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[Brian Burch <1156138@xxxxxxxxxxxxxxxxxx>]

I changed my mind after a trip away. When trying to use bcmwl_6.20.155
under the generic kernel, the system was very unreliable and often just
froze.

I noticed the 6.30.223.30 link you gave me was for the amd46 deb, so I
found bcmwl-kernel-source_6.30.223.30+bdcom-0ubuntu3_i386.deb and
installed that version (despite the worrying warning it would replace
6.20.155). I was very disappointed to see the install failed with "the
usual" GPL-incompatible symbol __rcu_read_unblock.

I rebooted to the generic kernel (not really necessary) and dkms status
showed the new module had been added already. I ran a dkms install
against only the generic kernel and that worked fine. After rebooting,
the wifi is working, although I haven't been using it long enough to
comment on its stability.

I feel this is progress. Even though I haven't moved forward, I've
learnt a lot and am now running the latest source. I think I will try
making an 0010 patch file for the low latecy changes.

-- 
You received this bug notification because you are a member of Kernel
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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