Short answer: Because it is a brand-spanking-new unsupported hybrid bcm43142 card Long answer: >From the post I linked: > My newish Dell Inspiron 15R 5520 shipped with ubuntu installed, and > had this (apparently unreleased?) version of broadcom-sta-dkms, for > the bcm43142 (Dell hybrid wifi/bluetooth adapter / 14e4:4365) > > # lspci -nn | tail -1 > 08:00.0 Network controller [0280]: Broadcom Corporation Device > [14e4:4365] (rev 01) > > # dmesg | grep BCM > eth0: Broadcom BCM4365 802.11 Hybrid Wireless Controller 6.20.55.19 (r300276) And, Rafał Miłecki (zajec5) wrote on 2012-07-30: > In case of 14e4:4365 BCM43142: > * PHY is LCN40 (revision 3) > * RADIO is 0xA065 (revision 0) > > Unfortunately there are not specs for LCN40 available, b43 doesn't support > (just like brcmsmac). > > I'm not sure if we can have hopes in Broadcom (brcmsmac driver [0]). They are > planning to add more N-PHY support for almost two years and they still didn't > release (planned) HT-PHY support. Not sure if LCN40 is on their internal TODO > at all. > > I also don't think anyone is working on specs [1] right now and I won't be able to > add support for LCN40 without them. > > [0] http://wireless.kernel.org/en/users/Drivers/brcm80211 > [1] http://bcm-v4.sipsolutions.net/ Source: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/863051/comments/80 I also have to install dell's bluetooth package for an updated btusb + firmware (BCM43142A0_001.001.011.0028.0036.hcd), for bluetooth to work: # lsusb | grep Broadcom Bus 004 Device 003: ID 0a5c:21d7 Broadcom Corp. http://wielki.tk/vostro/debs/bt-bcm43142-onereic_0.0+20111116somerville2_amd64.deb Best, Jasmine Hassan On Mon, Oct 1, 2012 at 1:34 PM, John W. Linville <linville@xxxxxxxxxxxxx> wrote: > Why aren't you using brcmsmac? > > On Mon, Oct 01, 2012 at 11:25:49AM +0200, Jasmine Hassan wrote: >> Hi, >> >> I posted this a few days ago against 3.6-rc7, but got no response. >> http://marc.info/?l=linux-wireless&m=134875589522742&w=2 >> >> Tested again today against 3.6 stable, and still triggering kernel bug. >> Attached updated kernel trace from syslog. >> >> Best, >> Jasmine Hassan > >> Oct 1 10:38:47 terra kernel: [ 17.026025] ------------[ cut here ]------------ >> Oct 1 10:38:47 terra kernel: [ 17.028051] kernel BUG at include/net/cfg80211.h:2473! >> Oct 1 10:38:47 terra kernel: [ 17.030240] invalid opcode: 0000 [#1] PREEMPT SMP >> Oct 1 10:38:47 terra kernel: [ 17.032546] Modules linked in: af_packet cpufreq_conservative cpufreq_stats cpufreq_powersave binfmt_misc fuse loop dm_crypt dm_mod snd_hda_codec_hdmi uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core snd_hda_codec_conexant i915 radeon intel_agp intel_gtt videodev i2c_algo_bit ttm drm_kms_helper media btusb bluetooth drm hid_generic snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc joydev i2c_i801 snd_seq_dummy iTCO_wdt iTCO_vendor_support