D24528.diff
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	Index: head/sys/kern/sys_pipe.c
	===================================================================
	--- head/sys/kern/sys_pipe.c
	+++ head/sys/kern/sys_pipe.c
	@@ -1430,7 +1430,8 @@

	if ((events & POLLINIGNEOF) == 0) {
	if (rpipe->pipe_state & PIPE_EOF) {
	- revents \|= (events & (POLLIN \| POLLRDNORM));
	+ if (fp->f_flag & FREAD)
	+ revents \|= (events & (POLLIN \| POLLRDNORM));
	if (wpipe->pipe_present != PIPE_ACTIVE \|\|
	(wpipe->pipe_state & PIPE_EOF))
	revents \|= POLLHUP;