From owner-freebsd-mobile Sun Nov 19 8:59: 2 2000 Delivered-To: freebsd-mobile@freebsd.org Received: from ns.yogotech.com (ns.yogotech.com [206.127.123.66]) by hub.freebsd.org (Postfix) with ESMTP id C325B37B4C5 for ; Sun, 19 Nov 2000 08:58:58 -0800 (PST) Received: from nomad.yogotech.com (nomad.yogotech.com [206.127.123.131]) by ns.yogotech.com (8.9.3/8.9.3) with ESMTP id JAA28721; Sun, 19 Nov 2000 09:58:57 -0700 (MST) (envelope-from nate@nomad.yogotech.com) Received: (from nate@localhost) by nomad.yogotech.com (8.8.8/8.8.8) id JAA06489; Sun, 19 Nov 2000 09:58:53 -0700 (MST) (envelope-from nate) From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <14872.1741.13164.291719@nomad.yogotech.com> Date: Sun, 19 Nov 2000 09:58:53 -0700 (MST) To: Mark Diekhans Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: PCMCIA modems locking up system under 4.1.1 In-Reply-To: <200011190851.AAA97559@kermodei.com> References: <200011190851.AAA97559@kermodei.com> X-Mailer: VM 6.75 under 21.1 (patch 12) "Channel Islands" XEmacs Lucid Reply-To: nate@yogotech.com (Nate Williams) Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > Hi folks, > I am having problems with PCMICA modems locking up FreeBSD 4.1.1 > on a laptop. This happens rather frequently, probably most often > on card eject, although it happens other times as well. Lockups on eject is an occurance that can't be totally avoided. The lockup can be minimized by *NOT* using polling (which makes the race window much smaller). The other way to avoid it is to 'power down' the card before removing it, although I don't know if the 'power' code is in 4.x. If it is, you should be able to power down the card before removing it w/out any lockups. If it's locking up outside of card eject, then something is *really* messed up, since it "shouldn't happen". (FWIW, WinXX will also lockup with modems on occasion, although because they use an IRQ for insertion/removal events the race window is very small....) See the mobile archives for a much more in-depth look at this problem. Naet To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message