--- b/sys/cam/ata/ata_da.c	Sat Oct 14 02:55:24 2017 +0200
+++ b/sys/cam/ata/ata_da.c	Wed Nov 08 12:06:31 2017 +0100
@@ -116,7 +116,8 @@ 
 	ADA_Q_4K		= 0x01,
 	ADA_Q_NCQ_TRIM_BROKEN	= 0x02,
 	ADA_Q_LOG_BROKEN	= 0x04,
-	ADA_Q_SMR_DM		= 0x08
+	ADA_Q_SMR_DM		= 0x08,
+	ADA_Q_NO_TRIM		= 0x10
 } ada_quirks;
 
 #define ADA_Q_BIT_STRING	\
@@ -124,7 +125,8 @@ 
 	"\0014K"		\
 	"\002NCQ_TRIM_BROKEN"	\
 	"\003LOG_BROKEN"	\
-	"\004SMR_DM"
+	"\004SMR_DM"		\
+	"\005NO_TRIM"
 
 typedef enum {
 	ADA_CCB_RAHEAD		= 0x01,
@@ -521,6 +523,14 @@ 
 	},
 	{
 		/*
+		 * 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
 		 */
@@ -1758,6 +1768,10 @@ 
 	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION | DISKFLAG_CANZONE;
 	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 *