From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from forward7.mail.yandex.net ([77.88.61.37]:56571 "EHLO forward7.mail.yandex.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751694Ab3AIG36 (ORCPT ); Wed, 9 Jan 2013 01:29:58 -0500 Message-ID: <50ED0CE4.1000502@mva.name> (sfid-20130109_073002_431165_3C790F91) Date: Wed, 09 Jan 2013 13:23:32 +0700 From: "Vadim A. Misbakh-Soloviov" MIME-Version: 1.0 To: linux-wireless@vger.kernel.org CC: brcm80211-dev-list@broadcom.com Subject: brcmsmac problems Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig02853AAD404DA20A09270F8D" Sender: linux-wireless-owner@vger.kernel.org List-ID: This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig02853AAD404DA20A09270F8D Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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 =E2=80=94 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 =E2=80=94 sometimes I experience connection-freez= es (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] [] dump_trace+0x88/0x300 Jan 6 19:23:51 localhost kernel: [77873.116679] [] dump_stack+0x72/0x78 Jan 6 19:23:51 localhost kernel: [77873.116684] [] warn_slowpath_common+0x7b/0xc0 Jan 6 19:23:51 localhost kernel: [77873.116690] [] brcms_c_wait_for_tx_completion+0x91/0xa0 [brcmsmac] Jan 6 19:23:51 localhost kernel: [77873.116709] [] brcms_ops_flush+0x32/0x50 [brcmsmac] Jan 6 19:23:51 localhost kernel: [77873.116717] [] ieee80211_mgd_probe_ap.part.44+0x12c/0x150 [mac80211] Jan 6 19:23:51 localhost kernel: [77873.116754] [] process_one_work+0x112/0x370 Jan 6 19:23:51 localhost kernel: [77873.116758] [] worker_thread+0x15a/0x3e0 Jan 6 19:23:51 localhost kernel: [77873.116762] [] kthread+0xb3/0xc0 Jan 6 19:23:51 localhost kernel: [77873.116766] [] 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 --------------enig02853AAD404DA20A09270F8D Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQIcBAEBAgAGBQJQ7QzkAAoJECZQPTSbOzNLabEQAIVc+JQjgjY6AajXKRlVfn/E NI90unRZu80wKQHgqTH2V8YqasTNqrjWqioU4lzw/30B0Wb2EFE0NOwIMens73y+ ZdX17FKrR67JChoUdz+uDLE7D6rAhbRHFNpf/kPWLKwuVYyrYsiRWa6xpwHlN0xA 6vzjNsNBWDT1iakhmwq1VMGztxtxUU9u0V9uXIUKcG1WUTJqkwDjteYAGgSPvSZa e510QyZSX2M90DdNBczxg030n6kuSNt6aeqYtT2FTOICFCqj4UjOu68C8MU4b85p cD/HFSRK5uJRgn+uCv4MIq4OS+kcX3jVfHvlkJ+9FwNWNNVzEgQc4EBpFMts+RC5 7Geahy2xaR8JoH35nVJ/2WyZTQmiO+4uaD0Vpc80Tvvs+7+V0gGCa6T5zN1+9qxV d9FzuhkPQIJyAv9x+SlysK/EmHgL6LINm5qnzLj0pRJiA71YP8sLw7e3BvRDD0JM 9ipxi42aM60wjmLOEadDDZNJzq2il9GPfiJroEHCnLtd7UqRERIYNJrvYqNQVxZv 2UlKiBoMZlml7XY43VbGoAJEYF5yX9/mHwpSNhNp+2YekAuUQ6CVoomYJH6zX3LC 0UzDHW91Oh5T/IxavhzAfUEV8uBZbqbyFJW9wMw+kKsJ0NdJoiBxfk/zm3pUpv6Q 2fYyNxDl3jS0aFdjQ4mV =3IJz -----END PGP SIGNATURE----- --------------enig02853AAD404DA20A09270F8D--