** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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Title:
Wily update to v4.2.8-ckt3 stable release
Status in
For the record, the KVM problem identified by Thomas will be tracked by
LP: #1552592.
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Title:
Wily update to v4.2.8-ckt3 stable
For easy access, upstream patch is here (and also already included in
ubuntu-xenial 4.4 kernel (git master repo))
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b1b9ca6d5ca5f3ce91c0095402def657cf5db3
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Soo, after some digging I found the root cause, while those two KVM patches
listed above were backported/added another on was not, namely:
81b1b9ca6d5ca5f3ce91c0095402def657cf5db3
KVM: VMX: Fix host initiated access to guest MSR_TSC_AUX
I backported it to this Ubuntu-4.2.0-30.35 kernel and
Follow up, I tried it with a Ubuntu Server and Alpine Linux without any
gui and it frozed also, same backtrace.
Sorry I could swear Alpine Linux did not froze when I first tested it in
a nested VM.
** Attachment added: "backtrace-qemu-migration-hang.log"
** Attachment added: "backtrace.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1540532/+attachment/4581592/+files/backtrace.log
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Hi,
commit 3f11933efc9ef55ecb2ac7e6d626e8d05a99a4b1 - KVM: x86: expose MSR_TSC_AUX
to userspace
breaks KVM/QEMU live migration of host with a graphical user interface.
== Software Versions: ==
Kenel: this one, namely: Ubuntu-4.2.0-30.35
kvm-qemu: 2.5.0
== Reproduction ==
Install kernel with
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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** Branch linked: lp:~ubuntu-branches/ubuntu/trusty/linux-lts-wily
/trusty-proposed
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Title:
Wily update to v4.2.8-ckt3 stable
This bug was fixed in the package linux - 4.2.0-30.35
---
linux (4.2.0-30.35) wily; urgency=low
[ Seth Forshee ]
* SAUCE: cred: Add clone_cred() interface
- LP: #1531747, #1534961, #1535150
- CVE-2016-1575 CVE-2016-1576
* SAUCE: overlayfs: Use mounter's credentials
** Description changed:
-
- SRU Justification
-
- Impact:
-The upstream process for stable tree updates is quite similar
-in scope to the Ubuntu SRU process, e.g., each patch has to
-demonstrably fix a bug, and each patch is vetted by upstream
-by
** Changed in: linux (Ubuntu Wily)
Status: New => Fix Committed
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Title:
Wily update to v4.2.8-ckt3 stable release
Status in
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