PHP 5.4.5 Sendmail issues on Mountain Lion

I have been having issues on Mountain Lion with PHP 5.4.5 and sendmail.

The issue I'm having is after a while of PHP FPM running, sendmail doesn't receive any response from php as to
what to send and they just start eating CPU like no tomorrow.

Result from ps -ev
PID		STAT	TIME		SL	RE	PAGEIN	VSZ		RSS		LIM	TSIZ	%CPU	%MEM	COMMAND
63033	R+		36:04.95	0	0	0		2487444	11592	-	0		7.5		0.3		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
62705	R+		71:46.92	0	0	0		2487444	11488	-	0		9.3		0.3		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64097	S+		6:13.31		0	0	0		2486420	10872	-	0		11.1	0.3		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
62852	R+		98:04.71	0	0	0		2487444	10724	-	0		17.6	0.3		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63192	R+		16:56.78	0	0	0		2487444	10536	-	0		18.0	0.3		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
62696	S+		82:22.54	0	0	0		2486932	10508	-	0		7.0		0.3		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63228	R+		48:22.29	0	0	0		2486932	10376	-	0		11.2	0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64245	S+		0:01.39		0	0	0		2485396	10068	-	0		0.0		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64170	S+		0:01.91		0	0	0		2486800	9980	-	0		0.0		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64016	S+		12:42.38	0	0	0		2486932	9832	-	0		17.3	0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63735	R+		25:47.13	0	0	0		2485908	9804	-	0		6.6		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
62697	R+		108:26.24	0	0	0		2488980	9520	-	0		5.5		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64417	S+		0:00.55		0	0	0		2490004	9164	-	0		0.0		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
62695	S+		0:01.12		0	0	0		2453520	7220	-	0		0.0		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63356	R+		30:00.65	0	0	0		2484628	6664	-	0		7.2		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64416	S+		0:00.52		0	0	0		2484116	6308	-	0		0.0		0.2		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63834	R+		16:53.13	0	0	0		2483604	6224	-	0		6.2		0.1		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
62972	R+		92:41.92	0	0	0		2484628	5984	-	0		5.7		0.1		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63123	R+		77:41.10	0	0	0		2456980	5792	-	0		7.5		0.1		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63896	R+		20:12.37	0	0	0		2456468	5740	-	0		17.4	0.1		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
64090	R+		16:42.77	0	0	0		2475156	4664	-	0		6.4		0.1		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63894	R+		25:53.20	0	0	0		2474132	4660	-	0		11.2	0.1		/usr/local/sbin/php-fpm -y /usr/local/etc/php-fpm.conf
63024	R+		91:44.42	0	0	0		2434384	1692	-	0		11.3	0.0		/usr/sbin/sendmail -t -i