** Changed in: linux (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2032164
Title:
A general-proteciton exception during guest
Mantic has already included this two commits in #2049202 [1].
c95b65ba744d x86/fpu: Allow caller to constrain xfeatures when copying to
uabi buffer
97cdceb46fb3 KVM: x86: Constrain guest-supported xfeatures only at
KVM_GET_XSAVE{2}
[1] https://bugs.launchpad.net/bugs/2049202
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You
Fix is from v6.6. Noble is not affected. Question is whether this should
not also be added to Mantic?
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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We have backported the following two patches in Jammy and waiting for review:
18164f66e6c5 x86/fpu: Allow caller to constrain xfeatures when copying
to uabi buffer
8647c52e9504 KVM: x86: Constrain guest-supported xfeatures only at
KVM_GET_XSAVE{2}
The fix will also apply to
** Description changed:
[Impact]
When a host that supports PKRU initiates a guest that lacks PKRU support, the
flag is enabled on the guest's fpstate.
This information is then passed to userspace through the vcpu ioctl
KVM_GET_XSAVE.
However, a problem arises when the user opts to
Is there an alternative patch in development? This bug (or at least it
seems to be this bug) still affects us.
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Title:
A
This bug is awaiting verification that the linux-nvidia-
tegra-5.15/5.15.0-1018.18~20.04.1 kernel in -proposed solves the
problem. Please test the kernel and update this bug with the results. If
the problem is solved, change the tag 'verification-needed-focal-linux-
nvidia-tegra-5.15' to
This bug is awaiting verification that the linux-nvidia-tegra-
igx/5.15.0-1005.5 kernel in -proposed solves the problem. Please test
the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-jammy-linux-nvidia-tegra-
igx' to
This bug is awaiting verification that the linux-nvidia-
tegra/5.15.0-1018.18 kernel in -proposed solves the problem. Please test
the kernel and update this bug with the results. If the problem is
solved, change the tag 'verification-needed-jammy-linux-nvidia-tegra' to
This bug is awaiting verification that the linux-azure/5.15.0-1050.57
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-jammy-linux-azure' to 'verification-done-jammy-
linux-azure'. If
This got reverted on request since it caused different migration issues
(bug #2036675).
** Changed in: linux (Ubuntu Jammy)
Status: Fix Committed => Triaged
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** Changed in: linux (Ubuntu Jammy)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/2032164
Title:
A general-proteciton exception during guest migration
We have now confirmed at three different locations that Live-Migration
from PKRU PRE-5.15.0-85.95 to PKRU 5.15.0-85.95 compute nodes breaks.
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The kernels (5.15.0-85.95) have been tested without any issues.
** Tags removed: verification-needed-jammy-linux
** Tags added: verification-done-jammy-linux
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This bug is awaiting verification that the linux/5.15.0-85.95 kernel in
-proposed solves the problem. Please test the kernel and update this bug
with the results. If the problem is solved, change the tag
'verification-needed-jammy-linux' to 'verification-done-jammy-linux'. If
the problem still
** Changed in: linux (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2032164
Title:
A general-proteciton exception during guest
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