[issue727] unloading sound driver panics box

Matthew Dillon dillon at apollo.backplane.com
Tue Jul 10 11:55:19 PDT 2007

:we should switch back to spinlocks and maybe sync the sound code to FreeBSD-7.

    We can't use spinlocks in that code.  FreeBSD assumes they are sleepable
    mutexes so we have to use lockmgr locks (which are basically the same


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