Despite the unsubstantiated claim from Samsung that "the improved queued trim enhances Linux compatibility" this does not appear to be true, even on Intel SATA controllers: Bug 203475 - Samsung 860 EVO queued TRIM issues https://bugzilla.kernel.org/show_bug.cgi?id=203475 Disable queued TRIM for all Samsung 860 SSDs. Only the EVO has been reported as having this problem, but the original justification for enabling appears to be based on marketing material with no explanation of what has been changed to make the 860 work properly when the earlier 840 and 850 both have the same issue. Signed-off-by: Simon Arlott <simon@xxxxxxxxxxx> Cc: Park Ju Hyung <qkrwngud825@xxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Fixes: ca6bfcb2f6d9 ("libata: Enable queued TRIM for Samsung SSD 860") --- drivers/ata/libata-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index b1cd4d97bc2a..02e861aac5ec 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -3951,6 +3951,8 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { ATA_HORKAGE_ZERO_AFTER_TRIM, }, { "Samsung SSD 850*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, + { "Samsung SSD 860*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | + ATA_HORKAGE_ZERO_AFTER_TRIM, }, { "FCCT*M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, -- 2.17.1 -- Simon Arlott
