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[Bug 1432659] Re: HP Pavilion 13-b208tu w/ Broadcom BCM43142 Wifi unstable, panics

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Stuart Bishop <1432659@xxxxxxxxxxxxxxxxxx>
Date: Mon, 23 Mar 2015 16:03:19 -0000
Reply-to: Bug 1432659 <1432659@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Router firmmware has been updated, although I don't think that can help
us diagnose the fault.

I wasn't able to reproduce today through normal use, but am able to
trigger a failure using suspend/resume. Is this the same bug, and maybe
a pointer to an ultimate fix?

Mar 23 22:55:48 aargh kernel: [ 3216.807039] PM: Syncing filesystems ... done.
Mar 23 22:55:48 aargh kernel: [ 3216.822610] PM: Preparing system for mem sleep
Mar 23 22:55:48 aargh kernel: [ 3216.822812] Freezing user space processes ... (elapsed 0.001 seconds) done.
Mar 23 22:55:48 aargh kernel: [ 3216.824475] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Mar 23 22:55:48 aargh kernel: [ 3216.825619] PM: Entering mem sleep
Mar 23 22:55:48 aargh kernel: [ 3216.825633] Suspending console(s) (use no_console_suspend to debug)
Mar 23 22:55:48 aargh kernel: [ 3216.826983] sd 0:0:0:0: [sda] Synchronizing SCSI cache
Mar 23 22:55:48 aargh kernel: [ 3216.828497] cfg80211: Calling CRDA to update world regulatory domain
Mar 23 22:55:48 aargh kernel: [ 3216.835195] sd 0:0:0:0: [sda] Stopping disk
Mar 23 22:55:48 aargh kernel: [ 3216.886782] i8042 aux 00:03: System wakeup disabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3216.886805] i8042 kbd 00:02: System wakeup enabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3217.893531] [drm:stop_ring [i915]] *ERROR* render ring : timed out trying to stop ring
Mar 23 22:55:48 aargh kernel: [ 3217.901564] PM: suspend of devices complete after 1074.780 msecs
Mar 23 22:55:48 aargh kernel: [ 3217.941598] PM: late suspend of devices complete after 39.977 msecs
Mar 23 22:55:48 aargh kernel: [ 3217.942146] r8169 0000:04:00.0: System wakeup enabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3217.942187] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3217.957869] PM: noirq suspend of devices complete after 16.253 msecs
Mar 23 22:55:48 aargh kernel: [ 3217.958141] ACPI: Preparing to enter system sleep state S3
Mar 23 22:55:48 aargh kernel: [ 3218.025580] PM: Saving platform NVS memory
Mar 23 22:55:48 aargh kernel: [ 3218.025586] Disabling non-boot CPUs ...
Mar 23 22:55:48 aargh kernel: [ 3218.025609] intel_pstate CPU 1 exiting
Mar 23 22:55:48 aargh kernel: [ 3218.025800] Broke affinity for irq 18
Mar 23 22:55:48 aargh kernel: [ 3218.026820] kvm: disabling virtualization on CPU1
Mar 23 22:55:48 aargh kernel: [ 3218.026825] smpboot: CPU 1 is now offline
Mar 23 22:55:48 aargh kernel: [ 3218.027186] intel_pstate CPU 2 exiting
Mar 23 22:55:48 aargh kernel: [ 3218.028368] kvm: disabling virtualization on CPU2
Mar 23 22:55:48 aargh kernel: [ 3218.028376] smpboot: CPU 2 is now offline
Mar 23 22:55:48 aargh kernel: [ 3218.028681] intel_pstate CPU 3 exiting
Mar 23 22:55:48 aargh kernel: [ 3218.028782] Broke affinity for irq 42
Mar 23 22:55:48 aargh kernel: [ 3218.029796] kvm: disabling virtualization on CPU3
Mar 23 22:55:48 aargh kernel: [ 3218.029808] smpboot: CPU 3 is now offline
Mar 23 22:55:48 aargh kernel: [ 3218.032593] ACPI: Low-level resume complete
Mar 23 22:55:48 aargh kernel: [ 3218.032659] PM: Restoring platform NVS memory
Mar 23 22:55:48 aargh kernel: [ 3218.033062] Enabling non-boot CPUs ...
