(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:
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: 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: 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:
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.
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
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
Offline surface scan supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
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.