** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
** Changed in: ubuntu-power-systems
Status: Fix Committed => Fix Released
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This bug was fixed in the package linux - 4.4.0-103.126
---
linux (4.4.0-103.126) xenial; urgency=low
* linux: 4.4.0-103.126 -proposed tracker (LP: #1736181)
* CVE-2017-1000405
- mm, thp: Do not make page table dirty unconditionally in touch_p[mu]d()
* CVE-2017-16939
--- Comment From rahch...@in.ibm.com 2017-11-30 14:02 EDT---
I have verified the fix on xenial.
Linux neo160.blr.stglabs.ibm.com 4.4.0-102-generic #125-Ubuntu SMP Tue
Nov 21 15:13:58 UTC 2017 ppc64le ppc64le ppc64le GNU/Linux
** Tags removed: verification-needed-xenial
** Tags added:
This bug is awaiting verification that the 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-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag
The fix is in the -proposed repository. It will be released with the
Ubuntu-4.4.0-102.125 kernel.
** Changed in: linux (Ubuntu)
Status: In Progress => Fix Committed
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** Changed in: ubuntu-power-systems
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1727331
Title:
NMI watchdog: BUG: soft lockup on Guest
** Changed in: linux (Ubuntu Xenial)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1727331
Title:
NMI watchdog: BUG: soft lockup on Guest
Mailing list thread for SRU request:
https://lists.ubuntu.com/archives/kernel-team/2017-November/088038.html
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https://bugs.launchpad.net/bugs/1727331
Title:
NMI watchdog:
** Tags added: triage-g
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https://bugs.launchpad.net/bugs/1727331
Title:
NMI watchdog: BUG: soft lockup on Guest upon boot (KVM)
Status in The Ubuntu-power-systems
** Description changed:
+ == SRU Justification ==
+ Xenial does not include the patch:
+ "KVM: PPC: Book3S: Treat VTB as a per-subcore register, not per-thread",
+ which is commit 88b02cf97bb7 in the upstream Linux kernel repository. The
+ symptom of not having this patch is that guests running
I built a Xenial test kernel with the back port of commit 88b02cf97bb7
posted in comment #1. The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1727331/
Can you test this kernel and see if it resolves this bug? Be sure to
install both the linux-image and
** Changed in: ubuntu-power-systems
Status: Triaged => In Progress
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Title:
NMI watchdog: BUG: soft lockup on Guest upon boot
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
Status: New => In Progress
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) =>
** Changed in: ubuntu-power-systems
Status: New => Triaged
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https://bugs.launchpad.net/bugs/1727331
Title:
NMI watchdog: BUG: soft lockup on Guest upon boot (KVM)
Do you need me to build a test kernel with this backport and submit and
SRU request for Xenial? Or do you plan on doing that?
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Tags added: kernel-da-key
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You
** Package changed: kernel-package (Ubuntu) => linux (Ubuntu)
** Also affects: ubuntu-power-systems
Importance: Undecided
Status: New
** Changed in: ubuntu-power-systems
Importance: Undecided => Critical
** Changed in: ubuntu-power-systems
Assignee: (unassigned) => Canonical
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