Mar 23 22:55:48 aargh kernel: [ 3218.033105] x86: Booting SMP configuration:
Mar 23 22:55:48 aargh kernel: [ 3218.033106] smpboot: Booting Node 0 Processor 1 APIC 0x2
Mar 23 22:55:48 aargh kernel: [ 3218.045557] kvm: enabling virtualization on CPU1
Mar 23 22:55:48 aargh kernel: [ 3218.047928] CPU1 is up
Mar 23 22:55:48 aargh kernel: [ 3218.047959] smpboot: Booting Node 0 Processor 2 APIC 0x1
Mar 23 22:55:48 aargh kernel: [ 3218.060017] kvm: enabling virtualization on CPU2
Mar 23 22:55:48 aargh kernel: [ 3218.062313] CPU2 is up
Mar 23 22:55:48 aargh kernel: [ 3218.062330] smpboot: Booting Node 0 Processor 3 APIC 0x3
Mar 23 22:55:48 aargh kernel: [ 3218.074403] kvm: enabling virtualization on CPU3
Mar 23 22:55:48 aargh kernel: [ 3218.076717] CPU3 is up
Mar 23 22:55:48 aargh kernel: [ 3218.080064] ACPI: Waking up from system sleep state S3
Mar 23 22:55:48 aargh kernel: [ 3218.228368] xhci_hcd 0000:00:14.0: System wakeup disabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3218.244618] PM: noirq resume of devices complete after 16.316 msecs
Mar 23 22:55:48 aargh kernel: [ 3218.268492] PM: early resume of devices complete after 23.814 msecs
Mar 23 22:55:48 aargh kernel: [ 3218.268835] r8169 0000:04:00.0: System wakeup disabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3218.270010] sd 0:0:0:0: [sda] Starting disk
Mar 23 22:55:48 aargh kernel: [ 3218.313734] rtc_cmos 00:01: System wakeup disabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3218.313750] i8042 kbd 00:02: System wakeup disabled by ACPI
Mar 23 22:55:48 aargh kernel: [ 3218.385532] r8169 0000:04:00.0 eth0: link down
Mar 23 22:55:48 aargh kernel: [ 3218.588669] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Mar 23 22:55:48 aargh kernel: [ 3218.588857] usb 1-3: reset high-speed USB device number 3 using xhci_hcd
Mar 23 22:55:48 aargh kernel: [ 3218.590697] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1
Mar 23 22:55:48 aargh kernel: [ 3218.591072] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1
Mar 23 22:55:48 aargh kernel: [ 3218.591108] ata1.00: configured for UDMA/133
Mar 23 22:55:48 aargh kernel: [ 3218.821505] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88024fcf1780
Mar 23 22:55:48 aargh kernel: [ 3218.941264] usb 1-7: reset full-speed USB device number 4 using xhci_hcd
Mar 23 22:55:48 aargh kernel: [ 3219.069961] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802506f2100
Mar 23 22:55:48 aargh kernel: [ 3219.069962] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802506f2190
Mar 23 22:55:48 aargh kernel: [ 3219.069963] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802506f2148
Mar 23 22:55:48 aargh kernel: [ 3219.069964] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88008a9ee888
Mar 23 22:55:48 aargh kernel: [ 3219.069965] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88008a9ee840
Mar 23 22:55:48 aargh kernel: [ 3219.069966] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88008aad8888
Mar 23 22:55:48 aargh kernel: [ 3219.069966] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88008aad8840
Mar 23 22:55:48 aargh kernel: [ 3219.071020] PM: resume of devices complete after 801.763 msecs
Mar 23 22:55:48 aargh kernel: [ 3219.071235] ------------[ cut here ]------------
Mar 23 22:55:48 aargh kernel: [ 3219.071240] WARNING: CPU: 1 PID: 482 at /build/buildd/linux-3.19.0/drivers/base/firmware_class.c:1126 _request_firmware+0x72e/0xbd0()
