Possible issues with SSD SATA3 drive

Question

While investigating the issue with my SATA3 SSD drive being recognized as SATA2 (for some reason had to change SATA ports to fix it) I noticed the following messages when I run:

$ dmesg | grep ata3.00
[    0.980592] ata3.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[    0.980594] ata3.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[    0.980596] ata3.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[    0.980712] ata3.00: supports DRM functions and may not be fully accessible
[    0.980795] ata3.00: failed to get NCQ Send/Recv Log Emask 0x1
[    0.980797] ata3.00: ATA-9: SAMSUNG MZ7PD128HAFV-000H7, XXXXXXX, max UDMA/133
[    0.980798] ata3.00: 250069680 sectors, multi 1: LBA48 NCQ (depth 31/32), AA
[    0.981070] ata3.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[    0.981072] ata3.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[    0.981073] ata3.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[    0.981174] ata3.00: supports DRM functions and may not be fully accessible
[    0.981225] ata3.00: failed to get NCQ Send/Recv Log Emask 0x1
[    0.981227] ata3.00: configured for UDMA/133

My architecture:

$ uname
3.13.8-1-ARCH

My concern is the line where it says that system failed to get NCQ Send/Recv Log Emask 0x1

Is this something I need to be concerned with?

My system is Asrock Extreme4 mb with SAMSUNG MZ7PD128HAFV-000H7 SSD SATA3 drive on Arch Linux OS.

Update 1

I run SysLinux on my machine and below is the output of the same command (no failure messages):

root@sysresccd /root % dmesg | grep ata3
[    1.166153] ata3: SATA max UDMA/133 abar m2048@0xf0336000 port 0xf0336200 irq 42
[    1.470696] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    1.471504] ata3.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[    1.471507] ata3.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[    1.471710] ata3.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[    1.472032] ata3.00: supports DRM functions and may not be fully accessible
[    1.472166] ata3.00: ATA-9: SAMSUNG MZ7PD128HAFV-000H7, SN, max UDMA/133
[    1.472359] ata3.00: 250069680 sectors, multi 1: LBA48 NCQ (depth 31/32), AA
[    1.472760] ata3.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[    1.472761] ata3.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out
[    1.472762] ata3.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION OVERLAY) filtered out
[    1.472920] ata3.00: supports DRM functions and may not be fully accessible
[    1.472946] ata3.00: configured for UDMA/133

I compared SATA power profiles on both OSes under /sys/class/scsi_host/host(0-7) and they set to max_performance.

What else can I check on both OSes and configure Arch so that this failure message would go away?

Update 2 Looks like this issue only appears in newer kernels...

I tried with Ubuntu Live CD 12.04, 13.10, and 14.04: I was able to see this issue in 14.04 but not in other 2 versions.

I then run diff for the kernel config files but I can't figure out the exact change that affects me...

Ubuntu 13.10 kernel config file

Ubuntu 14.04 kernel config file

Answer 1

这是三星 SSD 中的一个已知错误：驱动器无法正确执行排队修剪命令。

然而，Ubuntu（可能还有大多数其他 Linux 发行版）现在将修剪作为 cronjob 来实现以提高性能，因此这没有任何实际问题。

有关更多详细信息，请参阅有关此的内核错误： https://bugzilla.kernel.org/show_bug.cgi ?id=72341

该错误没有出现在旧内核中的原因是这些内核不会尝试使用驱动器的错误功能，因此它们永远不会看到该错误。即使较新的内核（4.0 及更高版本）也知道驱动器存在此错误，因此将来不会为驱动器显示该错误。