LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   Slackware (https://www.linuxquestions.org/questions/slackware-14/)
-   -   EXT4-fs error on Slackware-current (https://www.linuxquestions.org/questions/slackware-14/ext4-fs-error-on-slackware-current-4175457098/)

ppencho 04-06-2013 04:23 AM

EXT4-fs error on Slackware-current
 
3 Attachment(s)
(Full slackware-current with the latest updates)

Last night I tried to log off from KDE in the usual way (right click and Leave... from the menu). But the menu didn't appear and KDE as though freezed with mouse still moving normally. I switched to console (Ctrl-Alt-F1/F2/F3) and you can see the result in the attached JPGs - lots of EXT4-fs errors.

After some fight to close KDE from inside it I killed it from the console (Ctrl-C) and tried to shutdown the PC by short press of the power button (that's how I stop it each time). It didn't work saying 'shutdown' command not found. So I stopped it in the brutal way by holding the power button. On the next start it repaired some issues:
Code:

Apr  5 23:06:47 homepc kernel: [    3.690617] Freeing unused kernel memory: 720k freed
Apr  5 23:06:47 homepc kernel: [    3.694686] Freeing unused kernel memory: 260k freed
Apr  5 23:06:47 homepc kernel: <30>[    3.707219] udevd[987]: starting version 182
Apr  5 23:06:47 homepc kernel: [    5.316951] EXT4-fs (sda1): INFO: recovery required on readonly filesystem
Apr  5 23:06:47 homepc kernel: [    5.320118] EXT4-fs (sda1): write access will be enabled during recovery
Apr  5 23:06:47 homepc kernel: [    6.999563] EXT4-fs (sda1): orphan cleanup on readonly fs
Apr  5 23:06:47 homepc kernel: [    7.002785] EXT4-fs (sda1): 5 orphan inodes deleted
Apr  5 23:06:47 homepc kernel: [    7.005912] EXT4-fs (sda1): recovery complete
Apr  5 23:06:47 homepc kernel: [    7.065606] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
Apr  5 23:06:47 homepc kernel: [    7.698749] loop: module loaded
Apr  5 23:06:47 homepc kernel: <30>[    7.839369] udevd[1151]: starting version 182
Apr  5 23:06:47 homepc kernel: [    8.459296] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver

Now the system works fine. I tested the partitions (sda1 - root, sda2 - home, sda3 - data) with fsck.ext4 (run from another Slackware installed on different partition) and the hard disk with smartctl tool, it shows no errors:
Code:

smartctl 5.43 2012-06-30 r3573 [x86_64-linux-3.8.4] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:    Western Digital Caviar Black
Device Model:    WDC WD7501AALS-00J7B1
Serial Number:    WD-WMAU00104838
LU WWN Device Id: 5 0014ee 056b4c50d
Firmware Version: 05.00K05
User Capacity:    750,156,374,016 bytes [750 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:  8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Sat Apr  6 10:25:09 2013 EEST
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:  (0x84)        Offline data collection activity
                                        was suspended by an interrupting command from host.
                                        Auto Offline Data Collection: Enabled.
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:                (15960) seconds.
Offline data collection
capabilities:                          (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        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:          ( 185) minutes.
Conveyance self-test routine
recommended polling time:          (  5) minutes.
SCT capabilities:                (0x303f)        SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

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  230  228  021    Pre-fail  Always      -      8458
  4 Start_Stop_Count        0x0032  099  099  000    Old_age  Always      -      1174
  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  087  087  000    Old_age  Always      -      9546
 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  099  099  000    Old_age  Always      -      1166
192 Power-Off_Retract_Count 0x0032  200  200  000    Old_age  Always      -      141
193 Load_Cycle_Count        0x0032  200  200  000    Old_age  Always      -      1174
194 Temperature_Celsius    0x0022  098  087  000    Old_age  Always      -      52
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  200  200  000    Old_age  Offline      -      0
199 UDMA_CRC_Error_Count    0x0032  200  200  000    Old_age  Always      -      0
200 Multi_Zone_Error_Rate  0x0008  200  200  000    Old_age  Offline      -      0

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%      9546        -
# 2  Short offline      Completed without error      00%      9543        -
# 3  Short offline      Completed without error      00%      9543        -

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.

Could you propose some additional hard disk tests just to be sure that it is in good condition? The disk is a little bit noisy at times.
.

GazL 04-06-2013 05:01 AM

While you're getting a lot of fs errors there, I didn't see anything in the way of I/O errors reported from the underlying block device containing the fs. It's possible that the disk is not at fault here and you hit some weird kernel filesystem/vfs-cache bug. I did notice there were a number of ext4 related fixes that went into linux-3.8.5

Not saying this is what happened, just raising it as a possibility.

ppencho 04-06-2013 06:40 AM

Thanks, GazL. Is there a log file written at the time the problem happened? (containing the messages from the first attachment)

Because I just remembered that minute or two before the freeze I touched the disk bottom side to feel how hot is it and if there are any vibrations. I did it because of the strange noise (with not visible disk LED activity) that I mentioned in the first post, it occurs frequently in the time. It is not the first time I touch the disk (yes, I should not do that!), even now I didn't resist the temptation to check it again in a try to reproduce the EXT4-fs error (no success).

So the above could be connected or not to my issue, but is is good to be known.

GazL 04-06-2013 08:13 AM

system messages normally go to /var/log/messages, but if the disk was playing up at the time then there's a chance they didn't get written.

I can't really offer anything on the noise, or impact of whatever actions you were taking at the time, as only you will know what was going on.
Having said that, noise from a drive isn't generally a good sign. If you don't already have backups of your important data, now would be a good time to start taking them.

ppencho 04-06-2013 09:05 AM

Quote:

Originally Posted by GazL (Post 4926253)
...but if the disk was playing up at the time then there's a chance they didn't get written.

Damn true :)


All times are GMT -5. The time now is 01:40 PM.