Date: Sun, 19 Nov 2000 09:58:53 -0700 (MST) From: Nate Williams <nate@yogotech.com> To: Mark Diekhans <markd@Kermodei.com> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: PCMCIA modems locking up system under 4.1.1 Message-ID: <14872.1741.13164.291719@nomad.yogotech.com> In-Reply-To: <200011190851.AAA97559@kermodei.com> References: <200011190851.AAA97559@kermodei.com>
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> 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
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