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[Bug 1523161] Re: [Worked around]BCM43142 802.11b/g/n (rev 01) wifi adapter random freezes. Possibly affects more broadcom devices.

 

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: bcmwl (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1523161

Title:
  [Worked around]BCM43142 802.11b/g/n (rev 01) wifi adapter random
  freezes. Possibly affects more broadcom devices.

Status in Linux Mint:
  New
Status in bcmwl package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  I've experienced random timeouts on BCM43142 802.11b/g/n (rev 01)
  adapter on Lenovo Z50-70 laptop.

  The flow is as follows: on startup I _always_ have a connection to my
  network. I use up some traffic, then suddenly packet loss rate climbs
  up, then maybe goes down, then up again and the connection becomes
  effectively unresponsive. The device is still connected to the
  network. Some packets, actually, even may slip through.

  After reconnection (rmmod wl -> modprobe wl), it stabilizes a bit, but
  then it occurs again.

  It seems that the probability of such an issue increases with the
  number of programs that are using connection.

  I have removed all drivers but bcmwl-kernel-sources and blacklisted
  their modules:

  (from /etc/modprobe.d/blacklist.conf)

  blacklist ideapad_laptop
  blacklist ssb
  blacklist bcma
  blacklist b43
  blacklist brcmsmac
  blacklist b43legacy
  blacklist ndiswrapper

  I wasn't able to find a root cause of it, but it happens really often.
  Two times when I wrote this message, actually.

  I am running Mint 17.3 'Rosa'

  I have bcmwl-kernel-sources 6.30.223.248+bdcom-0ubuntu0.2~lp1415880~1

  I tried other versions, but not succeeded. The issue makes the wifi
  adapter effectively unusable.

  uname -a
  Linux dsmdmini-mint 4.2.0-19-generic #23~14.04.1-Ubuntu SMP Thu Nov 12 12:33:30 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  lsmod
  Module                  Size  Used by
  lib80211_crypt_tkip    20480  0
  lib80211               16384  1 lib80211_crypt_tkip
  wl                   6365184  0
  cfg80211              540672  1 wl
  bbswitch               16384  0
  intel_rapl             20480  0
  iosf_mbi               16384  1 intel_rapl
  x86_pkg_temp_thermal    16384  0
  intel_powerclamp       16384  0
  coretemp               16384  0
  rfcomm                 69632  0
  bnep                   20480  2
  uvcvideo               90112  0
  videobuf2_vmalloc      16384  1 uvcvideo
  bluetooth             512000  10 bnep,rfcomm
  videobuf2_memops       16384  1 videobuf2_vmalloc
  rtsx_usb_ms            20480  0
  nvidia               8642560  33
  kvm                   507904  0
  videobuf2_core         49152  1 uvcvideo
  v4l2_common            16384  1 videobuf2_core
  videodev              172032  3 uvcvideo,v4l2_common,videobuf2_core
  media                  24576  2 uvcvideo,videodev
  memstick               20480  1 rtsx_usb_ms
  crct10dif_pclmul       16384  0
  crc32_pclmul           16384  0
  aesni_intel           167936  0
  aes_x86_64             20480  1 aesni_intel
  snd_soc_rt5640        114688  0
  lrw                    16384  1 aesni_intel
  snd_soc_rl6231         16384  1 snd_soc_rt5640
  gf128mul               16384  1 lrw
  glue_helper            16384  1 aesni_intel
  snd_soc_core          200704  1 snd_soc_rt5640
  ablk_helper            16384  1 aesni_intel
  snd_hda_codec_hdmi     49152  1
  cryptd                 20480  2 aesni_intel,ablk_helper
  snd_compress           20480  1 snd_soc_core
  binfmt_misc            20480  1
  snd_hda_codec_conexant    24576  1
  ac97_bus               16384  1 snd_soc_core
  snd_pcm_dmaengine      16384  1 snd_soc_core
  snd_hda_codec_generic    73728  1 snd_hda_codec_conexant
  input_leds             16384  0
  joydev                 20480  0
  snd_seq_midi           16384  0
  snd_seq_midi_event     16384  1 snd_seq_midi
  snd_hda_intel          36864  5
  serio_raw              16384  0
  snd_hda_codec         135168  4 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel
  snd_hda_core           65536  5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
  snd_rawmidi            32768  1 snd_seq_midi
  snd_hwdep              16384  1 snd_hda_codec
  mei_me                 32768  0
  lpc_ich                24576  0
  snd_pcm               102400  7 snd_soc_rt5640,snd_soc_core,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_pcm_dmaengine,snd_hda_core
  mei                    98304  1 mei_me
  shpchp                 36864  0
  snd_seq                69632  2 snd_seq_midi_event,snd_seq_midi
  snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
  snd_timer              32768  2 snd_pcm,snd_seq
  snd                    81920  23 snd_soc_core,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_compress
  ppdev                  20480  0
  i2c_hid                20480  0
  dm_multipath           24576  0
  soundcore              16384  1 snd
  dw_dmac                16384  0
  scsi_dh                16384  1 dm_multipath
  wmi                    20480  0
  dw_dmac_core           24576  1 dw_dmac
  snd_soc_sst_acpi       16384  0
  i2c_designware_platform    16384  0
  parport_pc             32768  0
  i2c_designware_core    16384  1 i2c_designware_platform
  8250_fintek            16384  0
  spi_pxa2xx_platform    24576  0
  soc_button_array       16384  0
  8250_dw                16384  0
  lp                     20480  0
  mac_hid                16384  0
  parport                49152  3 lp,ppdev,parport_pc
  btrfs                 950272  0
  xor                    24576  1 btrfs
  raid6_pq              102400  1 btrfs
  dm_mirror              24576  0
  dm_region_hash         20480  1 dm_mirror
  dm_log                 20480  2 dm_region_hash,dm_mirror
  rtsx_usb_sdmmc         28672  0
  rtsx_usb               24576  2 rtsx_usb_sdmmc,rtsx_usb_ms
  hid_generic            16384  0
  usbhid                 49152  0
  hid                   118784  3 i2c_hid,hid_generic,usbhid
  i915                 1126400  3
  i2c_algo_bit           16384  1 i915
  drm_kms_helper        126976  1 i915
  psmouse               126976  0
  drm                   360448  7 i915,drm_kms_helper,nvidia
  ahci                   36864  1
  r8169                  81920  0
  libahci                32768  1 ahci
  mii                    16384  1 r8169
  sdhci_acpi             16384  0
  video                  36864  1 i915
  sdhci                  45056  1 sdhci_acpi


  lspci
  00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
  00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
  00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
  00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
  00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
  00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
  00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
  00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
  00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
  00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
  00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
  00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
  00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
  01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
  02:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
  03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev a2)

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