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[Sinisa <sgujic@xxxxxxxxx>]

Public bug reported:

This annoying bug is found on broadcom drivers for 14e4:4365

i even downloaded and compiled latest broadcom drivers at
http://www.broadcom.com/support/802.11/linux_sta.php

and i applied a patch from here
https://aur.archlinux.org/packages/broadcom-wl/


Its on Ubuntu 3.13.0-32.57-generic 3.13.11.4

What happens is that wireless signal is lost every few minutes,
sometimes on every half hour or so. I guess it depends on strength of
the AP signal.

Also, every signal to AP is show as "weak" no matter how close i am to
the AP it self.

This is from dmesg


[52399.890664] ------------[ cut here ]------------
[52399.890689] WARNING: CPU: 0 PID: 8834 at /build/buildd/linux-3.13.0/net/wireless/sme.c:797 cfg80211_roamed+0x89/0x90 [cfg80211]()
[52399.890690] Modules linked in: wl(POF) snd_usb_audio hid_generic snd_usbmidi_lib ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ebtable_nat ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) bnep rfcomm btusb uvcvideo bluetooth videobuf2_vmalloc videobuf2_memops videobuf2_core videodev hp_wmi sparse_keymap intel_rapl x86_pkg_temp_thermal snd_hda_codec_realtek snd_hda_codec_hdmi intel_powerclamp snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc dm_multipath coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi scsi_dh snd_seq snd_seq_device kvm_intel kvm snd_timer joydev hp_accel snd soundcore lis3lv02d serio_raw input_polldev cfg80211 mei_me mei intel_smartconnect hp_wireless mac_hid lpc_ich parport_pc ppdev lp parport nls_iso8859_1 dm_crypt hid_logitech_dj usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul nouveau glue_helper ablk_helper cryptd i915 psmouse mxm_wmi ahci ttm libahci i2c_algo_bit drm_kms_helper r8169 drm mii video wmi [last unloaded: wl]
[52399.890738] CPU: 0 PID: 8834 Comm: wl_event_handle Tainted: PF       W  O 3.13.0-32-generic #57-Ubuntu
[52399.890739] Hardware name: Hewlett-Packard HP Pavilion 17 Notebook PC /2282, BIOS F.11 08/07/2014
[52399.890741]  0000000000000009 ffff8801627dfdd0 ffffffff8171bcb4 0000000000000000
[52399.890743]  ffff8801627dfe08 ffffffff810676cd ffff88006e692000 ffff880207c6e6c0
[52399.890745]  000000000000009b ffff880207c6ed80 ffff8800360a79f8 ffff8801627dfe18
[52399.890747] Call Trace:
[52399.890754]  [<ffffffff8171bcb4>] dump_stack+0x45/0x56
[52399.890757]  [<ffffffff810676cd>] warn_slowpath_common+0x7d/0xa0
[52399.890759]  [<ffffffff810677aa>] warn_slowpath_null+0x1a/0x20
[52399.890769]  [<ffffffffa03b2509>] cfg80211_roamed+0x89/0x90 [cfg80211]
[52399.890797]  [<ffffffffa084af3b>] wl_notify_roaming_status+0xcb/0x150 [wl]
[52399.890819]  [<ffffffffa0849b72>] wl_event_handler+0x62/0x220 [wl]
[52399.890841]  [<ffffffffa0849b10>] ? wl_cfg80211_resume+0x440/0x440 [wl]
[52399.890844]  [<ffffffff8108b3d2>] kthread+0xd2/0xf0
[52399.890846]  [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
[52399.890849]  [<ffffffff8172c5bc>] ret_from_fork+0x7c/0xb0
[52399.890851]  [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
[52399.890852] ---[ end trace c1a0d29f35c01220 ]---

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1426852

Title:
  broadcom drivers on ubuntu 14.04

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  This annoying bug is found on broadcom drivers for 14e4:4365

  i even downloaded and compiled latest broadcom drivers at
  http://www.broadcom.com/support/802.11/linux_sta.php

  and i applied a patch from here
  https://aur.archlinux.org/packages/broadcom-wl/

  
  Its on Ubuntu 3.13.0-32.57-generic 3.13.11.4

  What happens is that wireless signal is lost every few minutes,
  sometimes on every half hour or so. I guess it depends on strength of
  the AP signal.

  Also, every signal to AP is show as "weak" no matter how close i am to
  the AP it self.

  This is from dmesg

  
  [52399.890664] ------------[ cut here ]------------
  [52399.890689] WARNING: CPU: 0 PID: 8834 at /build/buildd/linux-3.13.0/net/wireless/sme.c:797 cfg80211_roamed+0x89/0x90 [cfg80211]()
  [52399.890690] Modules linked in: wl(POF) snd_usb_audio hid_generic snd_usbmidi_lib ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ebtable_nat ebtables ip6table_filter ip6_tables iptable_filter ip_tables x_tables pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) bnep rfcomm btusb uvcvideo bluetooth videobuf2_vmalloc videobuf2_memops videobuf2_core videodev hp_wmi sparse_keymap intel_rapl x86_pkg_temp_thermal snd_hda_codec_realtek snd_hda_codec_hdmi intel_powerclamp snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc dm_multipath coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi scsi_dh snd_seq snd_seq_device kvm_intel kvm snd_timer joydev hp_accel snd soundcore lis3lv02d serio_raw input_polldev cfg80211 mei_me mei intel_smartconnect hp_wireless mac_hid lpc_ich parport_pc ppdev lp parport nls_iso8859_1 dm_crypt hid_logitech_dj usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul nouveau glue_helper ablk_helper cryptd i915 psmouse mxm_wmi ahci ttm libahci i2c_algo_bit drm_kms_helper r8169 drm mii video wmi [last unloaded: wl]
  [52399.890738] CPU: 0 PID: 8834 Comm: wl_event_handle Tainted: PF       W  O 3.13.0-32-generic #57-Ubuntu
  [52399.890739] Hardware name: Hewlett-Packard HP Pavilion 17 Notebook PC /2282, BIOS F.11 08/07/2014
  [52399.890741]  0000000000000009 ffff8801627dfdd0 ffffffff8171bcb4 0000000000000000
  [52399.890743]  ffff8801627dfe08 ffffffff810676cd ffff88006e692000 ffff880207c6e6c0
  [52399.890745]  000000000000009b ffff880207c6ed80 ffff8800360a79f8 ffff8801627dfe18
  [52399.890747] Call Trace:
  [52399.890754]  [<ffffffff8171bcb4>] dump_stack+0x45/0x56
  [52399.890757]  [<ffffffff810676cd>] warn_slowpath_common+0x7d/0xa0
  [52399.890759]  [<ffffffff810677aa>] warn_slowpath_null+0x1a/0x20
  [52399.890769]  [<ffffffffa03b2509>] cfg80211_roamed+0x89/0x90 [cfg80211]
  [52399.890797]  [<ffffffffa084af3b>] wl_notify_roaming_status+0xcb/0x150 [wl]
  [52399.890819]  [<ffffffffa0849b72>] wl_event_handler+0x62/0x220 [wl]
  [52399.890841]  [<ffffffffa0849b10>] ? wl_cfg80211_resume+0x440/0x440 [wl]
  [52399.890844]  [<ffffffff8108b3d2>] kthread+0xd2/0xf0
  [52399.890846]  [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
  [52399.890849]  [<ffffffff8172c5bc>] ret_from_fork+0x7c/0xb0
  [52399.890851]  [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
  [52399.890852] ---[ end trace c1a0d29f35c01220 ]---

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