From nobody@FreeBSD.org Mon Apr 11 05:07:25 2011 Return-Path: Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5DBD8106566B for ; Mon, 11 Apr 2011 05:07:25 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 4D2818FC12 for ; Mon, 11 Apr 2011 05:07:25 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p3B57OD0069813 for ; Mon, 11 Apr 2011 05:07:24 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p3B57OXQ069812; Mon, 11 Apr 2011 05:07:24 GMT (envelope-from nobody) Message-Id: <201104110507.p3B57OXQ069812@red.freebsd.org> Date: Mon, 11 Apr 2011 05:07:24 GMT From: Yuri G To: freebsd-gnats-submit@FreeBSD.org Subject: bwn driver causes 20%-50% packet loss X-Send-Pr-Version: www-3.1 X-GNATS-Notify: >Number: 156327 >Category: kern >Synopsis: [bwn] bwn driver causes 20%-50% packet loss >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-wireless >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Apr 11 05:10:11 UTC 2011 >Closed-Date: >Last-Modified: Mon Apr 11 11:51:19 UTC 2011 >Originator: Yuri G >Release: 8.2-RELEASE >Organization: ittomsk.ru >Environment: FreeBSD alienware.local 8.2-RELEASE FreeBSD 8.2-RELEASE #1: Mon Apr 11 08:58:21 NOVST 2011 root@alienware.local:/usr/obj/usr/src/sys/ALIENWARE_8_2 amd64 >Description: Dell Vostro 3500 with Broadcom BCM4312 (as siba reports) accessing AP with WPA-PSK encryption enabled. AP is 2m away from notebook,directly visible. Loaded modules: if_bwn.ko siba_bwn.ko wlan.ko wlan_amrr.ko wlan_wep.ko wlan_ccmp.ko wlan_tkip.ko bwn_v4_lp_ucode.ko. Within first 1-2 mins after boot I get "bwn0: RX decryption attempted (old 0 keyidx 0x2)" errors at tty0. Pinging access point with 1000 packages gives 20% to 50% packet loss. Loading Ubuntu LiveCD at the same conditions and installing offered 802.11 Linux STA driver gives 0% packet loss. >How-To-Repeat: grep -E "wlan|bwn" /boot/loader.conf wlan_load="YES" wlan_wep_load="YES" wlan_ccmp_load="YES" wlan_tkip_load="YES" wlan_amrr_load="YES" if_bwn_load="YES" siba_bwn_load="YES" bwn_v4_lp_ucode_load="YES" grep -E "wlan|bwn" /etc/rc.conf ifconfig_wlan0="WPA DHCP" wlans_bwn0="wlan0" cat /etc/wpa_supplicant.conf network={ ssid="ittomsk.ru" psk="******" } ping 192.168.0.1 (AP address) >Fix: >Release-Note: >Audit-Trail: Responsible-Changed-From-To: freebsd-amd64->freebsd-wireless Responsible-Changed-By: linimon Responsible-Changed-When: Mon Apr 11 11:50:45 UTC 2011 Responsible-Changed-Why: Over to maintainer(s). http://www.freebsd.org/cgi/query-pr.cgi?pr=156327 >Unformatted: