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On 2013-03-08T03:40:22+00:00 Phillip Susi wrote:

I get an I/O error trying to read health status:

psusi@faldara:~$ sudo skdump /dev/sdc
Device: sat16:/dev/sdc
Type: 16 Byte SCSI ATA SAT Passthru
Size: 35304 MiB
Model: [WDC WD360GD-00FNA0]
Serial: [WD-WMAH91337618]
Firmware: [35.06K35]
SMART Available: yes
Quirks:
Awake: yes
SMART Disk Health Good: Input/output error
Off-line Data Collection Status: [Off-line data collection activity was 
completed without error.]
Total Time To Complete Off-Line Data Collection: 1572 s
Self-Test Execution Status: [The previous self-test routine completed without 
error or no self-test has ever been run.]
Percent Self-Test Remaining: 0%
Conveyance Self-Test Available: yes
Short/Extended Self-Test Available: yes
Start Self-Test Available: yes
Abort Self-Test Available: yes
Short Self-Test Polling Time: 2 min
Extended Self-Test Polling Time: 28 min
Conveyance Self-Test Polling Time: 5 min
Bad Sectors: 0 sectors
Powered On: 1.7 years
Power Cycles: 5260
Average Powered On Per Power Cycle: 2.8 h
Temperature: 35.0 C
Attribute Parsing Verification: Good
Overall Status: Input/output error
ID# Name                        Value Worst Thres Pretty      Raw            
Type    Updates Good Good/Past
  1 raw-read-error-rate         200   200    51   0           0x000000000000 
prefail online  yes  yes 
  3 spin-up-time                 88    84    21   2.1 s       0x340800000000 
prefail online  yes  yes 
  4 start-stop-count             95    95    40   5571        0xc31500000000 
old-age online  yes  yes 
  5 reallocated-sector-count    200   200   140   0 sectors   0x000000000000 
prefail online  yes  yes 
  7 seek-error-rate             200   200    51   0           0x000000000000 
prefail online  yes  yes 
  9 power-on-hours               80    80     0   1.7 years   0x833900000000 
old-age online  n/a  n/a 
 10 spin-retry-count            100   100    51   0           0x000000000000 
prefail online  yes  yes 
 11 calibration-retry-count     100   100    51   0           0x000000000000 
prefail online  yes  yes 
 12 power-cycle-count            95    95     0   5260        0x8c1400000000 
old-age online  n/a  n/a 
194 temperature-celsius-2       108   253     0   35.0 C      0x230000000000 
old-age online  n/a  n/a 
196 reallocated-event-count     200   200     0   0           0x000000000000 
old-age online  n/a  n/a 
197 current-pending-sector      200   200     0   0 sectors   0x000000000000 
old-age online  n/a  n/a 
198 offline-uncorrectable       200   200     0   0 sectors   0x000000000000 
old-age online  n/a  n/a 
199 udma-crc-error-count        200   253     0   0           0x000000000000 
old-age online  n/a  n/a 
200 multi-zone-error-rate       200   125    51   0           0x000000000000 
prefail offline yes  yes 


I traced it down to sk_disk_smart_status here:

        /* SAT/USB bridges truncate packets, so we only check for 4F,
         * not for 2C on those */
        if ((d->type == SK_DISK_TYPE_ATA_PASSTHROUGH_12 || cmd[3] == 
htons(0x00C2U)) &&
            cmd[4] == htons(0x4F00U))
                *good = TRUE;
        else if ((d->type == SK_DISK_TYPE_ATA_PASSTHROUGH_12 || cmd[3] == 
htons(0x002CU)) &&
                 cmd[4] == htons(0xF400U))
                *good = FALSE;
        else {
>               errno = EIO;
                return -1;
        }

(gdb) print d->type
$5 = SK_DISK_TYPE_ATA_PASSTHROUGH_16
(gdb) print /x cmd
$4 = {0x0, 0x0, 0x0, 0xc200, 0x454f, 0x5000}

Reply at:
https://bugs.launchpad.net/ubuntu/+source/udisks2/+bug/1143495/comments/2


** Changed in: libatasmart
       Status: Unknown => Confirmed

** Changed in: libatasmart
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1143495

Title:
  udisks reporting input/output error that seems to be nonsense

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