Subject: Re: panic in new ieee1394 code
To: None <current-users@NetBSD.org>
From: Dave Huang <email@example.com>
Date: 07/20/2005 13:55:19
On Wed, Jul 20, 2005 at 08:40:05PM +0200, Matthias Drochner wrote:
> Only that the disk device does not detach when I disconnect it.
> Is this intended? It might be a good idea to have a device
> survive a temporary connection glitch, as long as it has
> a worldwide unique id... But this should probably be done
> at a higher layer as this is not a firewire specific issue.
I had noticed that too, but then saw this in the sbp(4) manpage:
Some users familiar with umass(4) might wonder why the device is
not detached at the scsi(4) layer when the device is unplugged.
It is detached only if the device has not been plugged again
during several bus resets. This is for preventing to detach an
active file system even when the device cannot be probed
correctly for some reason after a bus reset or when the device is
temporary disconnected because the user changes the bus topology.
If you want to force to detach the device, run fwctl -r several
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