Comment 61 for bug 1259829

@Allard, OK, that's good to know that a message shows up in dmseg saying the queued trim is disabled. I don't have that message for my MX100, so it seems trim isn't disabled in the kernel for the MX100:

$ dmesg | grep ata1
[ 1.995490] ata1: SATA max UDMA/133 abar m2048@0xf2627000 port 0xf2627100 irq 54
[ 2.313452] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 2.314803] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 2.314811] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 2.314976] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 2.314978] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 2.315360] ata1.00: supports DRM functions and may not be fully accessible
[ 2.319343] ata1.00: ATA-9: Crucial_CT512MX100SSD1, MU01, max UDMA/133
[ 2.319349] ata1.00: 1000215216 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[ 2.325081] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 2.325089] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 2.325152] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 2.325157] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 2.325524] ata1.00: supports DRM functions and may not be fully accessible
[ 2.333873] ata1.00: configured for UDMA/133
[ 35.495513] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 35.496830] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 35.496832] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 35.496875] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 35.496876] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 35.497154] ata1.00: supports DRM functions and may not be fully accessible
[ 35.506398] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 35.506399] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 35.506439] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 35.506441] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 35.506712] ata1.00: supports DRM functions and may not be fully accessible
[ 35.514807] ata1.00: configured for UDMA/133
[ 72.563250] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 72.564536] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 72.564538] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 72.564596] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 72.564597] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 72.564868] ata1.00: supports DRM functions and may not be fully accessible
[ 72.574059] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 72.574061] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 72.574108] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 72.574110] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 72.574367] ata1.00: supports DRM functions and may not be fully accessible
[ 72.582480] ata1.00: configured for UDMA/133
[ 88.186608] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 88.187916] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 88.187918] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 88.187977] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 88.187978] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 88.188274] ata1.00: supports DRM functions and may not be fully accessible
[ 88.197508] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 88.197509] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 88.197570] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 88.197572] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 88.197847] ata1.00: supports DRM functions and may not be fully accessible
[ 88.205956] ata1.00: configured for UDMA/133
[ 873.063550] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 873.064874] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 873.064876] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 873.064924] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 873.064925] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 873.065288] ata1.00: supports DRM functions and may not be fully accessible
[ 873.074596] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 873.074598] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 873.074642] ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 (SET FEATURES) rejected by device (Stat=0x51 Err=0x04)
[ 873.074644] ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
[ 873.074930] ata1.00: supports DRM functions and may not be fully accessible
[ 873.083057] ata1.00: configured for UDMA/133