libata: Blacklist some Sandisk SSDs for NCQ

Sandisk SSDs SD7SN6S256G and SD8SN8U256G are regularly locking up
regularly under sustained moderate load with NCQ enabled.  Blacklist
for now.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Cc: stable@vger.kernel.org

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 68596bd..a2498f5 100644 (file)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4493,6 +4493,10 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
        /* https://bugzilla.kernel.org/show_bug.cgi?id=15573 */
        { "C300-CTFDDAC128MAG", "0001",         ATA_HORKAGE_NONCQ, },
 
+       /* Some Sandisk SSDs lock up hard with NCQ enabled.  Reported on
+          SD7SN6S256G and SD8SN8U256G */
+       { "SanDisk SD[78]SN*G", NULL,           ATA_HORKAGE_NONCQ, },
+
        /* devices which puke on READ_NATIVE_MAX */
        { "HDS724040KLSA80",    "KFAOA20N",     ATA_HORKAGE_BROKEN_HPA, },
        { "WDC WD3200JD-00KLB0", "WD-WCAMR1130137", ATA_HORKAGE_BROKEN_HPA },