stack synchronization

[M. Warner Losh]

In message: <6.1.2.0.2.20050110085622.0338a980 at pop.gmail.com>
            Boris Dinkevich <dinkevich at gmail.com> writes:
: I see no reference to giant locking in 5.3 (except in event/task threads)

It is implicit...

: Does this not affect performance when multiple devices are connected to the 
: host ?

Yes.

: Also, I have seen a modification to the bsd stack by Hans Petter Selasky, 
: where he uses per bus mtxes for locking,
: is this not the better approach to the problem ?

Likely, but there are some issues with Hans' driver still.

: Interrupt is synced via Giant ?

Yes.

Warner