Mar 23 22:55:48 aargh kernel: [ 3219.071265] Modules linked in: rfcomm bnep xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables binfmt_misc nls_iso8859_1 hp_wmi sparse_keymap intel_rapl iosf_mbi wl(POE) x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm joydev btusb uvcvideo snd_hda_codec_realtek videobuf2_vmalloc snd_hda_codec_generic videobuf2_memops snd_hda_codec_hdmi videobuf2_core bluetooth serio_raw v4l2_common cfg80211 videodev rtsx_pci_ms snd_seq_midi snd_hda_intel snd_seq_midi_event memstick snd_hda_controller snd_hda_codec media snd_hwdep snd_rawmidi lpc_ich snd_pcm shpchp snd_seq mei_me snd_seq_device snd_timer mei snd 8250_fintek hp_accel lis3lv02d soundcore input_polldev hp_wireless acpi_pad mac_hid parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq dm_crypt uas usb_storage crct10dif_pclmul crc32_pclmul ghash_clmulni_intel rtsx_pci_sdmmc aesni_intel i915 aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper psmouse drm r8169 ahci libahci rtsx_pci mii wmi video
Mar 23 22:55:48 aargh kernel: [ 3219.071280] CPU: 1 PID: 482 Comm: kworker/u17:2 Tainted: P           OE  3.19.0-9-generic #9-Ubuntu
Mar 23 22:55:48 aargh kernel: [ 3219.071281] Hardware name: Hewlett-Packard HP Pavilion 13 Notebook PC /2340, BIOS F.24 11/28/2014
Mar 23 22:55:48 aargh kernel: [ 3219.071291] Workqueue: hci0 hci_power_on [bluetooth]
Mar 23 22:55:48 aargh kernel: [ 3219.071293]  ffffffff81b0fa68 ffff880253e3bb78 ffffffff817c09b5 ffffffff81c54d78
Mar 23 22:55:48 aargh kernel: [ 3219.071294]  0000000000000000 ffff880253e3bbb8 ffffffff8107595a ffffffff81517f6a
Mar 23 22:55:48 aargh kernel: [ 3219.071296]  ffff880253e3bcd0 ffff880251cf9cc0 ffff88008d845c00 00000000fffffff5
Mar 23 22:55:48 aargh kernel: [ 3219.071296] Call Trace:
Mar 23 22:55:48 aargh kernel: [ 3219.071299]  [<ffffffff817c09b5>] dump_stack+0x45/0x57
Mar 23 22:55:48 aargh kernel: [ 3219.071302]  [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
Mar 23 22:55:48 aargh kernel: [ 3219.071304]  [<ffffffff81517f6a>] ? _request_firmware+0x5a/0xbd0
Mar 23 22:55:48 aargh kernel: [ 3219.071305]  [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20
Mar 23 22:55:48 aargh kernel: [ 3219.071307]  [<ffffffff8151863e>] _request_firmware+0x72e/0xbd0
Mar 23 22:55:48 aargh kernel: [ 3219.071309]  [<ffffffff81518b15>] request_firmware+0x35/0x50
Mar 23 22:55:48 aargh kernel: [ 3219.071311]  [<ffffffffc0562869>] btusb_setup_bcm_patchram+0x89/0x570 [btusb]
Mar 23 22:55:48 aargh kernel: [ 3219.071313]  [<ffffffff8150f7e6>] ? rpm_idle+0xd6/0x230
Mar 23 22:55:48 aargh kernel: [ 3219.071320]  [<ffffffffc0688561>] hci_dev_do_open+0xe1/0xa90 [bluetooth]
Mar 23 22:55:48 aargh kernel: [ 3219.071322]  [<ffffffff810135e0>] ? __switch_to+0x150/0x5f0
Mar 23 22:55:48 aargh kernel: [ 3219.071328]  [<ffffffffc06896f0>] hci_power_on+0x40/0x200 [bluetooth]
Mar 23 22:55:48 aargh kernel: [ 3219.071330]  [<ffffffff8108eb48>] process_one_work+0x158/0x430
Mar 23 22:55:48 aargh kernel: [ 3219.071331]  [<ffffffff8108f5db>] worker_thread+0x5b/0x530
Mar 23 22:55:48 aargh kernel: [ 3219.071333]  [<ffffffff8108f580>] ? rescuer_thread+0x3a0/0x3a0
Mar 23 22:55:48 aargh kernel: [ 3219.071334]  [<ffffffff81094679>] kthread+0xc9/0xe0
Mar 23 22:55:48 aargh kernel: [ 3219.071336]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
Mar 23 22:55:48 aargh kernel: [ 3219.071338]  [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0
Mar 23 22:55:48 aargh kernel: [ 3219.071340]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
Mar 23 22:55:48 aargh kernel: [ 3219.071341] ---[ end trace 858c5d6c8c8995c1 ]---
Mar 23 22:55:48 aargh kernel: [ 3219.071343] bluetooth hci0: firmware: brcm/BCM43142A0-0a5c-216c.hcd will not be loaded
Mar 23 22:55:48 aargh kernel: [ 3219.071344] Bluetooth: hci0: BCM: patch brcm/BCM43142A0-0a5c-216c.hcd not found
Mar 23 22:55:48 aargh kernel: [ 3219.071435] PM: Finishing wakeup.
