** Changed in: linux (Ubuntu)
Status: In Progress => Fix Released
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Title:
[Hyper-V] Kernel panic not functional on 32bit Ubun
This bug was fixed in the package linux - 4.8.0-34.36
---
linux (4.8.0-34.36) yakkety; urgency=low
[ Luis Henriques ]
* Release Tracking Bug
- LP: #1651800
* Miscellaneous Ubuntu changes
- SAUCE: Do not build the xr-usb-serial driver for s390
linux (4.8.0-33.35) yakke
This bug was fixed in the package linux - 4.8.0-34.36
---
linux (4.8.0-34.36) yakkety; urgency=low
[ Luis Henriques ]
* Release Tracking Bug
- LP: #1651800
* Miscellaneous Ubuntu changes
- SAUCE: Do not build the xr-usb-serial driver for s390
linux (4.8.0-33.35) yakke
This bug was fixed in the package linux - 4.4.0-59.80
---
linux (4.4.0-59.80) xenial; urgency=low
[ John Donnelly ]
* Release Tracking Bug
- LP: #1654282
* [2.1.1] MAAS has nvme0n1 set as boot disk, curtin fails (LP: #1651602)
- (fix) nvme: only require 1 interrupt vec
This bug was fixed in the package linux - 4.4.0-59.80
---
linux (4.4.0-59.80) xenial; urgency=low
[ John Donnelly ]
* Release Tracking Bug
- LP: #1654282
* [2.1.1] MAAS has nvme0n1 set as boot disk, curtin fails (LP: #1651602)
- (fix) nvme: only require 1 interrupt vec
We verified the following proposed kernels:
Xenial: 4.4.0.58.61 and 4.4.0.58.79
Yakkety: 4.8.0.34.43
Standard kdump and kdump through NMI work now as expected, single core
and SMP configurations.
** Tags removed: verification-needed-xenial verification-needed-yakkety
** Tags added: verification-d
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-
yakkety' to 'verification-done-yakkety'. If the problem still exists,
change the tag 'verifi
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 'verifica
** Changed in: linux (Ubuntu Xenial)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Yakkety)
Status: In Progress => Fix Committed
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** No longer affects: kexec-tools (Ubuntu)
** No longer affects: kexec-tools (Ubuntu Xenial)
** No longer affects: kexec-tools (Ubuntu Yakkety)
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I also built a xenial test kernel with the patch. It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1400319/xenial
Can you see if this kernel also resolves the bug on 16.04? If it does,
I'll SRU the path to both Xenial and Yakkety.
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Thanks for the update, Oviddiu. I'll build a 16.04 test kernel with
that commit as well. I'll post it shortly.
** Also affects: kexec-tools (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Yakkety)
Importance: Undecided
Status: New
** Also a
I've tested the kernel on Ubuntu 16.04 32 bit and everything works fine,
even with kdump through NMI.
Note: Kdump through NMI on Ubuntu 16.04 32 bit with kernel
4.4.0-21-generic is not working. I've also tested Ubuntu 15.04 but this
version is End of life.
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Hi Chris,
Sorry about that. There is an i386 kernel there now:
http://kernel.ubuntu.com/~jsalisbury/lp1400319/yakkety/
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Title
Hi Joe,
We did look at http://kernel.ubuntu.com/~jsalisbury/lp1400319/ however that
folder has the 32bit kernel and binaries.
As this bug is in regards to the 32bit architecture, we would need the i386
kernel actually.
Thank you!
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Sorry, the test kernel was up one directory. The kernel is now available in:
http://kernel.ubuntu.com/~jsalisbury/lp1400319/yakkety/
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Hi Josh,
We missed your reply and now the folder is empty. Can you upload again
the test kernel so we can test it?
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Title:
[H
I built a test kernel with the following commit, that is now in v4.9-rc1:
a9f61ca Drivers: hv: avoid vfree() on crash
Can you test this kernel and see if it resolves this bug? It can be downloaded
from:
http://kernel.ubuntu.com/~jsalisbury/lp1400319/yakkety/
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** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
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https:
** No longer affects: linux (Ubuntu Wily)
** No longer affects: kexec-tools (Ubuntu Wily)
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Title:
[Hyper-V] Kernel panic not
A number of kdump patches were included in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1588965 so this
needs retesting.
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A consideration:
From: Vitaly Kuznetsov
When we crash from NMI context (e.g. after NMI injection from host when
'sysctl -w kernel.unknown_nmi_panic=1' is set) we hit
kernel BUG at mm/vmalloc.c:1530!
as vfree() is denied. While the issue could be solved with in_nmi() check
instead I opted f
Josh to collect the upstream NMI submissions and put them in a comment
here.
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Title:
[Hyper-V] Kernel panic not functional on
kdump crash feature on 32bit Xenial GA (kernel 4.4.0-21) does work most of the
times.
The issue here can be related to the CPU handling the crash, for which there is
a set of patches.
These would also cover the kdump triggered through NMI scenario.
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Microsoft will attempt recreation on the Xenial kernel and report.
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Title:
[Hyper-V] Kernel panic not functional on 32bit Ubun
32-bit is failing on Xenial triggered via NMI or with 2 or more cores.
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Title:
[Hyper-V] Kernel panic not functional on 32bit
** Summary changed:
- [Hyper-V] Kernel panic not functional on 32bit Ubuntu 14.10 and 15.04
+ [Hyper-V] Kernel panic not functional on 32bit Ubuntu 14.10, 15.04, and 15.10
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