Redpine: Observed kernel panic while running wireless regressions tests
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Critical
|
Unassigned | ||
Xenial |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
SRU Justification:
------------------
Impact:
Kernel freezes/panic when running wireless tests
Test case:
1. Create a wireless soft-ap/station upon reboot.
2. Install Checkbox plano and :
$ sudo snap install --devmode checkbox-plano
3. Run below wifi-ap test case
$ checkbox-
4. Upon 3-4 iteraions, observed kernel crash as below,
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff810a6
PGD 0
Oops: 0002 [#1] SMP
CPU: 0 PID: 6502 Comm: rmmod Tainted: G OE 4.4.0-128-generic #154-Ubuntu
Hardware name: Dell Inc. Edge Gateway 3003/ , BIOS 01.00.00 04/17/2017
Stack:
Call Trace:
Fix:
kthread_stop() is taking care of wait_for_
No need of taking care separately.
Issue is resolved by removing wait_for_
Regression Petential:
Ran Step 3 in 30-times. Didn't see any kernel panic.
This bug is for tracking purposes only, please don't triage.
CVE References
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
importance: | Undecided → Critical |
Changed in linux (Ubuntu Xenial): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu): | |
status: | Confirmed → Fix Released |
tags: | added: cscc |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1777858
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.