Mar 23 22:55:48 aargh kernel: [ 3219.071436] Restarting tasks ... 
Mar 23 22:55:48 aargh kernel: [ 3219.078654] cfg80211: World regulatory domain updated:
Mar 23 22:55:48 aargh kernel: [ 3219.078659] cfg80211:  DFS Master region: unset
Mar 23 22:55:48 aargh kernel: [ 3219.078660] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
Mar 23 22:55:48 aargh kernel: [ 3219.078664] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
Mar 23 22:55:48 aargh kernel: [ 3219.078667] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
Mar 23 22:55:48 aargh kernel: [ 3219.078669] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
Mar 23 22:55:48 aargh kernel: [ 3219.078671] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
Mar 23 22:55:48 aargh kernel: [ 3219.078673] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
Mar 23 22:55:48 aargh kernel: [ 3219.085467] done.
Mar 23 22:55:48 aargh kernel: [ 3219.224190] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Mar 23 22:55:48 aargh kernel: [ 3219.336043] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Mar 23 22:55:48 aargh kernel: [ 3219.659697] r8169 0000:04:00.0 eth0: link down
Mar 23 22:55:50 aargh kernel: [ 3221.078966] Bluetooth: hci0 command 0x1003 tx timeout


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

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https://bugs.launchpad.net/bugs/1432659

Title:
  HP Pavilion 13-b208tu w/ Broadcom BCM43142 Wifi unstable, panics

Status in bcmwl package in Ubuntu:
  Confirmed

Bug description:
  This new laptop's wireless connection (HP Pavilion 13-b208tu, Broadcom
  BCM43142) is disconnecting every few minutes. This corresponds to
  panics and tracebacks in the kernel log.

  The laptop was freshly installed with Ubuntu 14.10 (Utopic), and
  disconnections were seen. I then upgraded it to Ubuntu 15.04 (Vivid
  developement release), and am still experiencing the problem. The
  Broadcom proprietary driver is being used, and seems to be the only
  one available for this device.

  Mar 16 20:38:38 aargh kernel: [  557.285585] ------------[ cut here ]------------
  Mar 16 20:38:38 aargh kernel: [  557.285646] WARNING: CPU: 0 PID: 523 at /build/buildd/linux-3.19.0/net/wireless/sme.c:800 cfg80211_roamed+0x91/0xa0 [cfg80211]()
  Mar 16 20:38:38 aargh kernel: [  557.285652] Modules linked in: rfcomm bnep xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables nls_iso8859_1 hp_wmi sparse_keymap snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi wl(POE) snd_hda_intel intel_rapl iosf_mbi x86_pkg_temp_thermal snd_hda_controller intel_powerclamp coretemp snd_hda_codec kvm_intel snd_hwdep snd_pcm kvm snd_seq_midi snd_seq_midi_event joydev snd_rawmidi rtsx_pci_ms serio_raw snd_seq cfg80211 uvcvideo lpc_ich snd_seq_device videobuf2_vmalloc snd_timer videobuf2_memops videobuf2_core btusb v4l2_common bluetooth videodev media memstick mei_me mei shpchp snd soundcore 8250_fintek hp_accel hp_wireless lis3lv02d input_polldev acpi_pad mac_hid parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq dm_crypt rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i915 psmouse ahci libahci r8169 i2c_algo_bit mii rtsx_pci drm_kms_helper drm wmi video
  Mar 16 20:38:38 aargh kernel: [  557.285789] CPU: 0 PID: 523 Comm: wl_event_handle Tainted: P        W  OE  3.19.0-9-generic #9-Ubuntu
  Mar 16 20:38:38 aargh kernel: [  557.285793] Hardware name: Hewlett-Packard HP Pavilion 13 Notebook PC /2340, BIOS F.23 11/13/2014
  Mar 16 20:38:38 aargh kernel: [  557.285798]  ffffffffc0709a78 ffff880250fe3da8 ffffffff817c09b5 0000000000000007
  Mar 16 20:38:38 aargh kernel: [  557.285804]  0000000000000000 ffff880250fe3de8 ffffffff8107595a ffff88008ee99478
