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    System crash

    Using kubuntu 13.10 fresh install + updates this morning.
    PROBLEM: Am currently experiencing severe system crash when using a spreadsheet. System just freezes. On reboot, can use & edit other files with no problem, except when I just ran Kbackup.
    It completed the backup, problem but the following errors were reported:

    Code:
    File '/dev/block/1:0' is not readable. Skipping.
    File '/dev/block/1:1' is not readable. Skipping.
    File '/dev/block/1:10' is not readable. Skipping.
    File '/dev/block/1:11' is not readable. Skipping.
    File '/dev/block/1:12' is not readable. Skipping.
    File '/dev/block/1:13' is not readable. Skipping.
    File '/dev/block/1:14' is not readable. Skipping.
    File '/dev/block/1:15' is not readable. Skipping.
    File '/dev/block/1:2' is not readable. Skipping.
    File '/dev/block/1:3' is not readable. Skipping.
    File '/dev/block/1:4' is not readable. Skipping.
    File '/dev/block/1:5' is not readable. Skipping.
    File '/dev/block/1:6' is not readable. Skipping.
    File '/dev/block/1:7' is not readable. Skipping.
    File '/dev/block/1:8' is not readable. Skipping.
    File '/dev/block/1:9' is not readable. Skipping.
    File '/dev/block/7:0' is not readable. Skipping.
    File '/dev/block/7:1' is not readable. Skipping.
    File '/dev/block/7:2' is not readable. Skipping.
    File '/dev/block/7:3' is not readable. Skipping.
    File '/dev/block/7:4' is not readable. Skipping.
    File '/dev/block/7:5' is not readable. Skipping.
    File '/dev/block/7:6' is not readable. Skipping.
    File '/dev/block/7:7' is not readable. Skipping.
    File '/dev/block/8:0' is not readable. Skipping.
    File '/dev/block/8:1' is not readable. Skipping.
    File '/dev/block/8:16' is not readable. Skipping.
    File '/dev/block/8:17' is not readable. Skipping.
    File '/dev/block/8:18' is not readable. Skipping.
    File '/dev/block/8:19' is not readable. Skipping.
    File '/dev/block/8:21' is not readable. Skipping.
    File '/dev/block/8:32' is not readable. Skipping.
    File '/dev/block/8:33' is not readable. Skipping.
    File '/dev/block/8:34' is not readable. Skipping.
    File '/dev/block/8:35' is not readable. Skipping.
    File '/dev/block/8:37' is not readable. Skipping.
    File '/dev/block/8:48' is not readable. Skipping.
    File '/dev/char/108:0' is not readable. Skipping.
    File '/dev/char/10:1' is not readable. Skipping.
    File '/dev/char/10:184' is not readable. Skipping.
    File '/dev/char/10:223' is not readable. Skipping.
    File '/dev/char/10:227' is not readable. Skipping.
    File '/dev/char/10:228' is not readable. Skipping.
    File '/dev/char/10:231' is not readable. Skipping.
    File '/dev/char/10:236' is not readable. Skipping.
    File '/dev/char/10:237' is not readable. Skipping.
    File '/dev/char/10:58' is not readable. Skipping.
    File '/dev/char/10:59' is not readable. Skipping.
    File '/dev/char/10:60' is not readable. Skipping.
    File '/dev/char/10:61' is not readable. Skipping.
    File '/dev/char/10:63' is not readable. Skipping.
    File '/dev/char/13:32' is not readable. Skipping.
    File '/dev/char/13:63' is not readable. Skipping.
    File '/dev/char/13:64' is not readable. Skipping.
    File '/dev/char/13:65' is not readable. Skipping.
    File '/dev/char/13:66' is not readable. Skipping.
    File '/dev/char/13:67' is not readable. Skipping.
    File '/dev/char/13:68' is not readable. Skipping.
    File '/dev/char/13:69' is not readable. Skipping.
    File '/dev/char/13:70' is not readable. Skipping.
    File '/dev/char/13:71' is not readable. Skipping.
    File '/dev/char/13:72' is not readable. Skipping.
    File '/dev/char/13:73' is not readable. Skipping.
    File '/dev/char/13:74' is not readable. Skipping.
    File '/dev/char/13:75' is not readable. Skipping.
    File '/dev/char/13:76' is not readable. Skipping.
    File '/dev/char/13:77' is not readable. Skipping.
    File '/dev/char/13:78' is not readable. Skipping.
    File '/dev/char/13:79' is not readable. Skipping.
    File '/dev/char/13:80' is not readable. Skipping.
    File '/dev/char/180:0' is not readable. Skipping.
    File '/dev/char/180:1' is not readable. Skipping.
    File '/dev/char/1:1' is not readable. Skipping.
    File '/dev/char/1:4' is not readable. Skipping.
    File '/dev/char/21:0' is not readable. Skipping.
    File '/dev/char/21:1' is not readable. Skipping.
    File '/dev/char/21:3' is not readable. Skipping.
    File '/dev/char/21:4' is not readable. Skipping.
    File '/dev/char/251:0' is not readable. Skipping.
    File '/dev/char/251:1' is not readable. Skipping.
    File '/dev/char/251:2' is not readable. Skipping.
    File '/dev/char/252:0' is not readable. Skipping.
    File '/dev/char/252:1' is not readable. Skipping.
    File '/dev/char/252:2' is not readable. Skipping.
    File '/dev/char/252:3' is not readable. Skipping.
    File '/dev/char/252:4' is not readable. Skipping.
    File '/dev/char/254:0' is not readable. Skipping.
    File '/dev/char/4:0' is not readable. Skipping.
