I ran into this bug with today's update to kernel 4.15.0-29. I had no problem previously using the 4.15.0-24 kernel. The bug reporter automatically directed me to this bug report. I see similar issues, where my wifi adapter seems to have disappeared. I have not yet tried the workaround.
The relevant part of the message: Setting up linux-modules-extra-4.15.0-29-generic (4.15.0-29.31~16.04.1) ... Setting up linux-image-generic-hwe-16.04 (4.15.0.29.51) ... Setting up linux-headers-4.15.0-29 (4.15.0-29.31~16.04.1) ... Setting up linux-headers-4.15.0-29-generic (4.15.0-29.31~16.04.1) ... /etc/kernel/header_postinst.d/dkms: Error! Bad return status for module build on kernel: 4.15.0-29-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information. Setting up linux-headers-generic-hwe-16.04 (4.15.0.29.51) ... Setting up linux-generic-hwe-16.04 (4.15.0.29.51) ... Processing triggers for linux-image-4.15.0-29-generic (4.15.0-29.31~16.04.1) ... /etc/kernel/postinst.d/dkms: ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/bcmwl-kernel-source.0.crash' Error! Bad return status for module build on kernel: 4.15.0-29-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information. -- 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/1757008 Title: Broadcom wireless drivers failed to build [error: implicit declaration of function ‘init_timer’] Status in Broadcom 802.11 Linux STA driver: New Status in bcmwl package in Ubuntu: Confirmed Status in broadcom-sta package in Ubuntu: Confirmed Bug description: The module fails to build, as it is missing the necessary patches for the latest HWE kernel. /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_init_timer’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2359:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration] init_timer(&t->timer); ^ ProblemType: Package DistroRelease: Ubuntu 16.04 Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1~1.2 ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13 Uname: Linux 4.13.0-36-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 DKMSKernelVersion: 4.15.0-13-generic Date: Mon Mar 19 15:02:46 2018 DuplicateSignature: dkms:bcmwl-kernel-source:6.30.223.271+bdcom-0ubuntu1~1.2:/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:2359:2: error: implicit declaration of function ‘init_timer’ [-Werror=implicit-function-declaration] InstallationDate: Installed on 2017-06-05 (287 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) PackageVersion: 6.30.223.271+bdcom-0ubuntu1~1.2 RelatedPackageVersions: dpkg 1.18.4ubuntu1.4 apt 1.2.26 SourcePackage: bcmwl Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1~1.2: 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/broadcom-sta/+bug/1757008/+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
