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[Launchpad Bug Tracker <1415880@xxxxxxxxxxxxxxxxxx>]

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[Impact]

 * bcmwl does not compile on new kernels (or HWE kernels)
 * bcmwl suffers from null reference bug 

[Test Case]

 * public PPA provided to community and feedback
 * based on patch available to other distros
 * comment #42

[Regression Potential]

 * for changes on kernel support it may not compile (tested with 3.2, 3.13, 3.18 and 4.2)
 * for the null reference change -> proved to fix problem for community based on feedback

[Other Info]

Original bug description:

The bcmwl package as of now misses one patch for a bug that occurs with
BCM43142 and possibly other broadcom chipsets that will look like random
disconnects, poor wifi signal and kernel warnings, See also #1379524.

Adding the patch is a fairly simple process:

* put the patch file in /usr/src/bcmwl-6.30.223.248+bdcom/patches
* add the following line to  /usr/src/bcmwl-6.30.223.248+bdcom/dkms.conf
PATCH[7]="0014-null-pointer-crash.patch"
* run: /usr/lib/dkms/common.postinst bcmwl 6.30.223.248+bdcom /usr/share/bcmwl x86_64 $(uname -r)

This has fixed the issue for me. Edit: I just wanted to add that I did
not write the patch; I merely downloaded it from a paste that was linked
from the respective AUR package.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu1 [modified: usr/src/bcmwl-6.30.223.248+bdcom/dkms.conf]
ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
Uname: Linux 3.16.0-29-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
CurrentDesktop: LXDE
Date: Thu Jan 29 13:15:17 2015
InstallationDate: Installed on 2015-01-26 (3 days ago)
InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubuntu-translations
     Importance: Undecided
         Status: Confirmed

** Affects: bcmwl (Ubuntu)
     Importance: High
     Assignee: Rafael David Tinoco (inaddy)
         Status: Fix Released

** Affects: bcmwl (Ubuntu Precise)
     Importance: High
     Assignee: Rafael David Tinoco (inaddy)
         Status: Won't Fix

** Affects: bcmwl (Ubuntu Trusty)
     Importance: High
         Status: Fix Committed

** Affects: bcmwl (Ubuntu Vivid)
     Importance: High
     Assignee: Rafael David Tinoco (inaddy)
         Status: Won't Fix

** Affects: bcmwl (Ubuntu Wily)
     Importance: High
     Assignee: Rafael David Tinoco (inaddy)
         Status: Fix Released


** Tags: amd64 apport-bug iso-testing latest-bios-8dcn40ww patch removal-candidate utopic verification-needed vivid
-- 
14e4:4365 bcmwl-kernel source: fix for null pointer crash
https://bugs.launchpad.net/bugs/1415880
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