| 2020-11-09 21:45:39 |
Wren Turkal |
bug |
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added bug |
| 2020-11-10 02:23:55 |
Po-Hsu Lin |
bug |
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added subscriber Po-Hsu Lin |
| 2020-11-10 02:24:17 |
Po-Hsu Lin |
linux-signed-hwe (Ubuntu): status |
New |
Incomplete |
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| 2020-11-16 03:52:17 |
Po-Hsu Lin |
linux-signed-hwe (Ubuntu): status |
Incomplete |
Confirmed |
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| 2020-11-16 05:18:57 |
Po-Hsu Lin |
affects |
linux-signed-hwe (Ubuntu) |
linux (Ubuntu) |
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| 2020-11-16 05:19:33 |
Po-Hsu Lin |
nominated for series |
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Ubuntu Bionic |
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| 2020-11-16 05:19:33 |
Po-Hsu Lin |
bug task added |
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linux (Ubuntu Bionic) |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
nominated for series |
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Ubuntu Focal |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
bug task added |
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linux (Ubuntu Focal) |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
nominated for series |
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Ubuntu Hirsute |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
bug task added |
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linux (Ubuntu Hirsute) |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
nominated for series |
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Ubuntu Xenial |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
bug task added |
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linux (Ubuntu Xenial) |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
nominated for series |
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Ubuntu Groovy |
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| 2020-11-27 11:48:23 |
Po-Hsu Lin |
bug task added |
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linux (Ubuntu Groovy) |
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| 2020-11-27 11:48:43 |
Po-Hsu Lin |
description |
This appears to be a problem in the ath10k module. I am not sure what it is exactly.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-122-generic 4.15.0-122.124~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-122.124~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-122-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.26
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Nov 9 13:35:54 2020
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-xenial-amd64-20160624-2
InstallationDate: Installed on 2020-11-09 (0 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install) |
== SRU Justification ==
Whenever a buggy NAPI driver returns more than its budget, it will
trigger a stack trace warning with:
WARN_ON_ONCE(work > weight);
The warning message looks like this :
WARNING: CPU: 2 PID: 0 at /build/linux-hwe-ymdo11/linux-hwe-4.15.0/net/core/dev.c:5672 net_rx_action+0x276/0x3b0
This is not very useful for debugging purpose, since it does not tell
you what's going on there.
== Fix ==
* 427d5838e996 ("net: napi: remove useless stack trace")
This patch will emit a message giving the function name, and a
descriptive message like:
NAPI poll function ath10k_pci_napi_poll+0x0/0x120 [ath10k_pci] returned 0, exceeding its budget of 64.
This patch is a clean-cherry for all the releases except Xenial.
For Xenial it will need to be applied with -C1
== Test ==
Test kernels can be found here:
https://people.canonical.com/~phlin/kernel/lp-1903596-napi-warnon/
Please note that even though I tried to reproduce this on a XPS 13
9360 mentioned in this bug report that shipped with Atheros QCA6174
[168c:003e] wireless card, but I can't trigger this warning message.
The bug opener is also unable to test this due to some other reasons.
Howeve I did tried to trigger this warning forcibly by putting it
outside the if statement with the test kernels in the following link
to make sure it won't cause some other problem.
https://people.canonical.com/~phlin/kernel/lp-1903596-napi-warnon/force-to-warn/
== Where problems could occur ==
For this bug itself, this patch does not really solve the problem
but it will provide more debug information for developers in the
future (and since this is just a warning message, it should be fine).
We can expect to see more a detailed report against ath10k driver
in the future on launchpad.
== Original Bug Report ==
This appears to be a problem in the ath10k module. I am not sure what it is exactly.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-122-generic 4.15.0-122.124~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-122.124~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-122-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.26
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Nov 9 13:35:54 2020
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-xenial-amd64-20160624-2
InstallationDate: Installed on 2020-11-09 (0 days ago)
InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install) |
|
| 2020-11-30 07:39:53 |
Stefan Bader |
linux (Ubuntu Groovy): importance |
Undecided |
Low |
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| 2020-11-30 07:39:53 |
Stefan Bader |
linux (Ubuntu Groovy): status |
New |
In Progress |
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| 2020-11-30 07:40:05 |
Stefan Bader |
linux (Ubuntu Focal): importance |
Undecided |
Low |
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| 2020-11-30 07:40:05 |
Stefan Bader |
linux (Ubuntu Focal): status |
New |
In Progress |
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| 2020-11-30 07:40:21 |
Stefan Bader |
linux (Ubuntu Bionic): importance |
Undecided |
Low |
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| 2020-11-30 07:40:21 |
Stefan Bader |
linux (Ubuntu Bionic): status |
New |
In Progress |
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| 2020-11-30 07:40:43 |
Stefan Bader |
linux (Ubuntu Xenial): importance |
Undecided |
Low |
