xubuntu-14.04 系统在启动过程中关于无线网卡的错误信息（已解决）

看样子好像是无线网卡方面的问题，暂不影响使用，无线网卡在启动后也能正常使用。
硬件信息如下：
$ lspci
07:00.0 Ethernet controller: Qualcomm Atheros QCA8171 Gigabit Ethernet (rev 10)
08:00.0 Network controller: Broadcom Corporation BCM43142 802.11b/g/n (rev 01)
系统内核版本：
$ uname -a
Linux myhost 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:22:43 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

/var/log/kern.log中部分日志如下：
Dec 28 21:43:32 myhost kernel: [16670.059143] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Dec 28 21:43:32 myhost kernel: [16670.059146] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Dec 28 21:43:32 myhost kernel: [16670.059148] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Dec 28 21:43:35 myhost kernel: [16672.565454] ————[ cut here ]————
Dec 28 21:43:35 myhost kernel: [16672.565476] WARNING: CPU: 4 PID: 454 at /build/buildd/linux-3.13.0/net/wireless/sme.c:797 cfg80211_roamed+0x89/0x90 cfg80211
Dec 28 21:43:35 myhost kernel: [16672.565488] Modules linked in: usb_storage bnep rfcomm nls_iso8859_1 snd_hda_codec_hdmi snd_hda_codec_realtek uvcvideo videobuf2_vmalloc btusb videobuf2_memops bluetooth videobuf2_core videodev x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel lib80211_crypt_tkip aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev serio_raw snd_hda_intel snd_hda_codec snd_hwdep lpc_ich snd_pcm wl(POX) snd_page_alloc lib80211 nouveau snd_seq_midi i915 snd_seq_midi_event snd_rawmidi cfg80211 snd_seq snd_seq_device mxm_wmi snd_timer ttm mei_me drm_kms_helper mei snd drm soundcore i2c_algo_bit parport_pc ppdev lp parport ideapad_laptop sparse_keymap video wmi mac_hid hid_generic usbhid hid ahci psmouse alx libahci mdio
Dec 28 21:43:35 myhost kernel: [16672.565585] CPU: 4 PID: 454 Comm: wl_event_handle Tainted: P OX 3.13.0-40-generic #69-Ubuntu
Dec 28 21:43:35 myhost kernel: [16672.565596] Hardware name: LENOVO 20435/BIQY0, BIOS 74CN52WW(V3.57) 05/05/2014
Dec 28 21:43:35 myhost kernel: [16672.565599] 0000000000000009 ffff880087eb7d88 ffffffff8171f226 0000000000000000
Dec 28 21:43:35 myhost kernel: [16672.565610] ffff880087eb7dc0 ffffffff810677cd ffff880168fa5000 ffff8801389890c0
Dec 28 21:43:35 myhost kernel: [16672.565623] 000000000000009b ffff880118240e80 0000000000000001 ffff880087eb7dd0
Dec 28 21:43:35 myhost kernel: [16672.565630] Call Trace:
Dec 28 21:43:35 myhost kernel: [16672.565641] [] dump_stack+0x45/0x56
Dec 28 21:43:35 myhost kernel: [16672.565649] [] warn_slowpath_common+0x7d/0xa0
Dec 28 21:43:35 myhost kernel: [16672.565655] [] warn_slowpath_null+0x1a/0x20
Dec 28 21:43:35 myhost kernel: [16672.565680] [] cfg80211_roamed+0x89/0x90 [cfg80211]
Dec 28 21:43:35 myhost kernel: [16672.565753] [] wl_bss_connect_done.isra.21+0x98/0x1a0 [wl]
Dec 28 21:43:35 myhost kernel: [16672.565819] [] wl_notify_connect_status+0x1fc/0x410 [wl]
Dec 28 21:43:35 myhost kernel: [16672.565882] [] wl_event_handler+0x55/0x220 [wl]
Dec 28 21:43:35 myhost kernel: [16672.565944] [] ? wl_get_assoc_ies+0x240/0x240 [wl]
Dec 28 21:43:35 myhost kernel: [16672.565951] [] kthread+0xd2/0xf0
Dec 28 21:43:35 myhost kernel: [16672.565957] [] ? kthread_create_on_node+0x1c0/0x1c0
Dec 28 21:43:35 myhost kernel: [16672.565963] [] ret_from_fork+0x7c/0xb0
Dec 28 21:43:35 myhost kernel: [16672.565970] [] ? kthread_create_on_node+0x1c0/0x1c0
Dec 28 21:43:35 myhost kernel: [16672.565974] —[ end trace 0a49816fbc002f01 ]—
Dec 29 10:35:04 myhost kernel: [63012.837849] cfg80211: Calling CRDA to update world regulatory domain
Dec 29 10:35:04 myhost kernel: [63012.917091] cfg80211: World regulatory domain updated:
Dec 29 10:35:04 myhost kernel: [63012.917094] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Dec 29 10:35:04 myhost kernel: [63012.917095] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Dec 29 10:35:04 myhost kernel: [63012.917097] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Dec 29 10:35:04 myhost kernel: [63012.917098] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Dec 29 10:35:04 myhost kernel: [63012.917099] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Dec 29 10:35:04 myhost kernel: [63012.917100] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jan 20 20:35:06 myhost kernel: [ 0.000000] CPU0 microcode updated early to revision 0x1a, date = 2014-05-23
Jan 20 20:35:06 myhost kernel: [ 0.000000] Initializing cgroup subsys cpuset
Jan 20 20:35:06 myhost kernel: [ 0.000000] Initializing cgroup subsys cpu
Jan 20 20:35:06 myhost kernel: [ 0.000000] Initializing cgroup subsys cpuacct
Jan 20 20:35:06 myhost kernel: [ 0.000000] Linux version 3.13.0-40-generic (buildd@comet) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #69-Ubuntu SMP Thu Nov 13 17:53:56 UTC 2014 (Ubuntu 3.13.0-40.69-generic 3.13.11.10)

