Reattach/redetect allways connected umass device - is it possible ?

[Poul-Henning Kamp]

In message <20050328131318.GC14532 at cicely12.cicely.de>, Bernd Walter writes:
>On Mon, Mar 28, 2005 at 02:13:16PM +0200, Poul-Henning Kamp wrote:
>> In message <20050328114633.GZ14532 at cicely12.cicely.de>, Bernd Walter writes:
>> 
>> >> camcontrol detach da0; camcontrol rescan all 
>> >> helps, but, it should be much better if it will be issued automatically.
>> >
>> >Yes - GEOM seems to ignore media change signals from drives.
>> >I've added PHK to the recipient list - maybe he has an idea about this
>> >problem.
>> 
>> No, GEOM doesn't ignore any such thing, because as far as I know
>> GEOM doesn't get any such thing to ignore in the first place.
>
>At least with (most) SCSI devices you get a media changed exception
>on the first access after that.

Yes, but sane people would argue that is one turn too late in the
game, whouldn' they ?

We should get an async event as soon as the media disappears.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.