Patch ID	: P94053101
Summary		: Fix for poll on socket failing to see data arrival
Status		: Mandatory
Date		: 05/31/94
Release		: OS 4.1C
Architectures	: Series5 Series6 S4000
Affected bugs	:
	B940405006
	B940519001

Changed files	:
	sys/os/sys_generic.c (delta 1.4)
	sys/os/str_syscalls.c (delta 1.3)
	sys/kap/multicpu.c (delta 1.17)
	sys/os/str_io.c (delta 1.3)

Problem Description:

This patch fixes a race condition that can result in poll failing to notice
data arriving on a socket. 

This problem has been seen in SVM where volprint will sometimes hang for
60 seconds waiting for a response from vold. vold was going to sleep in poll
just as the request packet arrived.