先记录在这里，待空了再解决。
昨天晚上搞定：是无线网卡Broadcom Corporation BCM43142 的固件方面的问题，具体的原因我还描述不出来？
就是安装firmware-b43-installer 　b43-fwcutter，其中后者会自动从网上下载一个包含了网卡固件的压缩包，解压在系统下/lib/firmware/b43/目录下。之后，重启系统，就不会再报错了:-)

$ sudo apt-get install firmware-b43-installer
正在读取软件包列表… 完成
正在分析软件包的依赖关系树
正在读取状态信息… 完成
将会安装下列额外的软件包：
b43-fwcutter
下列【新】软件包将被安装：
b43-fwcutter firmware-b43-installer
升级了 0 个软件包，新安装了 2 个软件包，要卸载 0 个软件包，有 5 个软件包未被升级。
需要下载 0 B/30.4 kB 的软件包。
解压缩后会消耗掉 154 kB 的额外空间。
您希望继续执行吗？ [Y/n]
正在预设定软件包 …
Selecting previously unselected package b43-fwcutter.
(正在读取数据库 … 系统当前共安装有 257074 个文件和目录。)
Preparing to unpack …/b43-fwcutter_1%3a018-2_amd64.deb …
Unpacking b43-fwcutter (1:018-2) …
Selecting previously unselected package firmware-b43-installer.
Preparing to unpack …/firmware-b43-installer_1%3a018-2_all.deb …
Unpacking firmware-b43-installer (1:018-2) …
Processing triggers for man-db (2.6.7.1-1ubuntu1) …
正在设置 b43-fwcutter (1:018-2) …
正在设置 firmware-b43-installer (1:018-2) …
No chroot environment found. Starting normal installation
–2015-02-12 20:54:59– http://www.lwfinger.com/b43-firmware/broadcom-wl-5.100.138.tar.bz2
正在解析主机 www.lwfinger.com (www.lwfinger.com)… 173.254.28.119
正在连接 www.lwfinger.com (www.lwfinger.com)|173.254.28.119|:80… 已连接。
已发出 HTTP 请求，正在等待回应… 200 OK
长度： 13514651 (13M) [application/x-bzip2]
正在保存至: “broadcom-wl-5.100.138.tar.bz2”

100%[++++++++++++++++++++========================================>] 13,514,651 83.4KB/s 用时 2m 9s

