From: "Vadim A. Misbakh-Soloviov" <mva@mva.name>
To: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list@broadcom.com
Subject: brcmsmac problems
Date: Wed, 09 Jan 2013 13:23:32 +0700 [thread overview]
Message-ID: <50ED0CE4.1000502@mva.name> (raw)
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Hello there!
Unfortunately, all the time I use laptops with broadcom WiFi cards I
experience problems with them. So, I feel unlucky with it.
Currenlty, I've Lenovo IdeaPad B570 laptop with
>> 03:00.0 Network controller [0280]: Broadcom Corporation BCM4313
802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
First of all, I can't get it to work on 11n wifi. My maximum
download/upload speed is 1.7-2 Mbytes/s, while if I insert atheros card
— I get 8-10Mbytes/s. And NetworkManager says "connection speed" is
12-18-28.9Mb/s on bcm4313 and 140+Mb/s on atheros. So, I guess it really
works in 11g, but not 11n.
Secondly, I've a bunch of issues with it:
I can't get it to work with broadcom-sta (wl) driver, so using
b43/brcmsmac for a long time.
All the time I using it — sometimes I experience connection-freezes (no
incoming packets from AP) for few minutes, or until I stop services like
avahi or torrent or IMAP-client.
Sometimes I even experience reconnect-loops, and sometimes I even
experience kernel-oops like this:
Jan 6 19:23:51 localhost kernel: [77873.116584] ------------[ cut here
]------------
Jan 6 19:23:51 localhost kernel: [77873.116611] WARNING: at
drivers/net/wireless/brcm80211/brcmsmac/main.c:7993
brcms_c_wait_for_tx_completion+0x91/0xa0 [brcmsmac]()
Jan 6 19:23:51 localhost kernel: [77873.116615] Hardware name:
HuronRiver Platform
Jan 6 19:23:51 localhost kernel: [77873.116618] Modules linked in:
vhba(O) brcmsmac brcmutil b43 ssb bcma mac80211 bbswitch(O)
Jan 6 19:23:51 localhost kernel: [77873.116637] Pid: 21940, comm:
kworker/u:2 Tainted: G O 3.7.1-geek-note #1
Jan 6 19:23:51 localhost kernel: [77873.116640] Call Trace:
Jan 6 19:23:51 localhost kernel: [77873.116664] [<ffffffff81004988>]
dump_trace+0x88/0x300
Jan 6 19:23:51 localhost kernel: [77873.116679] [<ffffffff81b3915e>]
dump_stack+0x72/0x78
Jan 6 19:23:51 localhost kernel: [77873.116684] [<ffffffff8105d9eb>]
warn_slowpath_common+0x7b/0xc0
Jan 6 19:23:51 localhost kernel: [77873.116690] [<ffffffffa00f8421>]
brcms_c_wait_for_tx_completion+0x91/0xa0 [brcmsmac]
Jan 6 19:23:51 localhost kernel: [77873.116709] [<ffffffffa00eb1a2>]
brcms_ops_flush+0x32/0x50 [brcmsmac]
Jan 6 19:23:51 localhost kernel: [77873.116717] [<ffffffffa0029ecc>]
ieee80211_mgd_probe_ap.part.44+0x12c/0x150 [mac80211]
Jan 6 19:23:51 localhost kernel: [77873.116754] [<ffffffff81074b42>]
process_one_work+0x112/0x370
Jan 6 19:23:51 localhost kernel: [77873.116758] [<ffffffff8107633a>]
worker_thread+0x15a/0x3e0
Jan 6 19:23:51 localhost kernel: [77873.116762] [<ffffffff8107af03>]
kthread+0xb3/0xc0
Jan 6 19:23:51 localhost kernel: [77873.116766] [<ffffffff81b469ac>]
ret_from_fork+0x7c/0xb0
Jan 6 19:23:51 localhost kernel: [77873.116770] ---[ end trace
37aa45c524256334 ]---
Can somebody help me to debug this issue and finally fix it?
--
Best regards,
mva
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reply other threads:[~2013-01-09 6:29 UTC|newest]
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