← Back to team overview

kernel-packages team mailing list archive

[Bug 1415880] Re: 14e4:4365 bcmwl-kernel source: fix for null pointer crash


Hi, don't know where to post this (and my English is not so good,
sorry), but: i have the same problems with my bcm43142 (HP G4 250
laptop) + (4.4.0-24-generic #43-Ubuntu 16.04 64'bit' GNU/Linux) - it
drops connections per "any random time". Today (after many days of
wifipain) I've seem that ping drop so many packages, BUT not for the
first time - ONLY when u start ping anywhere for the second time after
`modprobe or .. wifi goes on?` ! So i have decided to check if terminal
will always ping ( * my router ip, cause don't be banned by anybody, of
couse) and what i've seen: NO DROPPING while pinging. at all. (also
packets AND wifi connection i mean + wifi signal meters "don't jump").
(64 bytes from icmp_seq=6338 ttl=64 time=0.628 ms). but.
Before this i disabled ipv6 and don't change it back.. Tomorrow will
check with ipv6 and other options.. I know this is not a cure, but it's
working for me. What do next if i can help?

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to bcmwl in Ubuntu.

  14e4:4365 bcmwl-kernel source: fix for null pointer crash

Status in Dell Sputnik:
Status in bcmwl package in Ubuntu:
  Fix Released
Status in bcmwl source package in Precise:
  Fix Committed
Status in bcmwl source package in Vivid:
  Won't Fix
Status in bcmwl source package in Wily:
  Fix Released

Bug description:

   * 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

  Adding the patch is a fairly simple process:

  * put the patch file in /usr/src/bcmwl-
  * add the following line to  /usr/src/bcmwl-
  * run: /usr/lib/dkms/common.postinst bcmwl /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 [modified: usr/src/bcmwl-]
  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)

To manage notifications about this bug go to: