but fails
with intel guest.
$ sudo modprobe kvm_intel
FATAL: Error inserting kvm_intel
(/lib/modules/3.5.0-6-generic/kernel/arch/x86/kvm/kvm-intel.ko): Input/output
error
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