This bug has re-appeared yesterday on my 14.04 installation with the upgrade from kernel 4.4.0-62 to 4.4.0-63.
I've attached the crash log. ** Attachment added: "bcmwl-kernel-source.0.crash" https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1251037/+attachment/4818219/+files/bcmwl-kernel-source.0.crash -- 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/1251037 Title: bcmwl-kernel-source 6.30.223.141+bdcom-0ubuntu1: bcmwl kernel module failed to build [Makefile: No such file or directory] Status in bcmwl package in Ubuntu: Confirmed Bug description: / ProblemType: Package DistroRelease: Ubuntu 14.04 Package: bcmwl-kernel-source 6.30.223.141+bdcom-0ubuntu1 Uname: Linux 3.12.0-031200-generic i686 ApportVersion: 2.12.6-0ubuntu1 Architecture: i386 DKMSKernelVersion: 3.12.0-031200-generic Date: Wed Nov 13 23:02:12 2013 InstallationDate: Installed on 2013-11-09 (4 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20131108) MarkForUpload: True PackageVersion: 6.30.223.141+bdcom-0ubuntu1 SourcePackage: bcmwl Title: bcmwl-kernel-source 6.30.223.141+bdcom-0ubuntu1: bcmwl kernel module failed to build UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1251037/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp