Debian Jessie 무선 드라이버 Broadcom 다시 시작(rmmod modprobe) BCM43142 [14e4:4365]

내 Dell 노트북은 Debian 8(Jessie)을 실행하며 다음과 같은 무선 장치를 갖추고 있습니다.

$ lspci -nn -d 14e4:

02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)

그리고 가끔은 잘 작동합니다. 오늘은 잘 작동합니다:

64 bytes from 8.8.8.8: icmp_seq=5168 ttl=57 time=24.6 ms
64 bytes from 8.8.8.8: icmp_seq=5169 ttl=57 time=24.5 ms
64 bytes from 8.8.8.8: icmp_seq=5170 ttl=57 time=24.4 ms
64 bytes from 8.8.8.8: icmp_seq=5171 ttl=57 time=24.8 ms
64 bytes from 8.8.8.8: icmp_seq=5172 ttl=57 time=28.6 ms

그러나 가끔씩(아마도 10분마다) 패킷이 손실되기 시작하고 완전히 막히게 됩니다.

64 bytes from 8.8.8.8: icmp_seq=4631 ttl=57 time=28.7 ms
64 bytes from 8.8.8.8: icmp_seq=4633 ttl=57 time=27.8 ms
64 bytes from 8.8.8.8: icmp_seq=4642 ttl=57 time=25.6 ms
64 bytes from 8.8.8.8: icmp_seq=4651 ttl=57 time=24.6 ms
64 bytes from 8.8.8.8: icmp_seq=4652 ttl=57 time=24.4 ms
64 bytes from 8.8.8.8: icmp_seq=4657 ttl=57 time=23.6 ms
ping: sendmsg: Network is unreachable

이 시점에서 나는

sudo rmmod wl && sudo modprobe wl

무선 드라이버를 잡아서 다시 설치했는데 다시 좋아졌습니다.

64 bytes from 8.8.8.8: icmp_seq=4681 ttl=57 time=38.0 ms
64 bytes from 8.8.8.8: icmp_seq=4682 ttl=57 time=26.1 ms
64 bytes from 8.8.8.8: icmp_seq=4683 ttl=57 time=23.9 ms
64 bytes from 8.8.8.8: icmp_seq=4684 ttl=57 time=24.4 ms

이것은 약간 차선책인 것 같습니다. 작동시키는 방법을 아는 사람이 있습니까?

---- 편집: 이제 다음을 사용합니다.

sudo rmmod wl && sudo modprobe wl && sudo iwconfig wlan0 power off

불쌍한 것을 재설정하면

[Mon Feb  1 17:32:41 2016 <    0.000000>] wl0: link down (wlan0)
[Mon Feb  1 17:32:41 2016 <    0.034491>] cfg80211: Calling CRDA to update world regulatory domain
[Mon Feb  1 17:32:41 2016 <    0.006586>] cfg80211: World regulatory domain updated:
[Mon Feb  1 17:32:41 2016 <    0.000005>] cfg80211:  DFS Master region: unset
[Mon Feb  1 17:32:41 2016 <    0.000003>] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[Mon Feb  1 17:32:41 2016 <    0.000004>] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Mon Feb  1 17:32:41 2016 <    0.000003>] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Mon Feb  1 17:32:41 2016 <    0.000002>] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[Mon Feb  1 17:32:41 2016 <    0.000004>] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[Mon Feb  1 17:32:41 2016 <    0.000003>] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[Mon Feb  1 17:32:41 2016 <    0.000002>] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[Mon Feb  1 17:32:41 2016 <    0.000002>] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[Mon Feb  1 17:32:41 2016 <    0.000003>] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)

[Mon Feb  1 17:32:46 2016 <    4.427237>] wl0: online cpus 1
[Mon Feb  1 17:32:46 2016 <    0.000409>] wlan0: Broadcom BCM4365 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574)

[Mon Feb  1 17:32:47 2016 <    0.765193>] wl0: link up (wlan0)
[Mon Feb  1 17:32:47 2016 <    0.000198>] cfg80211: Calling CRDA for country: TW
[Mon Feb  1 17:32:47 2016 <    0.004048>] cfg80211: Regulatory domain changed to country: TW
[Mon Feb  1 17:32:47 2016 <    0.000005>] cfg80211:  DFS Master region: JP
[Mon Feb  1 17:32:47 2016 <    0.000003>] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[Mon Feb  1 17:32:47 2016 <    0.000004>] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 3000 mBm), (N/A)
[Mon Feb  1 17:32:47 2016 <    0.000003>] cfg80211:   (5270000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 1700 mBm), (0 s)
[Mon Feb  1 17:32:47 2016 <    0.000003>] cfg80211:   (5490000 KHz - 5590000 KHz @ 80000 KHz), (N/A, 3000 mBm), (0 s)
[Mon Feb  1 17:32:47 2016 <    0.000002>] cfg80211:   (5650000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 3000 mBm), (0 s)
[Mon Feb  1 17:32:47 2016 <    0.000002>] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)

링 버퍼에 나타납니다. ( dmesg -dT). 내 컴퓨터가 그것이 대만과 관련이 있다고 생각하는 것 같은지 모르겠습니다. (이곳은 영국입니다)

이 시점에서 우수한 mtr( mtr --curses 8.8.8.8) 표시는 평균 24밀리초 내에 Google DNS로 왕복하는 패킷의 100%를 받고 있음을 나타냅니다.

이는 가변적인 시간 동안 계속되며, 그러면 패킷 손실이 100%에 매우 가까워지고 왕복 시간이 매우 길어집니다(수백 또는 수천 밀리초). 네트워크 관리자는 여전히 내가 연결되어 있다고 생각하지만 실제로는 인터넷에 접속할 수 없습니다.

이때 위의 재설정을 누르면 모든 것이 정상으로 돌아갑니다.

편집하다

아, 링 버퍼에서 이것을 찾았습니다.

[Mon Feb  1 18:14:55 2016 <    0.050609>] ------------[ cut here ]------------
[Mon Feb  1 18:14:55 2016 <    0.000037>] WARNING: CPU: 0 PID: 27429 at /build/linux-x1KGLI/linux-3.16.7-ckt11/net/wireless/sme.c:791 wl_notify_roaming_status+0xbb/0x140 [wl]()
[Mon Feb  1 18:14:55 2016 <    0.000004>] Modules linked in: wl(PO) btrfs xor raid6_pq hfsplus msdos xfs libcrc32c dm_crypt algif_skcipher af_alg dm_mod xt_multiport bnep binfmt_misc uinput ip6t_REJECT xt_hl nfsd ip6t_rt auth_rpcgss oid_registry nfs_acl nfs nf_conntrack_ipv6 lockd fscache nf_defrag_ipv6 sunrpc ipt_REJECT xt_LOG 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 ip_tables x_tables nls_utf8 nls_cp437 vfat rtsx_usb_ms memstick fat ecb btusb uvcvideo iTCO_wdt videobuf2_vmalloc videobuf2_memops joydev bluetooth iTCO_vendor_support videobuf2_core v4l2_common dell_wmi videodev snd_hda_codec_hdmi sparse_keymap media 6lowpan_iphc x86_pkg_temp_thermal intel_powerclamp
[Mon Feb  1 18:14:55 2016 <    0.000082>]  intel_rapl coretemp kvm_intel kvm crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul snd_hda_codec_realtek snd_hda_codec_generic dell_laptop dcdbas glue_helper snd_hda_intel i915 ablk_helper pcspkr psmouse snd_hda_controller evdev snd_hda_codec serio_raw efi_pstore cryptd cfg80211 rfkill snd_hwdep snd_pcm snd_timer snd soundcore drm_kms_helper button drm battery ac i2c_algo_bit i2c_i801 i2c_core video processor mei_me lpc_ich mei shpchp thermal_sys efivars wmi loop fuse parport_pc ppdev lp parport autofs4 ext4 crc16 mbcache jbd2 rtsx_usb_sdmmc mmc_core rtsx_usb mfd_core sg sd_mod sr_mod crc_t10dif cdrom crct10dif_generic ahci ehci_pci ehci_hcd libahci crct10dif_pclmul crct10dif_common xhci_hcd crc32c_intel libata scsi_mod r8169 mii usbcore usb_common [last unloaded: wl]

[Mon Feb  1 18:14:55 2016 <    0.000100>] CPU: 0 PID: 27429 Comm: wl_event_handle Tainted: P        W  O  3.16.0-4-amd64 #1 Debian 3.16.7-ckt11-1+deb8u6
[Mon Feb  1 18:14:55 2016 <    0.000003>] Hardware name: Dell Inc. Inspiron 3537/0MJNYC, BIOS A07 11/12/2013
[Mon Feb  1 18:14:55 2016 <    0.000003>]  0000000000000009 ffffffff8150b4e5 0000000000000000 ffffffff81067767
[Mon Feb  1 18:14:55 2016 <    0.000006>]  ffff880002e4e680 ffff880036c4bd54 ffff880002e4ee9a ffff88014aca3000
[Mon Feb  1 18:14:55 2016 <    0.000005>]  ffff880002e4ea78 ffffffffa12cde1b 0000000000000039 00000000000000d0
[Mon Feb  1 18:14:55 2016 <    0.000006>] Call Trace:
[Mon Feb  1 18:14:55 2016 <    0.000014>]  [<ffffffff8150b4e5>] ? dump_stack+0x41/0x51
[Mon Feb  1 18:14:55 2016 <    0.000010>]  [<ffffffff81067767>] ? warn_slowpath_common+0x77/0x90
[Mon Feb  1 18:14:55 2016 <    0.000021>]  [<ffffffffa12cde1b>] ? wl_notify_roaming_status+0xbb/0x140 [wl]
[Mon Feb  1 18:14:55 2016 <    0.000020>]  [<ffffffffa12cc0b2>] ? wl_event_handler+0x62/0x1e0 [wl]
[Mon Feb  1 18:14:55 2016 <    0.000021>]  [<ffffffffa12cc050>] ? wl_free_wdev.isra.24+0x70/0x70 [wl]
[Mon Feb  1 18:14:55 2016 <    0.000009>]  [<ffffffff81087f7d>] ? kthread+0xbd/0xe0
[Mon Feb  1 18:14:55 2016 <    0.000007>]  [<ffffffff81087ec0>] ? kthread_create_on_node+0x180/0x180
[Mon Feb  1 18:14:55 2016 <    0.000007>]  [<ffffffff81511618>] ? ret_from_fork+0x58/0x90
[Mon Feb  1 18:14:55 2016 <    0.000007>]  [<ffffffff81087ec0>] ? kthread_create_on_node+0x180/0x180
[Mon Feb  1 18:14:55 2016 <    0.000003>] ---[ end trace ff64772df7283e10 ]---

스모킹건처럼 보이는데 어떻게 해야 하나요?

사실 71개가 더 있어요/var/log/kern.log

cat /var/log/kern.log | grep WARNING | grep notify_roaming_status | wc

71    1110   13009

바로 오늘입니다.