| 2017-11-21 17:41:03 |
Rod Smith |
bug |
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added bug |
| 2017-11-21 17:41:03 |
Rod Smith |
attachment added |
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dmesg output with a 4.10 kernel https://bugs.launchpad.net/bugs/1733662/+attachment/5012381/+files/dmesg-output-4.10.txt |
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| 2017-11-21 17:41:21 |
Rod Smith |
tags |
amd64 apport-bug uec-images xenial |
amd64 apport-bug hwcert-server uec-images xenial |
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| 2017-11-21 17:43:19 |
Rod Smith |
attachment added |
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dmesg output with a 4.13 kernel https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1733662/+attachment/5012385/+files/dmesg-output-4.13.txt |
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| 2017-11-21 19:49:21 |
Andrew Cloke |
bug |
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added subscriber Andrew Cloke |
| 2017-11-21 20:44:19 |
Rod Smith |
attachment added |
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dmesg output on another system that hangs in a similar way https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1733662/+attachment/5012437/+files/feebas-dmesg.txt |
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| 2017-11-21 20:48:58 |
Rod Smith |
attachment added |
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Another dmesg output from feebas https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1733662/+attachment/5012438/+files/feebas-dmesg2.txt |
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| 2017-12-01 20:43:58 |
Rod Smith |
attachment added |
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dmesg output from three runs with the 4.15.0-041500rc1 kernel https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1733662/+attachment/5017191/+files/boldore.tgz |
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| 2017-12-01 22:06:17 |
Rod Smith |
attachment added |
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dmesg outputs from several kernels https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1733662/+attachment/5017211/+files/boldore-tests.tgz |
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| 2017-12-19 14:18:11 |
Joseph Salisbury |
bug task added |
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linux (Ubuntu) |
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| 2017-12-19 14:18:20 |
Joseph Salisbury |
linux (Ubuntu): importance |
Undecided |
High |
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| 2017-12-19 14:23:47 |
Joseph Salisbury |
tags |
amd64 apport-bug hwcert-server uec-images xenial |
amd64 apport-bug hwcert-server kernel-da-key performing-bisect uec-images xenial |
|
| 2017-12-19 14:27:13 |
Joseph Salisbury |
nominated for series |
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Ubuntu Bionic |
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| 2017-12-19 14:27:13 |
Joseph Salisbury |
bug task added |
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linux (Ubuntu Bionic) |
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| 2017-12-19 14:27:13 |
Joseph Salisbury |
bug task added |
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linux-hwe (Ubuntu Bionic) |
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| 2017-12-19 14:27:13 |
Joseph Salisbury |
nominated for series |
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Ubuntu Artful |
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| 2017-12-19 14:27:13 |
Joseph Salisbury |
bug task added |
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linux (Ubuntu Artful) |
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| 2017-12-19 14:27:13 |
Joseph Salisbury |
bug task added |
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linux-hwe (Ubuntu Artful) |
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| 2017-12-19 14:27:21 |
Joseph Salisbury |
linux (Ubuntu Artful): status |
New |
Triaged |
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| 2017-12-19 14:27:24 |
Joseph Salisbury |
linux (Ubuntu Bionic): status |
New |
Triaged |
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| 2017-12-19 14:27:27 |
Joseph Salisbury |
linux (Ubuntu Artful): importance |
Undecided |
High |
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| 2017-12-19 14:27:44 |
Joseph Salisbury |
linux (Ubuntu Artful): assignee |
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Joseph Salisbury (jsalisbury) |
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| 2017-12-19 14:27:48 |
Joseph Salisbury |
linux (Ubuntu Bionic): assignee |
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Joseph Salisbury (jsalisbury) |
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| 2017-12-20 14:33:21 |
Joseph Salisbury |
linux (Ubuntu Artful): status |
Triaged |
In Progress |
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| 2017-12-20 14:33:24 |
Joseph Salisbury |
linux (Ubuntu Bionic): status |
Triaged |
In Progress |
|
| 2018-01-11 00:51:26 |
Launchpad Janitor |
linux-hwe (Ubuntu): status |
New |
Confirmed |
|
| 2018-01-11 00:51:26 |
Launchpad Janitor |
linux-hwe (Ubuntu Artful): status |
New |
Confirmed |
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| 2018-01-12 16:21:39 |
Joseph Salisbury |
summary |
System hang with Linux kernel 4.13, not with 4.10 |
System hang with Linux kernel due to mainline commit 24247aeeabe |
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| 2018-01-18 15:52:21 |
Joseph Salisbury |
bug task deleted |
linux-hwe (Ubuntu) |
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| 2018-01-18 15:52:40 |
Joseph Salisbury |
bug task deleted |
linux-hwe (Ubuntu Artful) |
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| 2018-01-18 15:52:46 |
Joseph Salisbury |
bug task deleted |
linux-hwe (Ubuntu Bionic) |
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| 2018-01-19 14:46:16 |
Joseph Salisbury |
description |
In doing Ubuntu 17.10 regression testing, we've encountered one computer (boldore, a Cisco UCS C240 M4 [VIC]), that hangs about one in four times when running our cpu_offlining test. This test attempts to take all the CPU cores offline except one, then brings them back online again. This test ran successfully on boldore with previous releases, but with 17.10, the system sometimes (about one in four runs) hangs. Reverting to Ubuntu 16.04.3, I found no problems; but when I upgraded the 16.04.3 installation to linux-image-4.13.0-16-generic, the problem appeared again, so I'm confident this is a problem with the kernel. I'm attaching two files, dmesg-output-4.10.txt and dmesg-output-4.13.txt, which show the dmesg output that appears when running the cpu_offlining test with 4.10.0-38 and 4.13.0-16 kernels, respectively; the system hung on the 4.13 run. (I was running "dmesg -w" in a second SSH login; the files are cut-and-pasted from that.)
