Date: Wed, 20 Sep 2006 12:42:37 -0700 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: "M. L. Dodson" <mldodson@houston.rr.com> Cc: freebsd-firewire@freebsd.org Subject: Re: devfs and hot unplugging firewire device Message-ID: <20060920194236.GJ23915@funkthat.com> In-Reply-To: <200609201414.22322.mldodson@houston.rr.com> References: <200609191005.17015.mldodson@houston.rr.com> <200609191125.35128.mldodson@houston.rr.com> <20060919171950.GD23915@funkthat.com> <200609201414.22322.mldodson@houston.rr.com>
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M. L. Dodson wrote this message on Wed, Sep 20, 2006 at 14:14 -0500: > More experimental results on firewire disks and hot unplugging: > > Transcripts of two sessions can be retrieved from > http://siegfried.utmb.edu/bdodson/firewire.on.histidine.txt and > http://siegfried.utmb.edu/bdodson/firewire.on.serine.txt doh, I think I know what your problem is... you need to do three or so fwcontrol -r's before the device will disappear... This is necessary, since each plug causes a rescan, and you don't want devices disappearing when you add your cd drive... It looks like adding a timeout would be a good thing to the device orphan... If the device has been orphaned for more than a minute, drop it, or three or so resets... Instead of fwcontrol -r, you can plug/unplug another device, and a couple times will cause the device to fall off the bus.. Are you putting a different drive into the same enclosure? If you are, then the disk 'reappears', and apparently geom tastes w/ some of the old info.. if you do: true > /dev/da4 it will force a retaste and the bogus entries should go away... -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
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