  Mar 16 20:38:38 aargh kernel: [  557.285809]  ffff880250909000 ffff88023bfc6a80 0000000000000099 ffff88023bfc6900
  Mar 16 20:38:38 aargh kernel: [  557.285816] Call Trace:
  Mar 16 20:38:38 aargh kernel: [  557.285831]  [<ffffffff817c09b5>] dump_stack+0x45/0x57
  Mar 16 20:38:38 aargh kernel: [  557.285841]  [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
  Mar 16 20:38:38 aargh kernel: [  557.285846]  [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20
  Mar 16 20:38:38 aargh kernel: [  557.285873]  [<ffffffffc06e5a81>] cfg80211_roamed+0x91/0xa0 [cfg80211]
  Mar 16 20:38:38 aargh kernel: [  557.285969]  [<ffffffffc0ad59fb>] wl_notify_roaming_status+0xcb/0x150 [wl]
  Mar 16 20:38:38 aargh kernel: [  557.286044]  [<ffffffffc0ad275a>] wl_event_handler+0x6a/0x230 [wl]
  Mar 16 20:38:38 aargh kernel: [  557.286122]  [<ffffffffc0ad26f0>] ? wl_free_wdev.isra.23+0x80/0x80 [wl]
  Mar 16 20:38:38 aargh kernel: [  557.286144]  [<ffffffff81094679>] kthread+0xc9/0xe0
  Mar 16 20:38:38 aargh kernel: [  557.286153]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
  Mar 16 20:38:38 aargh kernel: [  557.286161]  [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0
  Mar 16 20:38:38 aargh kernel: [  557.286169]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
  Mar 16 20:38:38 aargh kernel: [  557.286173] ---[ end trace 3fbf2d3851265ca6 ]---
  Mar 16 20:38:44 aargh kernel: [  563.512221] cfg80211: Calling CRDA to update world regulatory domain
  Mar 16 20:38:44 aargh kernel: [  563.514217] cfg80211: World regulatory domain updated:
  Mar 16 20:38:44 aargh kernel: [  563.514220] cfg80211:  DFS Master region: unset
  Mar 16 20:38:44 aargh kernel: [  563.514221] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
  Mar 16 20:38:44 aargh kernel: [  563.514224] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:44 aargh kernel: [  563.514225] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:44 aargh kernel: [  563.514226] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:44 aargh kernel: [  563.514227] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:44 aargh kernel: [  563.514229] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:44 aargh kernel: [  564.255711] ------------[ cut here ]------------
  Mar 16 20:38:44 aargh kernel: [  564.255746] WARNING: CPU: 0 PID: 523 at /build/buildd/linux-3.19.0/net/wireless/sme.c:800 cfg80211_roamed+0x91/0xa0 [cfg80211]()
  Mar 16 20:38:44 aargh kernel: [  564.255747] Modules linked in: rfcomm bnep xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables nls_iso8859_1 hp_wmi sparse_keymap snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi wl(POE) snd_hda_intel intel_rapl iosf_mbi x86_pkg_temp_thermal snd_hda_controller intel_powerclamp coretemp snd_hda_codec kvm_intel snd_hwdep snd_pcm kvm snd_seq_midi snd_seq_midi_event joydev snd_rawmidi rtsx_pci_ms serio_raw snd_seq cfg80211 uvcvideo lpc_ich snd_seq_device videobuf2_vmalloc snd_timer videobuf2_memops videobuf2_core btusb v4l2_common bluetooth videodev media memstick mei_me mei shpchp snd soundcore 8250_fintek hp_accel hp_wireless lis3lv02d input_polldev acpi_pad mac_hid parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq dm_crypt rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i915 psmouse ahci libahci r8169 i2c_algo_bit mii rtsx_pci drm_kms_helper drm wmi video
  Mar 16 20:38:44 aargh kernel: [  564.255799] CPU: 0 PID: 523 Comm: wl_event_handle Tainted: P        W  OE  3.19.0-9-generic #9-Ubuntu
  Mar 16 20:38:44 aargh kernel: [  564.255801] Hardware name: Hewlett-Packard HP Pavilion 13 Notebook PC /2340, BIOS F.23 11/13/2014
