Date: Wed, 31 Aug 2005 22:44:12 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: ticso@cicely.de Cc: freebsd-current@freebsd.org Subject: Re: panic after removing usb flash drive Message-ID: <20050831.224412.98347286.imp@bsdimp.com> In-Reply-To: <20050831174631.GE37930@cicely12.cicely.de> References: <47d0403c05083020044f6ac0be@mail.gmail.com> <4315CEEC.80100@samsco.org> <20050831174631.GE37930@cicely12.cicely.de>
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In message: <20050831174631.GE37930@cicely12.cicely.de>
Bernd Walter <ticso@cicely12.cicely.de> writes:
: Yes - umass creates a SIM, bus and targed, because that is what a user
: really attaches/detaches.
For what it is worth, in the PC Card and CardBus case, the drivers
aren't allowed to 'fail' the detach. They are required to succeed,
and are removed from the driver tree if they try to return a failure
code. All their resources are removed and interrupts are removed.
The hardware is gone, and the driver has no say so about going away.
At least that's the model we currently have.
Warner
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