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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