  Mar 16 20:38:44 aargh kernel: [  564.255802]  ffffffffc0709a78 ffff880250fe3da8 ffffffff817c09b5 0000000000000007
  Mar 16 20:38:44 aargh kernel: [  564.255804]  0000000000000000 ffff880250fe3de8 ffffffff8107595a ffff88008ee99478
  Mar 16 20:38:44 aargh kernel: [  564.255805]  ffff880250909000 ffff8802510f6a80 0000000000000099 ffff8802510f6f00
  Mar 16 20:38:44 aargh kernel: [  564.255807] Call Trace:
  Mar 16 20:38:44 aargh kernel: [  564.255812]  [<ffffffff817c09b5>] dump_stack+0x45/0x57
  Mar 16 20:38:44 aargh kernel: [  564.255815]  [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
  Mar 16 20:38:44 aargh kernel: [  564.255817]  [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20
  Mar 16 20:38:44 aargh kernel: [  564.255824]  [<ffffffffc06e5a81>] cfg80211_roamed+0x91/0xa0 [cfg80211]
  Mar 16 20:38:44 aargh kernel: [  564.255851]  [<ffffffffc0ad59fb>] wl_notify_roaming_status+0xcb/0x150 [wl]
  Mar 16 20:38:44 aargh kernel: [  564.255873]  [<ffffffffc0ad275a>] wl_event_handler+0x6a/0x230 [wl]
  Mar 16 20:38:44 aargh kernel: [  564.255893]  [<ffffffffc0ad26f0>] ? wl_free_wdev.isra.23+0x80/0x80 [wl]
  Mar 16 20:38:44 aargh kernel: [  564.255896]  [<ffffffff81094679>] kthread+0xc9/0xe0
  Mar 16 20:38:44 aargh kernel: [  564.255898]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
  Mar 16 20:38:44 aargh kernel: [  564.255901]  [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0
  Mar 16 20:38:44 aargh kernel: [  564.255903]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
  Mar 16 20:38:44 aargh kernel: [  564.255904] ---[ end trace 3fbf2d3851265ca7 ]---
  Mar 16 20:38:51 aargh kernel: [  570.533932] cfg80211: Calling CRDA to update world regulatory domain
  Mar 16 20:38:51 aargh kernel: [  570.536708] cfg80211: World regulatory domain updated:
  Mar 16 20:38:51 aargh kernel: [  570.536715] cfg80211:  DFS Master region: unset
  Mar 16 20:38:51 aargh kernel: [  570.536718] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
  Mar 16 20:38:51 aargh kernel: [  570.536724] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:51 aargh kernel: [  570.536728] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:51 aargh kernel: [  570.536731] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:51 aargh kernel: [  570.536735] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:51 aargh kernel: [  570.536738] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  Mar 16 20:38:52 aargh kernel: [  571.328091] ------------[ cut here ]------------
  Mar 16 20:38:52 aargh kernel: [  571.328188] WARNING: CPU: 1 PID: 523 at /build/buildd/linux-3.19.0/net/wireless/sme.c:800 cfg80211_roamed+0x91/0xa0 [cfg80211]()
  Mar 16 20:38:52 aargh kernel: [  571.328190] Modules linked in: rfcomm bnep xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables nls_iso8859_1 hp_wmi sparse_keymap snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi wl(POE) snd_hda_intel intel_rapl iosf_mbi x86_pkg_temp_thermal snd_hda_controller intel_powerclamp coretemp snd_hda_codec kvm_intel snd_hwdep snd_pcm kvm snd_seq_midi snd_seq_midi_event joydev snd_rawmidi rtsx_pci_ms serio_raw snd_seq cfg80211 uvcvideo lpc_ich snd_seq_device videobuf2_vmalloc snd_timer videobuf2_memops videobuf2_core btusb v4l2_common bluetooth videodev media memstick mei_me mei shpchp snd soundcore 8250_fintek hp_accel hp_wireless lis3lv02d input_polldev acpi_pad mac_hid parport_pc ppdev lp parport autofs4 btrfs xor raid6_pq dm_crypt rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i915 psmouse ahci libahci r8169 i2c_algo_bit mii rtsx_pci drm_kms_helper drm wmi video
  Mar 16 20:38:52 aargh kernel: [  571.328252] CPU: 1 PID: 523 Comm: wl_event_handle Tainted: P        W  OE  3.19.0-9-generic #9-Ubuntu
