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[Bug 1360783] Re: 14e4:4315 [Dell Studio 1558] Broadcom wifi crash in bcmwl-kernel-source cfg80211

 

Andre... thank you very much for letting me know about the patch.

I have applied it because I have been suffering from occasional random
loss of connectivity to my own wifi routers.

I have not yet encountered another router that triggers the original
crash that I reported in this particular bug, so I am unable to test it
fully. However, I hope it fixes the loss of connection problems at home.
I will report my experiences against your bug after a few days of
testing.

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https://bugs.launchpad.net/bugs/1360783

Title:
  14e4:4315 [Dell Studio 1558] Broadcom wifi crash in bcmwl-kernel-
  source cfg80211

Status in bcmwl package in Ubuntu:
  Incomplete

Bug description:
  1) lsb_release -rd
  Description: Ubuntu 14.04.1 LTS
  Release: 14.04

  2) apt-cache policy bcmwl-kernel-source
  bcmwl-kernel-source:
    Installed: 6.30.223.141+bdcom-0ubuntu2
    Candidate: 6.30.223.141+bdcom-0ubuntu2
    Version table:
   *** 6.30.223.141+bdcom-0ubuntu2 0
          500 http://ubuntu.mirror.serversaustralia.com.au/ubuntu/ trusty/restricted i386 Packages
          100 /var/lib/dpkg/status

  uname -a
  Linux bacchus 3.13.0-37-lowlatency #64-Ubuntu SMP PREEMPT Mon Sep 22 22:00:49 UTC 2014 i686 i686 i686 GNU/Linux

  3) What is expected to happen with my Dell Studio 1558 is that when
  using wifi hotspots away from home, it works without problem.

  4) What happens instead is that the the system never makes a connection, and there is a crash in syslog:
  https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1360783/+attachment/4185818/+files/wifi-crash-westHants-syslog-extract

  The system is resuming after suspend. However, I have seen similar
  crashes after simply powering on, and in more than one hot spot.

  04:00.0 Network controller [0280]: Broadcom Corporation BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)
   Subsystem: Dell Wireless 1397 WLAN Mini-Card [1028:000c]
   Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
   Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
   Latency: 0, Cache Line Size: 64 bytes
   Interrupt: pin A routed to IRQ 17
   Region 0: Memory at f0500000 (64-bit, non-prefetchable) [size=16K]
   Capabilities: <access denied>
   Kernel driver in use: wl

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