2015-02-12 21:02:31 (68.0 KB/s) - 已保存 “broadcom-wl-5.100.138.tar.bz2” [13514651/13514651])

Deleting old extracted firmware…
broadcom-wl-5.100.138/
broadcom-wl-5.100.138/linux/
broadcom-wl-5.100.138/linux/wl_apsta.o
broadcom-wl-5.100.138/linux/wl_ap.o
broadcom-wl-5.100.138/linux/wl_sta.o
broadcom-wl-5.100.138/README
broadcom-wl-5.100.138/config/
broadcom-wl-5.100.138/config/wlconfig_lx_shared
broadcom-wl-5.100.138/config/wl.mk
broadcom-wl-5.100.138/config/wl_default
broadcom-wl-5.100.138/config/wl_hnd
broadcom-wl-5.100.138/config/wlconfig_nomimo
This file is recognised as:
filename : wl_apsta.o
version : 666.2
MD5 : e1b05e268bcdbfef3560c28fc161f30e
Extracting b43/lp0initvals14.fw
Extracting b43/lcn0bsinitvals25.fw
Extracting b43/n0bsinitvals25.fw
Extracting b43/n0bsinitvals17.fw
Extracting b43/ucode17_mimo.fw
Extracting b43/ucode16_lp.fw
Extracting b43/sslpn1initvals27.fw
Extracting b43/lp2bsinitvals19.fw
Extracting b43/sslpn3bsinitvals21.fw
Extracting b43/ucode16_sslpn.fw
ucode time: 01:15:07
Extracting b43/ucode25_lcn.fw
Extracting b43/ucode21_sslpn.fw
Extracting b43/lp0bsinitvals14.fw
Extracting b43/b0g0initvals9.fw
Extracting b43/ucode20_sslpn.fw
Extracting b43/a0g1bsinitvals9.fw
Extracting b43/lp1initvals20.fw
Extracting b43/b0g0bsinitvals13.fw
Extracting b43/lp2initvals19.fw
Extracting b43/n2bsinitvals19.fw
Extracting b43/sslpn4bsinitvals22.fw
Extracting b43/ucode16_sslpn_nobt.fw
ucode date: 2011-02-23
Extracting b43/n1bsinitvals20.fw
Extracting b43/n1initvals20.fw
Extracting b43/b0g0bsinitvals5.fw
Extracting b43/ucode22_sslpn.fw
Extracting b43/b0g0initvals13.fw
Extracting b43/ht0initvals26.fw
Extracting b43/ucode33_lcn40.fw
Extracting b43/sslpn1bsinitvals20.fw
Extracting b43/lcn400bsinitvals33.fw
Extracting b43/ucode14.fw
Extracting b43/a0g0initvals5.fw
Extracting b43/lp1bsinitvals22.fw
Extracting b43/n16initvals30.fw
Extracting b43/lp0bsinitvals16.fw
Extracting b43/lcn1bsinitvals25.fw
Extracting b43/lcn400initvals33.fw
Extracting b43/n0bsinitvals24.fw
Extracting b43/lcn2bsinitvals26.fw
Extracting b43/lcn1initvals26.fw
Extracting b43/n0bsinitvals22.fw
Extracting b43/n18initvals32.fw
Extracting b43/lcn2initvals26.fw
Extracting b43/a0g1bsinitvals5.fw
Extracting b43/n0bsinitvals11.fw
Extracting b43/lcn2initvals24.fw
Extracting b43/lcn0initvals26.fw
Extracting b43/n0absinitvals11.fw
Extracting b43/ucode21_sslpn_nobt.fw
ucode time: 01:15:07
Extracting b43/ucode26_mimo.fw
Extracting b43/n2initvals19.fw
Extracting b43/sslpn3initvals21.fw
Extracting b43/a0g1bsinitvals13.fw
Extracting b43/sslpn4initvals22.fw
Extracting b43/pcm5.fw
Extracting b43/ucode22_mimo.fw
Extracting b43/ucode9.fw
Extracting b43/lcn2initvals25.fw
Extracting b43/lp1initvals22.fw
Extracting b43/sslpn1bsinitvals27.fw
Extracting b43/lcn0initvals24.fw
Extracting b43/ucode32_mimo.fw
Extracting b43/a0g0bsinitvals9.fw
Extracting b43/n18bsinitvals32.fw
Extracting b43/n0initvals24.fw
Extracting b43/n0initvals25.fw
Extracting b43/a0g1initvals5.fw
Extracting b43/ucode24_lcn.fw
Extracting b43/n0initvals17.fw
Extracting b43/n0bsinitvals16.fw
Extracting b43/lp0initvals15.fw
Extracting b43/b0g0initvals5.fw
Extracting b43/ucode20_sslpn_nobt.fw
Extracting b43/lcn1initvals24.fw
Extracting b43/sslpn0initvals16.fw
Extracting b43/a0g1initvals13.fw
Extracting b43/lp1bsinitvals20.fw
Extracting b43/sslpn2initvals19.fw
Extracting b43/a0g1initvals9.fw
Extracting b43/lcn1bsinitvals24.fw
Extracting b43/ucode5.fw
Extracting b43/lcn2bsinitvals24.fw
Extracting b43/lp0bsinitvals13.fw
Extracting b43/n0initvals16.fw
Extracting b43/ucode19_sslpn_nobt.fw
Extracting b43/b0g0bsinitvals9.fw
Extracting b43/ucode11.fw
Extracting b43/lp0initvals16.fw
Extracting b43/ucode16_mimo.fw
Extracting b43/lcn0bsinitvals26.fw
Extracting b43/ht0initvals29.fw
Extracting b43/lcn2bsinitvals25.fw
Extracting b43/a0g0initvals9.fw
Extracting b43/ucode29_mimo.fw
Extracting b43/lcn0bsinitvals24.fw
Extracting b43/ucode19_sslpn.fw
Extracting b43/lcn1initvals25.fw
Extracting b43/ucode30_mimo.fw
Extracting b43/n16bsinitvals30.fw
Extracting b43/ucode25_mimo.fw
Extracting b43/ucode24_mimo.fw
Extracting b43/ucode27_sslpn.fw
Extracting b43/lp0initvals13.fw
Extracting b43/a0g0bsinitvals5.fw
Extracting b43/ht0bsinitvals26.fw
Extracting b43/ucode13.fw
Extracting b43/sslpn2bsinitvals19.fw
Extracting b43/ucode15.fw
Extracting b43/lp0bsinitvals15.fw
Extracting b43/n0initvals11.fw
Extracting b43/lcn0initvals25.fw
Extracting b43/sslpn0bsinitvals16.fw
Extracting b43/sslpn1initvals20.fw
Extracting b43/lcn1bsinitvals26.fw
Extracting b43/n0initvals22.fw
Extracting b43/ht0bsinitvals29.fw
user@myhost :/var/log$

