SSD error "failed command: READ DMA" (S.M.A.R.T. ok)

[Pete77]

Hello,
I have an Samsung SSD 830 which reports errors when attaching to the system:

Code: Select all

[ 3723.017906] ata4.00: configured for UDMA/133
[ 3723.017923] ata4: EH complete
[ 3723.048574] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
[ 3723.048581] ata4.00: irq_stat 0x40000001
[ 3723.048586] ata4.00: failed command: READ DMA
[ 3723.048597] ata4.00: cmd c8/00:08:00:c2:e7/00:00:00:00:00/ee tag 3 dma 4096 in
                        res 51/04:08:00:c2:e7/00:00:00:00:00/ee Emask 0x1 (device error)
[ 3723.048602] ata4.00: status: { DRDY ERR }
[ 3723.048606] ata4.00: error: { ABRT }

The first guess was that the SSD has errros, but smart values seem to be ok:

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sudo smartctl -a /dev/sda 
smartctl 7.1 2019-12-30 r5022 [x86_64-linux-5.4.0-72-generic] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Samsung based SSDs
Device Model:     SAMSUNG SSD 830 Series
Serial Number:    S0WJNYABC03229
LU WWN Device Id: 5 002538 043584d30
Firmware Version: CXM03B1Q
User Capacity:    128.035.676.160 bytes [128 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 T13/2015-D revision 2
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Wed May  5 17:58:43 2021 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x02)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(  540) seconds.
Offline data collection
capabilities: 			 (0x5b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					No Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   2) minutes.
Extended self-test routine
recommended polling time: 	 (   9) minutes.

SMART Attributes Data Structure revision number: 1
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       4267
 12 Power_Cycle_Count       0x0032   097   097   000    Old_age   Always       -       2379
177 Wear_Leveling_Count     0x0013   097   097   000    Pre-fail  Always       -       84
179 Used_Rsvd_Blk_Cnt_Tot   0x0013   100   100   010    Pre-fail  Always       -       0
181 Program_Fail_Cnt_Total  0x0032   100   100   010    Old_age   Always       -       0
182 Erase_Fail_Count_Total  0x0032   100   100   010    Old_age   Always       -       0
183 Runtime_Bad_Block       0x0013   100   100   010    Pre-fail  Always       -       0
187 Uncorrectable_Error_Cnt 0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0032   072   054   000    Old_age   Always       -       28
195 ECC_Error_Rate          0x001a   200   200   000    Old_age   Always       -       0
199 CRC_Error_Count         0x003e   253   253   000    Old_age   Always       -       0
235 POR_Recovery_Count      0x0012   099   099   000    Old_age   Always       -       197
241 Total_LBAs_Written      0x0032   099   099   000    Old_age   Always       -       12368831456

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%      4265         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Any ideas what I can do next?

[rene]

Given that I didn't quickly find information about firmware versions for the 830 I earlier thought I'd leave this for someone else but given that there is no reply up to now: have you checked to see if you're on the newest firmware? Samsung seems to for some drives offer e.g. downloadable ISOs with the update software but normally it is/was a matter of installing the newest version of Samsung's Magician software on a Windows system. I'm almost positive that "Magician" will have by now gone through 16 rounds of senseless renaming and/or dumping of support for older hardware --- but I'm not going to check so I hope you manage to figure those bits out

[Pete77]

Thank for your suggestion. My current firmware is CXM03B1Q, which is also the newest one.

[rene]

OK. Seemed like the kind of thing a firmware update would help with. Don't know then.