failed command: WRITE FPDMA QUEUED / ATA bus error

[Davide Aguiari]

System: HP Omen 15-5003nl
OS: Linux Elementary Freya 0.3.2 64bit (and Windows 10 64bit)
SSD: SanDisk A110 SD6PP4M-256GB-1006
SSD Firmware: A200906
Kernel: 3.19.0-58-generic and 4.4.6-040406-generic and others (see after)

I recently upgraded my SSD firmware and it fixed a serious ahcpi freeze bug on Windows partition (http://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/HP-Omen-system-hangs/td-p/4990788). Sometimes the system freezed some seconds with Linux OS too, so I hoped to resolve all problems with this new firmware.
On the contrary, now my dmesg is full of:

5/4/2016 00:40:26 Dago kernel [ 322.113563] ata5.00: exception Emask 0x10 SAct 0x20000000 SErr 0x50000 action 0xe frozen
5/4/2016 00:40:26 Dago kernel [ 322.113567] ata5.00: irq_stat 0x00400000, PHY RDY changed
5/4/2016 00:40:26 Dago kernel [ 322.113569] ata5: SError: { PHYRdyChg CommWake }
5/4/2016 00:40:26 Dago kernel [ 322.113572] ata5.00: failed command: WRITE FPDMA QUEUED
5/4/2016 00:40:26 Dago kernel [ 322.113575] ata5.00: cmd 61/48:e8:00:3e:7e/01:00:16:00:00/40 tag 29 ncq 167936 out
5/4/2016 00:40:26 Dago kernel [ 322.113575] res 40/00:e4:00:f7:32/00:00:19:00:00/40 Emask 0x10 (ATA bus error)
5/4/2016 00:40:26 Dago kernel [ 322.113577] ata5.00: status: { DRDY }
5/4/2016 00:40:26 Dago kernel [ 322.113580] ata5: hard resetting link
5/4/2016 00:40:27 Dago kernel [ 322.838234] ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
5/4/2016 00:40:27 Dago kernel [ 322.839183] ata5.00: configured for UDMA/33
5/4/2016 00:40:27 Dago kernel [ 322.839247] ata5: EH complete

209 errors in 20minutes.
I did a system ssd check and no errors are found. I put my smartctl on attachment.

Speed test:
sudo hdparm -Tt /dev/sda

/dev/sda:
 Timing cached reads: 19958 MB in 2.00 seconds = 9990.47 MB/sec
 Timing buffered disk reads: 1782 MB in 3.00 seconds = 593.55 MB/sec

Dmesg errors show only with AC power plug plugged in :/
I though It was a kernel bug related, but I tried Ubuntu 16.04 and the dmesg is clean. No errors.
I installed the SAME kernel on Elementary (4.4.0-21) but the errors were still there.

I tried several kernels (4.0.5, 4.0.9, 4.1.0, 4.4, 4.5) without success.

I tried to boot with libata.force=noncq, without success. In this case, the error changed to
[ ] ata5.00: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0xe frozen [ ... ]
[ ] ata5.00: irq_stat 0x00400000, PHY RDY changed
[ ] ata5.00: failed command: WRITE DMA EXT
[ ] ata5.00: cmd 35/00:90:f0:ec:b2/00:00:17:00:00/e0 tag 26 dma 73728 out
[ ] res 50/00:00:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)

[Davide Aguiari (gorghino)]

I installed Loki beta today in a different partition.
The errors are missing. I'm starting to think this bug is correlated to a sector corrupted.

[Davide Aguiari (gorghino)]

SOLUTION: Apparently the new SSD firmware doesn't work well with TLP (http://linrunner.de/en/tlp/docs/tlp-linux-advanced-power-management.html) package.

Open /etc/default/tlp and commented

#SATA_LINKPWR_ON_AC=max_performance
#SATA_LINKPWR_ON_BAT=min_power

solved the problem.

Maybe you (Elementary devs) should warn people when they install TLP package.

[Zisu Andrei (matzipan)]

Hello,

I am glad to hear you found a solution.

I'm afraid there isn't much we can do about either the bug - since we don't manage or maintain tlp - or warning people about this.

Consider opening a bug request upstream: https://github.com/linrunner/TLP/issues