From owner-freebsd-mobile@FreeBSD.ORG Tue Feb 10 16:10:46 2009 Return-Path: Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 249EE106566C for ; Tue, 10 Feb 2009 16:10:46 +0000 (UTC) (envelope-from bengta@P142.sics.se) Received: from sink.sics.se (sink.sics.se [193.10.64.88]) by mx1.freebsd.org (Postfix) with ESMTP id A6F9A8FC1E for ; Tue, 10 Feb 2009 16:10:45 +0000 (UTC) (envelope-from bengta@P142.sics.se) Received: from P142.sics.se (P142.sics.se [193.10.66.253]) by sink.sics.se (8.14.3/8.14.3) with ESMTP id n1AG9k3x015565 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 10 Feb 2009 17:09:47 +0100 (CET) (envelope-from bengta@P142.sics.se) Received: from P142.sics.se (localhost [127.0.0.1]) by P142.sics.se (8.14.3/8.14.3) with ESMTP id n1AG9UwN001302; Tue, 10 Feb 2009 17:09:30 +0100 (CET) (envelope-from bengta@P142.sics.se) Received: (from bengta@localhost) by P142.sics.se (8.14.3/8.14.3/Submit) id n1AG9UJp001301; Tue, 10 Feb 2009 17:09:30 +0100 (CET) (envelope-from bengta@P142.sics.se) To: Ian Smith From: Bengt Ahlgren In-Reply-To: (Bengt Ahlgren's message of "Tue\, 10 Feb 2009 17\:07\:22 +0100") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (berkeley-unix) References: <20090210154047.N38905@sola.nimnet.asn.au> Date: Tue, 10 Feb 2009 17:09:30 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: freebsd-mobile@freebsd.org Subject: Re: Problems with ath at kern.hz=100 X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Feb 2009 16:10:46 -0000 Bengt Ahlgren writes: > Ian Smith writes: > >> On Mon, 9 Feb 2009, Bengt Ahlgren wrote: >> >> > I was changing kern.hz to 100 on my IBM X40 (Pentium-M) laptop to see >> > whether that saves some battery, but ran into problems with ath not >> > working properly. At first I thought that my hardware was failing, >> > but changing hz back to 1000 solved the problem. I am running >> > 7.1-RELEASE-p1 and have the following Atheros chip: >> > >> > Feb 9 11:13:10 P142 kernel: ath_hal: 0.9.20.3 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413) >> > Feb 9 11:13:10 P142 kernel: ath0: mem 0xd0200000-0xd020ffff irq 11 at device 2.0 on pci2 >> > Feb 9 11:13:10 P142 kernel: ath0: [ITHREAD] >> > Feb 9 11:13:10 P142 kernel: ath0: WARNING: using obsoleted if_watchdog interface >> > Feb 9 11:13:10 P142 kernel: ath0: Ethernet address: 00:05:4e:4e:1f:c7 >> > Feb 9 11:13:10 P142 kernel: ath0: mac 5.6 phy 4.1 5ghz radio 1.7 2ghz radio 2.3 >> >> There's an order of magnitude room to move between 100 and 1000 Hz. >> You could also try with maybe 250 or 500? > > I have been running with hz=250 for a while now without the problem > occuring. Just when sending this off, it also happened with hz=250. Bengt