linux-kernel - [PATCH 4.4 008/268] libata: Blacklist some Sandisk SSDs for NCQ

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Date:   Mon, 28 May 2018 11:59:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tejun Heo <tj@...nel.org>,
        Dave Jones <davej@...emonkey.org.uk>
Subject: [PATCH 4.4 008/268] libata: Blacklist some Sandisk SSDs for NCQ

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tejun Heo <tj@...nel.org>

commit 322579dcc865b94b47345ad1b6002ad167f85405 upstream.

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@...nel.org>
Reported-by: Dave Jones <davej@...emonkey.org.uk>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/ata/libata-core.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4187,6 +4187,10 @@ static const struct ata_blacklist_entry
 	/* 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 },