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souvik1997
2
Guru-in-Training (Posts: 2867)

Possible hard drive failure?
25 Nov 2012 10:46:12 am

Whenever I move my laptop, I see this in the kernel log:

Code:

[55110.083839] EXT4-fs (sda5): re-mounted. Opts: commit=600


[55196.552278] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.


[55196.590533] ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0xe frozen


[55196.590597] ata2.00: irq_stat 0x00400000, PHY RDY changed


[55196.590643] ata2: SError: { PHYRdyChg CommWake }


[55196.590682] sr 1:0:0:0: CDB: 


[55196.590684] cdb[0]=0x4a: 4a 01 00 00 10 00 00 00 08 00


[55196.590697] ata2.00: cmd a0/00:00:00:08:00/00:00:00:00:00/a0 tag 0 pio 16392 in


         res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)


[55196.590807] ata2.00: status: { DRDY }


[55196.590843] ata2: hard resetting link


[55196.629499] ehci_hcd 0000:00:1a.0: setting latency timer to 64


[55196.779604] ehci_hcd 0000:00:1d.0: setting latency timer to 64


[55197.220569] EXT4-fs (sda5): re-mounted. Opts: commit=0


[55197.315831] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)


[55197.321562] ata2.00: configured for UDMA/100


[55197.335825] ata2: EH complete


[55228.409425] EXT4-fs (sda5): re-mounted. Opts: commit=600


[55249.207655] NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter.


[55249.284287] ehci_hcd 0000:00:1a.0: setting latency timer to 64


[55249.431074] ehci_hcd 0000:00:1d.0: setting latency timer to 64


[55249.805627] EXT4-fs (sda5): re-mounted. Opts: commit=0


[55250.754997] ata2.00: exception Emask 0x10 SAct 0x0 SErr 0x50000 action 0xe frozen


[55250.758143] ata2.00: irq_stat 0x00400000, PHY RDY changed


[55250.761630] ata2: SError: { PHYRdyChg CommWake }


[55250.764687] sr 1:0:0:0: CDB: 


[55250.764694] cdb[0]=0x4a: 4a 01 00 00 10 00 00 00 08 00


[55250.764727] ata2.00: cmd a0/00:00:00:08:00/00:00:00:00:00/a0 tag 0 pio 16392 in


         res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x10 (ATA bus error)


[55250.771586] ata2.00: status: { DRDY }


[55250.772850] ata2: hard resetting link


[55251.496678] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)


[55251.502470] ata2.00: configured for UDMA/100


[55251.516712] ata2: EH complete

I ran the short SMART self-test, and it completed without any errors, but when I run `smartctl -d sat --all /dev/sda`, I get this:

Code:

SMART Attributes Data Structure revision number: 16


Vendor Specific SMART Attributes with Thresholds:


ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE


  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0


  3 Spin_Up_Time            0x0027   189   172   021    Pre-fail  Always       -       1508


  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       944


  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0


  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0


  9 Power_On_Hours          0x0032   086   086   000    Old_age   Always       -       10289


 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0


 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0


 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       452


191 G-Sense_Error_Rate      0x0032   001   001   000    Old_age   Always       -       39028


192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       103


193 Load_Cycle_Count        0x0032   151   151   000    Old_age   Always       -       147164


194 Temperature_Celsius     0x0022   106   093   000    Old_age   Always       -       41


196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0


197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0


198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0


199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0


200 Multi_Zone_Error_Rate   0x0008   100   253   000    Old_age   Offline      -       0


240 Head_Flying_Hours       0x0032   087   087   000    Old_age   Always       -       9567


241 Total_LBAs_Written      0x0032   200   200   000    Old_age   Always       -       11306333918


242 Total_LBAs_Read         0x0032   200   200   000    Old_age   Always       -       19690445151


254 Free_Fall_Sensor        0x0032   200   200   000    Old_age   Always       -       0

Is this a cause for concern? I've been taking regular backups, but do I need to get a new drive?

Travis
Power User (Posts: 428)

25 Nov 2012 01:36:12 pm

The “G-Sense_Error_Rate” attribute looks extremely close to the drive's reported failure threshold. This is related to the drive's protecting itself from bumps and shock. Since you say it happens when you move the laptop, this seems a likely cause. I'd keep an eye on it. It's an “Old_age” attribute, which means it's not necessarily a immediate failure when it reaches the threshold, but it does looks like a potential problem.

That said, SMART test data isn't always reliable, so it's a good idea to take it with a grain of salt and always back up your stuff no matter what, as you say you do. Smile

souvik1997
2
Guru-in-Training (Posts: 2867)

25 Nov 2012 06:21:16 pm

Thanks for the explanation, Travis. Smile

Kllrnohj
☢ PH34R |\/|3 (Posts: 8196)
$☢ PH34R |\/|3$

25 Nov 2012 08:54:06 pm

Don't move your laptop while it's powered on, easy. Or get an SSD.

TheStorm
NOU! (Posts: 2552)

27 Nov 2012 10:53:35 pm

Or get a laptop with a g-force sensor that locks the read head when it detects the laptop is moving.

"Always code as if the person who will maintain your code is a maniac serial killer that knows where you live" -Unknown

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"Have a nice day, or not, the choice is yours." Tom Steiner

<Michael_V> or create a Borg collective and call it The 83+
<Michael_V> Lower your slide cases and prepare to be silent linked. Memory clears are futile.

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Quote

Kllrnohj
☢ PH34R |\/|3 (Posts: 8196)
$☢ PH34R |\/|3$

27 Nov 2012 11:49:45 pm

TheStorm wrote:

Or get a laptop with a g-force sensor that locks the read head when it detects the laptop is moving.

That's what he currently has, and that's the "error" he is asking about.

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