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| 2020-11-30 07:40:43 |
Stefan Bader |
linux (Ubuntu Xenial): status |
New |
In Progress |
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| 2020-12-08 18:07:43 |
Ian May |
linux (Ubuntu Xenial): status |
In Progress |
Fix Committed |
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| 2020-12-08 18:07:48 |
Ian May |
linux (Ubuntu Bionic): status |
In Progress |
Fix Committed |
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| 2020-12-08 18:07:51 |
Ian May |
linux (Ubuntu Focal): status |
In Progress |
Fix Committed |
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| 2020-12-08 18:07:55 |
Ian May |
linux (Ubuntu Groovy): status |
In Progress |
Fix Committed |
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| 2021-01-06 16:27:56 |
Ubuntu Kernel Bot |
tags |
amd64 apport-bug xenial |
amd64 apport-bug verification-needed-xenial xenial |
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| 2021-01-11 17:37:40 |
Ubuntu Kernel Bot |
tags |
amd64 apport-bug verification-needed-xenial xenial |
amd64 apport-bug verification-needed-bionic verification-needed-xenial xenial |
|
| 2021-01-18 04:56:26 |
Po-Hsu Lin |
linux (Ubuntu Hirsute): status |
Confirmed |
In Progress |
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| 2021-01-18 04:56:54 |
Po-Hsu Lin |
linux (Ubuntu Xenial): assignee |
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Po-Hsu Lin (cypressyew) |
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| 2021-01-18 04:56:56 |
Po-Hsu Lin |
linux (Ubuntu Bionic): assignee |
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Po-Hsu Lin (cypressyew) |
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| 2021-01-18 04:56:58 |
Po-Hsu Lin |
linux (Ubuntu Focal): assignee |
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Po-Hsu Lin (cypressyew) |
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| 2021-01-18 04:56:59 |
Po-Hsu Lin |
linux (Ubuntu Groovy): assignee |
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Po-Hsu Lin (cypressyew) |
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| 2021-01-18 04:57:00 |
Po-Hsu Lin |
linux (Ubuntu Hirsute): assignee |
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Po-Hsu Lin (cypressyew) |
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| 2021-01-26 04:58:53 |
Po-Hsu Lin |
attachment added |
|
X https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1903596/+attachment/5456919/+files/X |
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| 2021-01-26 04:59:05 |
Po-Hsu Lin |
tags |
amd64 apport-bug verification-needed-bionic verification-needed-xenial xenial |
amd64 apport-bug verification-done-xenial verification-needed-bionic xenial |
|
| 2021-01-26 05:37:33 |
Po-Hsu Lin |
attachment added |
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B https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1903596/+attachment/5456936/+files/B |
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| 2021-01-26 05:37:43 |
Po-Hsu Lin |
tags |
amd64 apport-bug verification-done-xenial verification-needed-bionic xenial |
amd64 apport-bug verification-done-bionic verification-done-xenial xenial |
|
| 2021-01-26 21:44:15 |
Launchpad Janitor |
linux (Ubuntu Bionic): status |
Fix Committed |
Fix Released |
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| 2021-01-26 21:44:15 |
Launchpad Janitor |
cve linked |
|
2020-27777 |
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| 2021-01-26 21:55:49 |
Launchpad Janitor |
linux (Ubuntu Xenial): status |
Fix Committed |
Fix Released |
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| 2021-01-29 07:38:32 |
Ubuntu Kernel Bot |
tags |
amd64 apport-bug verification-done-bionic verification-done-xenial xenial |
amd64 apport-bug verification-done-bionic verification-done-xenial verification-needed-groovy xenial |
|
| 2021-02-05 10:18:20 |
Ubuntu Kernel Bot |
tags |
amd64 apport-bug verification-done-bionic verification-done-xenial verification-needed-groovy xenial |
amd64 apport-bug verification-done-bionic verification-done-xenial verification-needed-focal verification-needed-groovy xenial |
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| 2021-02-22 03:59:44 |
Po-Hsu Lin |
attachment added |
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G https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1903596/+attachment/5465825/+files/G |
|
| 2021-02-22 03:59:53 |
Po-Hsu Lin |
tags |
amd64 apport-bug verification-done-bionic verification-done-xenial verification-needed-focal verification-needed-groovy xenial |
amd64 apport-bug verification-done-bionic verification-done-groovy verification-done-xenial verification-needed-focal xenial |
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| 2021-02-22 04:05:52 |
Po-Hsu Lin |
attachment added |
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F https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1903596/+attachment/5465826/+files/F |
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| 2021-02-22 04:06:29 |
Po-Hsu Lin |
tags |
amd64 apport-bug verification-done-bionic verification-done-groovy verification-done-xenial verification-needed-focal xenial |
amd64 apport-bug verification-done-bionic verification-done-focal verification-done-groovy verification-done-xenial xenial |
|
| 2021-02-23 16:16:31 |
Launchpad Janitor |
linux (Ubuntu Focal): status |
Fix Committed |
Fix Released |
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| 2021-02-23 16:16:31 |
Launchpad Janitor |
cve linked |
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2020-29372 |
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| 2021-02-23 16:22:36 |
Launchpad Janitor |
linux (Ubuntu Groovy): status |
Fix Committed |
Fix Released |
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| 2021-02-23 16:22:36 |
Launchpad Janitor |
cve linked |
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2020-28974 |
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| 2021-03-12 08:07:10 |
Po-Hsu Lin |
linux (Ubuntu Hirsute): assignee |
Po-Hsu Lin (cypressyew) |
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| 2021-03-12 08:07:12 |
Po-Hsu Lin |
linux (Ubuntu Hirsute): status |
In Progress |
Fix Released |
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