Date: Mon, 11 Jun 2007 09:02:10 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: "M. Warner Losh" <imp@bsdimp.com> Cc: freebsd-current@freebsd.org, nike_d@cytexbg.com Subject: Re: panic when removing pccard Message-ID: <200706110902.10822.hselasky@c2i.net> In-Reply-To: <20070608.121148.-957834607.imp@bsdimp.com> References: <466913F0.2060200@cytexbg.com> <200706081220.34991.hselasky@c2i.net> <20070608.121148.-957834607.imp@bsdimp.com>
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On Friday 08 June 2007 20:11, M. Warner Losh wrote: > In message: <200706081220.34991.hselasky@c2i.net> > > Hans Petter Selasky <hselasky@c2i.net> writes: > : On Friday 08 June 2007 10:31, Niki Denev wrote: > : > -----BEGIN PGP SIGNED MESSAGE----- > : > Hash: SHA1 > : > > : > I experience the following panic on a few days old -current : > : > > : > If i insert and then remove a pcmcia card using the ubsa module > : > (Vodafone Mobile Connect, which actually is Huawei E630 UMTS/HSDPA > : > modem) the machine panics, because i think the order of removal of the > : > devices by the kernel is not correct. I'm not sure because i don't have > : > -STABLE machine with pcmcia now, but i think this problem does not > : > exist there. > : > > : > Here is what happens when card is inserted : > : > : Hi! > : > : If you want to be able to remove the card you need to install the new USB > : stack. The old USB stack is completely broken when it comes to this > : point! > > My experiences with the old stack differ. I've done this many times > without ill effect for my usb 2.0 cards and my combo usb 2.0/Firewire > cards. What's the specific problem with the old stack? If you replug a PCMCIA USB device multiple times, will you not end up with multiple USB ghost devices under /dev? Or has this been fixed? --HPS
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