不过问题又来了，　我看了这２个软件安装包的文件信息：
user@myhost :~$ dpkg -L b43-fwcutter
/.
/usr
/usr/share
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/b43-fwcutter.1.gz
/usr/share/doc
/usr/share/doc/b43-fwcutter
/usr/share/doc/b43-fwcutter/README
/usr/share/doc/b43-fwcutter/copyright
/usr/share/doc/b43-fwcutter/NEWS.Debian.gz
/usr/share/doc/b43-fwcutter/changelog.Debian.gz
/usr/bin
/usr/bin/b43-fwcutter

user@myhost :~$ dpkg -L firmware-b43-installer
/.
/lib
/lib/firmware
/lib/firmware/b43
/usr
/usr/share
/usr/share/lintian
/usr/share/lintian/overrides
/usr/share/lintian/overrides/firmware-b43-installer
/usr/share/doc
/usr/share/doc/firmware-b43-installer
/usr/share/doc/firmware-b43-installer/copyright
/usr/share/doc/firmware-b43-installer/NEWS.Debian.gz
/usr/share/doc/firmware-b43-installer/changelog.Debian.gz

就是系统在解压并安装完软件包后，自动从网上下载驱动的脚本，是哪里？
１、关于dpkg-deb方面还有待仔细了解。
２、另外，在gentoo下也有同样的错误日志，等空了也把它解决掉。