Public bug reported:
As far as I can go in the log ie. 201504 when I installed vivid, I can
find traces of kernel oops regarding wl driver.
I never noticed it. Until recently when I got freeze, kernel panic (caps
lock led blinking), when deactivating the BCM43142 wifi card in nm
applet. Or that card failing to asociate to an AP.
Or even no network traffic even though I am connected to the AP.
So I began to believe of an hardware problem with the card until I found
all these kernel oops. There are more frequent recently.
20150711 14:46:57 callisto kernel: ------------[ cut here ]------------
20150711 14:46:57 callisto kernel: WARNING: CPU: 2 PID: 561 at
/build/buildd/linux-3.19.0/net/wireless/sme.c:800 cfg80211_roamed+0x91/0xa0
[cfg80211]()
20150711 14:46:57 callisto kernel: Modules linked in: uas usb_storage
r8188eu(C) nls_iso8859_1 pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE)
vboxdrv(OE) binfmt_misc rfcomm bnep xts gf128mul dm_crypt dell_wmi
sparse_keymap dell_laptop dcdbas i8k snd_hda_codec_hdmi snd_hda_codec_realtek
btusb snd_hda_codec_generic bluetooth snd_hda_intel intel_rapl
snd_hda_controller uvcvideo snd_hda_codec snd_hwdep videobuf2_vmalloc
videobuf2_memops videobuf2_core iosf_mbi v4l2_common videodev
x86_pkg_temp_thermal media snd_pcm intel_powerclamp coretemp kvm_intel
dm_multipath kvm scsi_dh snd_seq_midi crct10dif_pclmul snd_seq_midi_event
snd_rawmidi wl(POE) crc32_pclmul snd_seq snd_seq_device ghash_clmulni_intel
snd_timer cryptd joydev ip6t_REJECT serio_raw nf_reject_ipv6 snd nf_log_ipv6
cfg80211 mei_me mei xt_hl lpc_ich soundcore ip6t_rt
20150711 14:46:57 callisto kernel: shpchp nf_conntrack_ipv6 nf_defrag_ipv6
mac_hid ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_multiport
xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack
ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast
nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter parport_pc ppdev
ip_tables x_tables lp parport autofs4 btrfs xor raid6_pq mmc_block rtsx_usb_ms
rtsx_usb_sdmmc memstick rtsx_usb bcache hid_generic usbhid hid i915
i2c_algo_bit drm_kms_helper psmouse r8169 drm ahci libahci mii wmi video
20150711 14:46:57 callisto kernel: CPU: 2 PID: 561 Comm: wl_event_handle
Tainted: P WC OE 3.19.0-22-generic #22-Ubuntu
20150711 14:46:57 callisto kernel: Hardware name: Dell Inc. Inspiron
3521/06RYX8, BIOS A12 10/25/2013
20150711 14:46:57 callisto kernel: ffffffffc0793a78 ffff8802419a7da8
ffffffff817c4188 0000000000000007
20150711 14:46:57 callisto kernel: 0000000000000000 ffff8802419a7de8
ffffffff810769aa ffff8800a7fc4878
20150711 14:46:57 callisto kernel: ffff88023f9fc000 ffff8801dec05300
0000000000000055 ffff880227abaa60
20150711 14:46:57 callisto kernel: Call Trace:
20150711 14:46:57 callisto kernel: [<ffffffff817c4188>] dump_stack+0x45/0x57
20150711 14:46:57 callisto kernel: [<ffffffff810769aa>]
warn_slowpath_common+0x8a/0xc0
20150711 14:46:57 callisto kernel: [<ffffffff81076a9a>]
warn_slowpath_null+0x1a/0x20
20150711 14:46:57 callisto kernel: [<ffffffffc076faa1>]
cfg80211_roamed+0x91/0xa0 [cfg80211]
20150711 14:46:57 callisto kernel: [<ffffffffc09d29fb>]
wl_notify_roaming_status+0xcb/0x150 [wl]
20150711 14:46:57 callisto kernel: [<ffffffffc09cf75a>]
wl_event_handler+0x6a/0x230 [wl]
20150711 14:46:57 callisto kernel: [<ffffffffc09cf6f0>] ?
wl_free_wdev.isra.23+0x80/0x80 [wl]
20150711 14:46:57 callisto kernel: [<ffffffff81095879>] kthread+0xc9/0xe0
20150711 14:46:57 callisto kernel: [<ffffffff810957b0>] ?
kthread_create_on_node+0x1c0/0x1c0
20150711 14:46:57 callisto kernel: [<ffffffff817cb198>] ret_from_fork+0x58/0x90
20150711 14:46:57 callisto kernel: [<ffffffff810957b0>] ?
kthread_create_on_node+0x1c0/0x1c0
20150711 14:46:57 callisto kernel: ---[ end trace eb7851df8a44192c ]---
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-22.22-generic 3.19.8-ckt1
Uname: Linux 3.19.0-22-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Jul 11 16:39:09 2015
InstallationDate: Installed on 2015-04-01 (100 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: bcmwl (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug vivid
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https://bugs.launchpad.net/bugs/1473655
Title:
wl driver cause kernel oops
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