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[Brian Burch <1156138@xxxxxxxxxxxxxxxxxx>]

I don't know whether update-initramfs was necessary, but it certainly
didn't do any harm!

The low-latency dmesg now shows the wl and cfg80211 modules are being
loaded, but there is a problem:

[   24.624284] wl: module license 'MIXED/Proprietary' taints kernel.
[   24.624290] Disabling lock debugging due to kernel taint
[   24.626241] wl: Unknown symbol rcu_read_unlock_special (err 0)

The unlnown symbol is the same as in the warning I noticed in the dkms
install log, so it is important after all...

Also, once the system has booted lsmod does not show the wl module any
more, and the eth1 interface does not exist.

I will do some research on that symbol in the bcmwl patch.

-- 
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Packages, which is subscribed to bcmwl in Ubuntu.
https://bugs.launchpad.net/bugs/1156138

Title:
  bcmwl-kernel-source fails to build on lowlatency kernel [FATAL:
  modpost: GPL-incompatible module wl.ko uses GPL-only symbol
  '__rcu_read_unlock']

Status in “bcmwl” package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 13.04

  ProblemType: Package
  DistroRelease: Ubuntu 13.04
  Package: bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu6
  ProcVersionSignature: Ubuntu 3.8.0-13.22-generic 3.8.3
  Uname: Linux 3.8.0-13-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.9.1-0ubuntu1
  Architecture: i386
  DKMSKernelVersion: 3.8.0-12-lowlatency
  Date: Sat Mar 16 23:37:03 2013
  InstallationDate: Installed on 2013-01-03 (72 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
  MarkForUpload: True
  PackageVersion: 6.20.155.1+bdcom-0ubuntu6
  SourcePackage: bcmwl
  Title: bcmwl-kernel-source 6.20.155.1+bdcom-0ubuntu6: bcmwl kernel module failed to build
  UpgradeStatus: Upgraded to raring on 2013-03-12 (4 days ago)

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