kernel-packages team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Did this issue start happening after an update/upgrade?  Was there a
prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.6 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc4-wily/

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

-- 
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https://bugs.launchpad.net/bugs/1571115

Title:
  wifi dropped and failed to connect

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Running 14.04.4 LTS (Linux nomad 3.13.0-32-generic #57-Ubuntu SMP Tue
  Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux). Experienced
  an issue where the integrated wifi on a Dell Latitude E6400 dropped
  and failed to reconnect.  Wifi chipset is BCM43228. Current version of
  bcmwl-kernel-source is 6.30.223.248+bdcom-0ubuntu0.2 on amd64.

             *-network
                  description: Wireless interface
                  product: BCM43228 802.11a/b/g/n
                  vendor: Broadcom Corporation
                  physical id: 0
                  bus info: pci@0000:0c:00.0
                  logical name: wlan0
                  version: 00
                  serial: ec:55:f9:28:c4:97
                  width: 64 bits
                  clock: 33MHz
                  capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
                  configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) ip=192.168.1.232 latency=0 multicast=yes wireless=IEEE 802.11abg
                  resources: irq:17 memory:f1ffc000-f1ffffff


  
  Kernel trace:

  Apr 15 19:58:01 nomad kernel: [  164.284258] ------------[ cut here ]------------
  Apr 15 19:58:01 nomad kernel: [  164.284299] WARNING: CPU: 0 PID: 685 at /build/buildd/linux-3.13.0/net/wireless/sme.c:797 cfg80211_roamed+0x89/0x90 [cfg80211]()
  Apr 15 19:58:01 nomad kernel: [  164.284302] Modules linked in: dm_crypt deflate ctr twofish_generic twofish_x86_64_3way twofish_x86_64 twofish_common camellia_generic camellia_x86_64 serpent_sse2_x86_64 xts serpent_generic lrw gf128mul glue_helper blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common ablk_helper cryptd des_generic cmac xcbc rmd160 crypto_null af_key nvidia(POF) xfrm_algo wl(POF) btusb uvcvideo videobuf2_vmalloc videobuf2_memops dell_wmi videobuf2_core gpio_ich videodev sparse_keymap coretemp kvm_intel dell_laptop kvm dcdbas snd_hda_codec_idt snd_hda_intel snd_hda_codec bnep joydev rfcomm pcmcia snd_hwdep cfg80211 snd_pcm serio_raw bluetooth yenta_socket snd_page_alloc drm snd_seq_midi pcmcia_rsrc snd_seq_midi_event pcmcia_core snd_rawmidi snd_seq lpc_ich snd_seq_device snd_timer wmi snd mei_me shpchp soundcore mei mac_hid parport_pc ppdev lp parport binfmt_misc hid_generic hid_logitech_dj usbhid hid psmouse sdhci_pci sdhci firewire_ohci firewire_core crc_itu_t video e1000e ptp pps_core pata_acpi
  Apr 15 19:58:01 nomad kernel: [  164.284384] CPU: 0 PID: 685 Comm: wl_event_handle Tainted: PF       W  O 3.13.0-32-generic #57-Ubuntu
  Apr 15 19:58:01 nomad kernel: [  164.284386] Hardware name: Dell Inc. Latitude E6400                  /0K672N, BIOS A28 02/16/2011
  Apr 15 19:58:01 nomad kernel: [  164.284389]  0000000000000009 ffff8800d5a0bdd0 ffffffff8171bcb4 0000000000000000
  Apr 15 19:58:01 nomad kernel: [  164.284393]  ffff8800d5a0be08 ffffffff810676cd ffff8800d5323000 ffff8800da079780
  Apr 15 19:58:01 nomad kernel: [  164.284397]  000000000000009a ffff880114f15580 ffff880114c1a9f8 ffff8800d5a0be18
  Apr 15 19:58:01 nomad kernel: [  164.284402] Call Trace:
  Apr 15 19:58:01 nomad kernel: [  164.284410]  [<ffffffff8171bcb4>] dump_stack+0x45/0x56
  Apr 15 19:58:01 nomad kernel: [  164.284416]  [<ffffffff810676cd>] warn_slowpath_common+0x7d/0xa0
  Apr 15 19:58:01 nomad kernel: [  164.284419]  [<ffffffff810677aa>] warn_slowpath_null+0x1a/0x20
  Apr 15 19:58:01 nomad kernel: [  164.284437]  [<ffffffffa02bd509>] cfg80211_roamed+0x89/0x90 [cfg80211]
  Apr 15 19:58:01 nomad kernel: [  164.284485]  [<ffffffffa065f78b>] wl_notify_roaming_status+0xcb/0x150 [wl]
  Apr 15 19:58:01 nomad kernel: [  164.284526]  [<ffffffffa065e3c2>] wl_event_handler+0x62/0x220 [wl]
  Apr 15 19:58:01 nomad kernel: [  164.284568]  [<ffffffffa065e360>] ? wl_cfg80211_resume+0x440/0x440 [wl]
  Apr 15 19:58:01 nomad kernel: [  164.284572]  [<ffffffff8108b3d2>] kthread+0xd2/0xf0
  Apr 15 19:58:01 nomad kernel: [  164.284576]  [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
  Apr 15 19:58:01 nomad kernel: [  164.284581]  [<ffffffff8172c5bc>] ret_from_fork+0x7c/0xb0
  Apr 15 19:58:01 nomad kernel: [  164.284585]  [<ffffffff8108b300>] ? kthread_create_on_node+0x1d0/0x1d0
  Apr 15 19:58:01 nomad kernel: [  164.284588] ---[ end trace 2425210e2f98be7e ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57 [modified: boot/vmlinuz-3.13.0-32-generic]
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  rkidder    2360 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Fri Apr 15 20:04:11 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-03-01 (411 days ago)
  InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140723)
  MachineType: Dell Inc. Latitude E6400
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=UUID=bd790d28-24d6-4e26-b6f6-08403734e086 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.20
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/16/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A28
  dmi.board.name: 0K672N
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA28:bd02/16/2011:svnDellInc.:pnLatitudeE6400:pvr:rvnDellInc.:rn0K672N:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude E6400
  dmi.sys.vendor: Dell Inc.

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