Kernel panic on driver rtl8821ae

[Alessandro Sivieri]

Since kernel version 3.13.0-27, my Asus VM40B goes into kernel panic during boot, seemingly due to an error with the WiFi driver, rtl8821ae. The attached screenshot of the screen (I have no idea how to otherwise capture the output of a kernel panic) shows the error with kernel version 3.13.0-29, but it happens exactly the same with -27.

WORKAROUND: Disabling the WiFi card or using version 3.13.0-24 does not cause any problem.

Please bear in mind, while reading the generated report, that I have disabled the WiFi card to be able to boot with kernel -29.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1327741

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Alessandro Sivieri (scattino)]

Log files collected using linux-bug.

[Alessandro Sivieri (scattino)]

Screenshot of the output of the kernel panic

[penalvch (penalvch)]

Alessandro Sivieri, please boot into a working kernel and execute the following at a terminal:
apport-collect 1327741

[Shingo TADA (tada45)]

I have a same problem on my ASUS VivoPC VM40B.

$ uname -a
Linux FIAP-SV-ASUS01 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

[penalvch (penalvch)]

Shingo TADA, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into the default Ubuntu kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Gonçalo Rodrigues (grodrigues-math)]

Same bug here in desktop ASUS M11AD with 3.13.0-30, but not in 3.13.0-24. Solved with 3.14.1 from the trusty mainline kernel.

note:
Cannot collect info with apparmor-collect because it spits out:

ERROR: Could not import module, is a package upgrade in progress? Error: No module named PyQt4.QtCore

[penalvch (penalvch)]

Gonçalo Rodrigues, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into the default Ubuntu kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Jean-Philippe Guérard (fevrier)]

This issue also affects the latest Xubuntu installation image (xubuntu-14.04.1-desktop-amd64.iso), which is not installable on an Asus M11AD.

[penalvch (penalvch)]

Jean-Philippe Guérard, please test Utopic via http://cdimage.ubuntu.com/daily-live/current/ . If reproducible, please file a new report via a terminal:
ubuntu-bug linux

or if you cannot boot via:
https://bugs.launchpad.net/ubuntu/+source/linux/+filebug

[Hugo Costelha (hugo-costelha)]

I just dowloaded the daily image (18/08/2014, 18h GMT) and it does not go into kernel panic. When can we expect these changes in the trusty kernel?

[penalvch (penalvch)]

Hugo Costelha, could you please boot into the daily image, and execute at a terminal:
ubuntu-bug linux

This will allow the necessary debug information to be captured. Please feel free to subscribe me to this new report.

[Hugo Costelha (hugo-costelha)]

I ran the command, but was unable to associate the report to this bug. It was stored as bug #1362648.

[John C Hatch (henwyn)]

This bug also affected me but seems to be fixed in 14.10.

[valerio (passini-valerio)]

This bug is present in kubuntu 14.04.1 LTS too.

[Rene H. Larsen (rhl)]

One of the recent kernel releases (not sure which) fixed rtl8821ae support for me.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]