kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Description changed:

- lspci shows: Network controller: Broadcom Corporation BCM4312 802.11b/g
- LP-PHY (rev 01)
+ 1) lsb_release -rd
+ Description: Ubuntu 14.04.1 LTS
+ Release: 14.04
  
- lsb_release: Ubuntu 14.04.1 LTS (actually UbuntuStudio)
+ 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
  
- Linux version 3.13.0-34-lowlatency
+ 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
  
- Dell Studio 1558 with Intel CPU in i386 mode and four CPUs.
+ 3) What is expected to happen with my Dell Studio 1558 is that when
+ using wifi hotspots away from home, it works without problem.
  
- Most of the time wifi works perfectly. Occasionally, when using wifi
- hotspots away from home, the system never makes a connection. Usually I
- see similar stack traces in the syslog, but the attached extract is the
- only example I have to hand.
+ 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, but I do not believe that aspect
- is relevant. I have seen similar crashes after powering on, and (to
- repeat myself) in more than one hot spot. I suspect there is an edge
- case in negotiating with some wifi routers that is not handled properly.
- (Perhaps I am prejudiced, but I get the feeling that the problem routers
- are in iPhone-friendly environments).
+ 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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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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