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On Sat, Sep 23, 2006 at 10:16:36PM +0000, Emmanuel Dreyfus wrote:
  | - do not refuse multiple device openings, as the management tool will do it.
  |   I'm not sure we are safe. FreeBSD allows multiple openings, and use the
  |   open flag only when an attempt to detach the device is done.

I vaguely recall problems in certain situations where the firmware
on the 3ware cards will lock up if you try to ask them to do too
much at once, such as starting a long running operation, and then
querying it as well.
(Unfortunately, I don't recall the details.)
As such, you may find this part of the change to be a bit adventurous.

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