I initiated this bug report from an Ubuntu 16.04.3 installation running a 4.10 kernel; but as I said, this applies to the 4.13 kernel.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.10.0-38-generic 4.10.0-38.42~16.04.1
ProcVersionSignature: User Name 4.10.0-38.42~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Tue Nov 21 17:36:06 2017
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install) |
== SRU Justification ==
The following mainline commit introduced a regression in v4.14-rc1:
24247aeeabe9 ("x86/intel_rdt/cqm: Improve limbo list processing")
This commit made it's way into Artful via Launchpad bug 1591609 as Artful commit
ac2fc5adab0f4b.
This bug was causing regression tests to hang about one in four
times when running cpu_offlining tests.
This patch to fix this regression was just submitted to mainline, so it is also
needed in Bionic.
== Fix ==
commit d47924417319e3b6a728c0b690f183e75bc2a702
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Tue Jan 16 19:59:59 2018 +0100
x86/intel_rdt/cqm: Prevent use after free
== Regression Potential ==
Low. This patch fixes a current regression that is a use after free.
### Original Bug Description ###
In doing Ubuntu 17.10 regression testing, we've encountered one computer (boldore, a Cisco UCS C240 M4 [VIC]), that hangs about one in four times when running our cpu_offlining test. This test attempts to take all the CPU cores offline except one, then brings them back online again. This test ran successfully on boldore with previous releases, but with 17.10, the system sometimes (about one in four runs) hangs. Reverting to Ubuntu 16.04.3, I found no problems; but when I upgraded the 16.04.3 installation to linux-image-4.13.0-16-generic, the problem appeared again, so I'm confident this is a problem with the kernel. I'm attaching two files, dmesg-output-4.10.txt and dmesg-output-4.13.txt, which show the dmesg output that appears when running the cpu_offlining test with 4.10.0-38 and 4.13.0-16 kernels, respectively; the system hung on the 4.13 run. (I was running "dmesg -w" in a second SSH login; the files are cut-and-pasted from that.)
I initiated this bug report from an Ubuntu 16.04.3 installation running a 4.10 kernel; but as I said, this applies to the 4.13 kernel.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.10.0-38-generic 4.10.0-38.42~16.04.1
ProcVersionSignature: User Name 4.10.0-38.42~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Tue Nov 21 17:36:06 2017
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install) |
|
| 2018-01-19 15:48:32 |
Seth Forshee |
linux (Ubuntu Bionic): status |
In Progress |
Fix Committed |
|
| 2018-02-04 01:18:50 |
Khaled El Mously |
linux (Ubuntu Artful): status |
In Progress |
Fix Committed |
|
| 2018-03-07 10:09:07 |
Joseph Salisbury |
linux (Ubuntu Artful): status |
Fix Committed |
In Progress |
|
| 2018-03-08 08:26:41 |
Joseph Salisbury |
linux (Ubuntu Artful): status |
In Progress |
Fix Committed |
|
| 2018-03-19 10:57:23 |
Stefan Bader |
tags |
amd64 apport-bug hwcert-server kernel-da-key performing-bisect uec-images xenial |
amd64 apport-bug hwcert-server kernel-da-key performing-bisect uec-images verification-needed-artful xenial |
|
| 2018-03-20 15:17:11 |
Rod Smith |
tags |
amd64 apport-bug hwcert-server kernel-da-key performing-bisect uec-images verification-needed-artful xenial |
amd64 apport-bug hwcert-server kernel-da-key performing-bisect uec-images verification-done-artful xenial |
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| 2018-03-22 12:05:20 |
Janåke Rönnblom |
bug |
|
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added subscriber Janåke Rönnblom |
| 2018-04-03 14:10:10 |
Launchpad Janitor |
linux (Ubuntu Artful): status |
Fix Committed |
Fix Released |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
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2017-0861 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2017-1000407 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2017-15129 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
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2017-16994 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
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2017-17448 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
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2017-17450 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2017-17741 |
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| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2017-17805 |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2017-17806 |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2017-17807 |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2018-1000026 |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
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2018-5332 |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2018-5333 |
|
| 2018-04-03 14:10:10 |
Launchpad Janitor |
cve linked |
|
2018-5344 |
|
| 2019-10-03 08:17:28 |
Po-Hsu Lin |
linux (Ubuntu): status |
Fix Committed |
Fix Released |
|
| 2020-03-03 10:58:28 |
Jeff Lane |
tags |
amd64 apport-bug hwcert-server kernel-da-key performing-bisect uec-images verification-done-artful xenial |
amd64 apport-bug kernel-da-key performing-bisect uec-images verification-done-artful xenial |
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