lpc_ich coretemp snd_seq_oss i2c_core mfd_core mei lib80211_crypt_tkip snd_seq_midi wl(PO) snd_seq_midi_event snd_rawmidi kvm_intel cfg80211 kvm snd_seq dell_wmi acpi_cpufreq mperf snd_seq_device snd_timer snd lib80211 dell_laptop(O) rfkill evdev sparse_keymap soundcore microcode psmouse dcdbas pcspkr processor serio_raw video battery ac button wmi ext4 crc16 jbd2 mbcache btrfs libcrc32c zlib_deflate usbhid hid sr_mod sd_mod cdrom crc_t10dif crc32c_intel ghash_clmulni_intel aesni_intel aes_x86_64 f >> Oct 1 10:38:47 terra kernel: an aes_generic ablk_helper cryptd thermal ahci libahci libata scsi_mod r8169 mii xhci_hcd ehci_hcd usbcore usb_common >> Oct 1 10:38:47 terra kernel: [ 17.051679] CPU 0 >> Oct 1 10:38:47 terra kernel: [ 17.051707] Pid: 2708, comm: wpa_supplicant Tainted: P O 3.6-0.slh.1-aptosid-amd64 #1 Dell Inc. Inspiron 5520/0XWH1P >> Oct 1 10:38:47 terra kernel: [ 17.057512] RIP: 0010:[<ffffffffa06e308a>] [<ffffffffa06e308a>] wdev_priv+0x5/0xc [wl] >> Oct 1 10:38:47 terra kernel: [ 17.060546] RSP: 0018:ffff880158cd19e0 EFLAGS: 00010246 >> Oct 1 10:38:47 terra kernel: [ 17.063538] RAX: ffffffffa089ba30 RBX: ffff880159727c00 RCX: 00000000000000ff >> Oct 1 10:38:47 terra kernel: [ 17.066516] RDX: 0000000000000000 RSI: ffff880159727c00 RDI: 0000000000000000 >> Oct 1 10:38:47 terra kernel: [ 17.069503] RBP: 0000000000000000 R08: 0000000000015420 R09: ffff880159727c00 >> Oct 1 10:38:47 terra kernel: [ 17.072490] R10: ffffffffa051b229 R11: ffff880156715c1c R12: ffff880158cd1a98 >> Oct 1 10:38:47 terra kernel: [ 17.075474] R13: 0000000000000001 R14: ffff880159727c00 R15: ffff880156715c24 >> Oct 1 10:38:47 terra kernel: [ 17.078424] FS: 00007f1e952c1700(0000) GS:ffff88015f200000(0000) knlGS:0000000000000000 >> Oct 1 10:38:47 terra kernel: [ 17.081443] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 >> Oct 1 10:38:47 terra kernel: [ 17.084476] CR2: 0000000001ac04b8 CR3: 0000000156693000 CR4: 00000000001407f0 >> Oct 1 10:38:47 terra kernel: [ 17.087551] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 >> Oct 1 10:38:47 terra kernel: [ 17.090597] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 >> Oct 1 10:38:47 terra kernel: [ 17.093667] Process wpa_supplicant (pid: 2708, threadinfo ffff880158cd0000, task ffff8801573754c0) >> Oct 1 10:38:47 terra kernel: [ 17.096715] Stack: >> Oct 1 10:38:47 terra kernel: [ 17.099726] ffffffffa06e395c ffff880159727c00 ffff880157579000 ffff880158cd1a98 >> Oct 1 10:38:47 terra kernel: [ 17.102700] 0000000000000001 ffff8801551a1c00 ffffffffa051b473 ffff880156715c1c >> Oct 1 10:38:47 terra kernel: [ 17.105699] 0000000000000033 0000000000000021 ffff8801575791e0 000000000000009a >> Oct 1 10:38:47 terra kernel: [ 17.108700] Call Trace: >> Oct 1 10:38:47 terra kernel: [ 17.111660] [<ffffffffa06e395c>] ? wl_cfg80211_scan+0x1a/0x1e1 [wl] >> Oct 1 10:38:47 terra kernel: [ 