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Message-Id: <20180426203221.2683-1-hdegoede@redhat.com> Date: Thu, 26 Apr 2018 22:32:21 +0200 From: Hans de Goede <hdegoede@...hat.com> To: Tejun Heo <tj@...nel.org> Cc: Hans de Goede <hdegoede@...hat.com>, linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org, stable@...r.kernel.org, "Richard W . M . Jones" <rjones@...hat.com> Subject: [PATCH] libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs Richard Jones has reported that using med_power_with_dipm on a T450s with a Sandisk SD7UB3Q256G1001 SSD (firmware version X2180501) is causing the machine to hang. Switching the LPM to max_performance fixes this, so it seems that this Sandisk SSD does not handle LPM well. Note in the past there have been bug-reports about the following Sandisk models not working with min_power, so we may need to extend the quirk list in the future: name - firmware Sandisk SD6SB2M512G1022I - X210400 Sandisk SD6PP4M-256G-1006 - A200906 Cc: stable@...r.kernel.org Cc: Richard W.M. Jones <rjones@...hat.com> Reported-and-tested-by: Richard W.M. Jones <rjones@...hat.com> Signed-off-by: Hans de Goede <hdegoede@...hat.com> --- drivers/ata/libata-core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 6e400ff2b5db..68596bd4cf06 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4552,6 +4552,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { /* This specific Samsung model/firmware-rev does not handle LPM well */ { "SAMSUNG MZMPC128HBFU-000MV", "CXM14M1Q", ATA_HORKAGE_NOLPM, }, + /* Sandisk devices which are known to not handle LPM well */ + { "SanDisk SD7UB3Q*G1001", NULL, ATA_HORKAGE_NOLPM, }, + /* devices that don't properly handle queued TRIM commands */ { "Micron_M500_*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, -- 2.17.0
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