  Mar 16 20:38:52 aargh kernel: [  571.328254] Hardware name: Hewlett-Packard HP Pavilion 13 Notebook PC /2340, BIOS F.23 11/13/2014
  Mar 16 20:38:52 aargh kernel: [  571.328256]  ffffffffc0709a78 ffff880250fe3da8 ffffffff817c09b5 0000000000000007
  Mar 16 20:38:52 aargh kernel: [  571.328259]  0000000000000000 ffff880250fe3de8 ffffffff8107595a ffff88008ee99478
  Mar 16 20:38:52 aargh kernel: [  571.328261]  ffff880250909000 ffff88022121bd80 0000000000000099 ffff88022121b780
  Mar 16 20:38:52 aargh kernel: [  571.328264] Call Trace:
  Mar 16 20:38:52 aargh kernel: [  571.328279]  [<ffffffff817c09b5>] dump_stack+0x45/0x57
  Mar 16 20:38:52 aargh kernel: [  571.328283]  [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
  Mar 16 20:38:52 aargh kernel: [  571.328286]  [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20
  Mar 16 20:38:52 aargh kernel: [  571.328316]  [<ffffffffc06e5a81>] cfg80211_roamed+0x91/0xa0 [cfg80211]
  Mar 16 20:38:52 aargh kernel: [  571.328398]  [<ffffffffc0ad59fb>] wl_notify_roaming_status+0xcb/0x150 [wl]
  Mar 16 20:38:52 aargh kernel: [  571.328436]  [<ffffffffc0ad275a>] wl_event_handler+0x6a/0x230 [wl]
  Mar 16 20:38:52 aargh kernel: [  571.328481]  [<ffffffffc0ad26f0>] ? wl_free_wdev.isra.23+0x80/0x80 [wl]
  Mar 16 20:38:52 aargh kernel: [  571.328490]  [<ffffffff81094679>] kthread+0xc9/0xe0
  Mar 16 20:38:52 aargh kernel: [  571.328493]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
  Mar 16 20:38:52 aargh kernel: [  571.328502]  [<ffffffff817c7a3c>] ret_from_fork+0x7c/0xb0
  Mar 16 20:38:52 aargh kernel: [  571.328504]  [<ffffffff810945b0>] ? kthread_create_on_node+0x1c0/0x1c0
  Mar 16 20:38:52 aargh kernel: [  571.328507] ---[ end trace 3fbf2d3851265ca8 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-image-3.19.0-9-generic 3.19.0-9.9
  ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1
  Uname: Linux 3.19.0-9-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.16.2-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  stub       1844 F.... pulseaudio
   /dev/snd/controlC0:  stub       1844 F.... pulseaudio
  CRDA:
   country SG: DFS-UNSET
    (2402 - 2482 @ 40), (N/A, 20), (N/A)
    (5170 - 5250 @ 40), (N/A, 20), (N/A)
    (5250 - 5330 @ 40), (N/A, 20), (0 ms), DFS
    (5735 - 5835 @ 40), (N/A, 20), (N/A)
  Date: Mon Mar 16 20:52:03 2015
  HibernationDevice: RESUME=UUID=85d38fc2-ada5-4f5e-83ec-ca176c194dab
  InstallationDate: Installed on 2015-03-13 (2 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0a5c:216c Broadcom Corp.
   Bus 001 Device 002: ID 064e:c33c Suyin Corp.
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Hewlett-Packard HP Pavilion 13 Notebook PC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-9-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-9-generic N/A
   linux-backports-modules-3.19.0-9-generic  N/A
   linux-firmware                            1.143
  SourcePackage: linux
  UpgradeStatus: Upgraded to vivid on 2015-03-16 (0 days ago)
  dmi.bios.date: 11/13/2014
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.23
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 2340
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 07.08
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.23:bd11/13/2014:svnHewlett-Packard:pnHPPavilion13NotebookPC:pvr097D120000005F00000400080:rvnHewlett-Packard:rn2340:rvr07.08:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion 13 Notebook PC
  dmi.product.version: 097D120000005F00000400080
  dmi.sys.vendor: Hewlett-Packard

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References

[Bug 1432659] [NEW] Broadcom BCM43142 Wifi unstable, panics
From: Stuart Bishop, 2015-03-16