K 10
svn:author
V 6
marius
K 8
svn:date
V 27
2006-09-03T21:20:21.000000Z
K 7
svn:log
V 347
Do as the USII CPU manual suggests and leave interrupts enabled
for a bit before retrying to resend an IPI in order to avoid
deadlocks if the other CPU is also trying to send one.
OpenSolaris uses a delay of 1 microsecond here but waiting 2
microseconds with interrupts enabled like Linux does shouldn't
hurt but is a bit safer.

MFC after:	1 day

END