This bug was fixed in the package linux - 3.0.0-26.43
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linux (3.0.0-26.43) oneiric-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #1055532
[ Dave Airlie ]
* SAUCE: drm/vmwgfx: add MODULE_DEVICE_TABLE so vmwgfx loads at boot
- LP: #1039157
This bug was fixed in the package linux - 2.6.32-44.98
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linux (2.6.32-44.98) lucid-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #1055438
[ Dave Airlie ]
* SAUCE: drm/vmwgfx: add MODULE_DEVICE_TABLE so vmwgfx loads at boot
- LP: #1039157
I ran both the server and the ec2 Lucid kernels in an Amazon instance.
Of course to find a host that really has xsave support is like searching
a needle in the cloud stack. But at least this add some confidence that
nothing broke beyond the state it was broken before. Which I would
believe to be
So Oneiric works with the same restrictions. Only time will tell for
sure.
** Tags removed: verification-needed-oneiric
** Tags added: verification-done-oneiric
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** Branch linked: lp:ubuntu/lucid-proposed/linux-ec2
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https://bugs.launchpad.net/bugs/1044550
Title:
Update the EC2 work-around for the OSXSAVE issue in pv-ops
To manage notifications
** Branch linked: lp:ubuntu/oneiric-proposed/linux-ti-omap4
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https://bugs.launchpad.net/bugs/1044550
Title:
Update the EC2 work-around for the OSXSAVE issue in pv-ops
To manage
This bug is awaiting verification that the kernel for Lucid and Oneiric
in -proposed solves the problem (2.6.32-44.98 and 3.0.0-26.43). Please
test these kernels and update this bug with the results. If the problem
is solved, change the tag 'verification-needed-lucid' (or 'verification-
** Description changed:
SRU Justification:
There has been an issue with older Xen hypervisors (Xen 3.x) which caused
guest crashes with pv-ops kernels. For that we are carrying a patch borrowed
from Fedora which masks off the OSXSAVE bit on CR4 writes. However there have
been issues with
This bug was fixed in the package linux - 3.2.0-31.50
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linux (3.2.0-31.50) precise-proposed; urgency=low
[Luis Henriques]
* Release Tracking Bug
- LP: #1047242
[ Dave Airlie ]
* SAUCE: drm/vmwgfx: add MODULE_DEVICE_TABLE so vmwgfx loads at boot
- LP: #1039157
Annotations/info from the upstream discussion:
The kernel would set OSXSAVE in CR4 when the cpuid bits for XSAVE and
OSXSAVE are set. Xen is supposed to mask those off (cannot say since
which version but it is claimed to be done for quite a while now). The
issues with upstream kernels happened
Ok, so I searched for the patch to Xen mentioned in the upstream
discussion which was:
x86: Mask X86_FEATURE_XSAVE in cpuid leaf 1, ecx, as we don't
allow guests to use it (by setting cr4.OSXSAVE).
Together with the other comments I think I understand now that Xen
always has masked off
I am on vacation this week, so I will not be able to verify this. I have
been testing the change before on EC2 instances and the workaround was
enabled without seeing any problem. Can we let this stay/pass based on
this? Thanks.
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As per comment #2 and the discussion on the mailing list:
https://lists.ubuntu.com/archives/kernel-team/2012-September/021978.html
I'm tagging this bug as verified.
** Tags removed: verification-needed-precise
** Tags added: verification-done-precise
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** Branch linked: lp:ubuntu/precise-proposed/linux-ti-omap4
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https://bugs.launchpad.net/bugs/1044550
Title:
Update the EC2 work-around for the OSXSAVE issue in pv-ops
To manage
This bug is awaiting verification that the kernel for Precise in
-proposed solves the problem (3.2.0-31.50). 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
** Branch linked: lp:ubuntu/precise-proposed/linux-armadaxp
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https://bugs.launchpad.net/bugs/1044550
Title:
Update the EC2 work-around for the OSXSAVE issue in pv-ops
To manage
** Changed in: linux (Ubuntu Precise)
Status: In Progress = Fix Committed
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https://bugs.launchpad.net/bugs/1044550
Title:
Update the EC2 work-around for the OSXSAVE issue in
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