diff -r f810f98b3e99 sys/cam/ata/ata_da.c
--- a/sys/cam/ata/ata_da.c	Tue Sep 05 19:50:03 2017 +0200
+++ b/sys/cam/ata/ata_da.c	Thu Oct 05 21:21:20 2017 +0200
@@ -93,11 +93,13 @@
 typedef enum {
 	ADA_Q_NONE		= 0x00,
 	ADA_Q_4K		= 0x01,
+	ADA_Q_NO_TRIM		= 0x02,
 } ada_quirks;
 
 #define ADA_Q_BIT_STRING	\
 	"\020"			\
-	"\0014K"
+	"\0014K"		\
+	"\002NO_TRIM"
 
 typedef enum {
 	ADA_CCB_RAHEAD		= 0x01,
@@ -378,6 +380,14 @@
 	},
 	{
 		/*
+		 * KingDian S200 60GB P0921B
+		 * Trimming crash the SSD
+		 */
+		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "KingDian S200 *", "*" },
+		/*quirks*/ADA_Q_NO_TRIM
+	},
+	{
+		/*
 		 * Kingston E100 Series SSDs
 		 * 4k optimised & trim only works in 4k requests + 4k aligned
 		 */
@@ -1291,6 +1301,10 @@
 	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
 	if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE)
 		softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
+	/* Device lies about TRIM capability. */
+	if ((softc->quirks & ADA_Q_NO_TRIM) &&
+	    (softc->flags & ADA_FLAG_CAN_TRIM))
+		softc->flags &= ~ADA_FLAG_CAN_TRIM;
 	if (softc->flags & ADA_FLAG_CAN_TRIM) {
 		softc->disk->d_flags |= DISKFLAG_CANDELETE;
 		softc->disk->d_delmaxsize = softc->params.secsize *