17.114622] [<ffffffffa051b473>] ? nl80211_trigger_scan+0x38d/0x45d [cfg80211] >> Oct 1 10:38:47 terra kernel: [ 17.117621] [<ffffffff81287f0a>] ? genl_rcv_msg+0x1b6/0x1ff >> Oct 1 10:38:47 terra kernel: [ 17.120619] [<ffffffff81287d54>] ? genl_rcv+0x28/0x28 >> Oct 1 10:38:47 terra kernel: [ 17.123606] [<ffffffff812879c1>] ? netlink_rcv_skb+0x36/0x7c >> Oct 1 10:38:47 terra kernel: [ 17.126562] [<ffffffff81287d4b>] ? genl_rcv+0x1f/0x28 >> Oct 1 10:38:47 terra kernel: [ 17.129531] [<ffffffff812874f9>] ? netlink_unicast+0xda/0x15a >> Oct 1 10:38:47 terra kernel: [ 17.132492] [<ffffffff812877f2>] ? netlink_sendmsg+0x279/0x29e >> Oct 1 10:38:47 terra kernel: [ 17.135425] [<ffffffff812594b3>] ? sock_sendmsg+0x4f/0x6c >> Oct 1 10:38:47 terra kernel: [ 17.138303] [<ffffffff810a76ae>] ? __alloc_pages_nodemask+0x139/0x6f2 >> Oct 1 10:38:47 terra kernel: [ 17.141232] [<ffffffff810a12f5>] ? find_get_page+0x61/0x6c >> Oct 1 10:38:47 terra kernel: [ 17.144164] [<ffffffff81259fcd>] ? __sys_sendmsg+0x1f2/0x284 >> Oct 1 10:38:47 terra kernel: [ 17.147090] [<ffffffff8132a335>] ? _raw_spin_unlock+0x1e/0x2c >> Oct 1 10:38:47 terra kernel: [ 17.149996] [<ffffffff810bae61>] ? handle_mm_fault+0x1aa/0x1e7 >> Oct 1 10:38:47 terra kernel: [ 17.152922] [<ffffffff8102ce86>] ? do_page_fault+0x274/0x2f2 >> Oct 1 10:38:47 terra kernel: [ 17.155810] [<ffffffff81011a2c>] ? check_for_xstate+0x22/0x75 >> Oct 1 10:38:47 terra kernel: [ 17.158629] [<ffffffff81011d88>] ? restore_i387_xstate+0xe4/0x1f4 >> Oct 1 10:38:47 terra kernel: [ 17.161484] [<ffffffff8104466c>] ? do_sigaltstack+0xac/0x146 >> Oct 1 10:38:47 terra kernel: [ 17.164324] [<ffffffff8125ab89>] ? sys_sendmsg+0x39/0x57 >> Oct 1 10:38:47 terra kernel: [ 17.167152] [<ffffffff8132aff9>] ? system_call_fastpath+0x16/0x1b >> Oct 1 10:38:47 terra kernel: [ 17.169942] Code: c6 30 70 85 a0 31 c0 e8 22 03 c4 e0 48 c7 c7 30 ab 85 a0 31 c0 e8 14 03 c4 e0 48 89 df e8 73 fd ff ff 31 c0 5b c3 48 85 ff 75 02 <0f> 0b 48 8b 3f eb a4 41 54 41 89 c9 55 53 48 83 ec 50 65 48 8b >> Oct 1 10:38:47 terra kernel: [ 17.176029] RIP [<ffffffffa06e308a>] wdev_priv+0x5/0xc [wl] >> Oct 1 10:38:47 terra kernel: [ 17.178795] RSP <ffff880158cd19e0> >> Oct 1 10:38:47 terra kernel: [ 17.181589] ---[ end trace d0244e8a4dcb2ed4 ]--- >> Oct 1 10:38:47 terra NetworkManager[2670]: <info> wpa_supplicant stopped >> Oct 1 10:38:47 terra NetworkManager[2670]: <info> (eth2): supplicant interface state: inactive -> down >> Oct 1 10:38:47 terra NetworkManager[2670]: <info> (eth2): device state change: disconnected -> unavailable (reason 'supplicant-failed') [30 20 10] >> Oct 1 10:38:47 terra NetworkManager[2670]: <info> (eth2): deactivating device (reason 'supplicant-failed') [10] > > > -- > John W. Linville Someday the world will need a hero, and you > linville@xxxxxxxxxxxxx might be all we have. Be ready. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
