panic: spin_lock: 0xe4ad1320, indefinitive wait!

[Matthew Dillon]

    In the release code the spinlock is very short duration.  All I
    can think of is that there might be a MP race somewhere.  There
    are a few places in the release kernel where p_ucred is used as
    if it were MPSAFE when, in fact, it was not MPSAFE.

    Well, that spin lock was removed from master and the cred handling
    code was rewritten.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>