    File '/dev/char/4:1' is not readable. Skipping.
    File '/dev/char/4:10' is not readable. Skipping.
    File '/dev/char/4:11' is not readable. Skipping.
    File '/dev/char/4:12' is not readable. Skipping.
    File '/dev/char/4:13' is not readable. Skipping.
    File '/dev/char/4:14' is not readable. Skipping.
    File '/dev/char/4:15' is not readable. Skipping.
    File '/dev/char/4:16' is not readable. Skipping.
    File '/dev/char/4:17' is not readable. Skipping.
    File '/dev/char/4:18' is not readable. Skipping.
    File '/dev/char/4:19' is not readable. Skipping.
    File '/dev/char/4:2' is not readable. Skipping.
    File '/dev/char/4:20' is not readable. Skipping.
    File '/dev/char/4:21' is not readable. Skipping.
    File '/dev/char/4:22' is not readable. Skipping.
    File '/dev/char/4:23' is not readable. Skipping.
    File '/dev/char/4:24' is not readable. Skipping.
    File '/dev/char/4:25' is not readable. Skipping.
    File '/dev/char/4:26' is not readable. Skipping.
    File '/dev/char/4:27' is not readable. Skipping.
    File '/dev/char/4:28' is not readable. Skipping.
    File '/dev/char/4:29' is not readable. Skipping.
    File '/dev/char/4:3' is not readable. Skipping.
    File '/dev/char/4:30' is not readable. Skipping.
    File '/dev/char/4:31' is not readable. Skipping.
    File '/dev/char/4:32' is not readable. Skipping.
    File '/dev/char/4:33' is not readable. Skipping.
    File '/dev/char/4:34' is not readable. Skipping.
    File '/dev/char/4:35' is not readable. Skipping.
    File '/dev/char/4:36' is not readable. Skipping.
    File '/dev/char/4:37' is not readable. Skipping.
    File '/dev/char/4:38' is not readable. Skipping.
    File '/dev/char/4:39' is not readable. Skipping.
    File '/dev/char/4:4' is not readable. Skipping.
    File '/dev/char/4:40' is not readable. Skipping.
    File '/dev/char/4:41' is not readable. Skipping.
    File '/dev/char/4:42' is not readable. Skipping.
    File '/dev/char/4:43' is not readable. Skipping.
    File '/dev/char/4:44' is not readable. Skipping.
    File '/dev/char/4:45' is not readable. Skipping.
    File '/dev/char/4:46' is not readable. Skipping.
    File '/dev/char/4:47' is not readable. Skipping.
    File '/dev/char/4:48' is not readable. Skipping.
    File '/dev/char/4:49' is not readable. Skipping.
    File '/dev/char/4:5' is not readable. Skipping.
    File '/dev/char/4:50' is not readable. Skipping.
    File '/dev/char/4:51' is not readable. Skipping.
    File '/dev/char/4:52' is not readable. Skipping.
    File '/dev/char/4:53' is not readable. Skipping.
    File '/dev/char/4:54' is not readable. Skipping.
    File '/dev/char/4:55' is not readable. Skipping.
    File '/dev/char/4:56' is not readable. Skipping.
    File '/dev/char/4:57' is not readable. Skipping.
    File '/dev/char/4:58' is not readable. Skipping.
    File '/dev/char/4:59' is not readable. Skipping.
    File '/dev/char/4:6' is not readable. Skipping.
    File '/dev/char/4:60' is not readable. Skipping.
    File '/dev/char/4:61' is not readable. Skipping.
    File '/dev/char/4:62' is not readable. Skipping.
    File '/dev/char/4:63' is not readable. Skipping.
    File '/dev/char/4:64' is not readable. Skipping.
    File '/dev/char/4:65' is not readable. Skipping.
    File '/dev/char/4:66' is not readable. Skipping.
    File '/dev/char/4:67' is not readable. Skipping.
    File '/dev/char/4:68' is not readable. Skipping.
    File '/dev/char/4:69' is not readable. Skipping.
    File '/dev/char/4:7' is not readable. Skipping.
    File '/dev/char/4:70' is not readable. Skipping.
    File '/dev/char/4:71' is not readable. Skipping.
    File '/dev/char/4:72' is not readable. Skipping.
    File '/dev/char/4:73' is not readable. Skipping.
    File '/dev/char/4:74' is not readable. Skipping.
    File '/dev/char/4:75' is not readable. Skipping.
    File '/dev/char/4:76' is not readable. Skipping.
    File '/dev/char/4:77' is not readable. Skipping.
    File '/dev/char/4:78' is not readable. Skipping.
    File '/dev/char/4:79' is not readable. Skipping.
    File '/dev/char/4:8' is not readable. Skipping.
    File '/dev/char/4:80' is not readable. Skipping.
    File '/dev/char/4:81' is not readable. Skipping.
    File '/dev/char/4:82' is not readable. Skipping.
    File '/dev/char/4:83' is not readable. Skipping.
    File '/dev/char/4:84' is not readable. Skipping.
    File '/dev/char/4:85' is not readable. Skipping.
    File '/dev/char/4:86' is not readable. Skipping.
    File '/dev/char/4:87' is not readable. Skipping.
    File '/dev/char/4:88' is not readable. Skipping.
    File '/dev/char/4:89' is not readable. Skipping.
    File '/dev/char/4:9' is not readable. Skipping.
    File '/dev/char/4:90' is not readable. Skipping.
    File '/dev/char/4:91' is not readable. Skipping.
    File '/dev/char/4:92' is not readable. Skipping.
    File '/dev/char/4:93' is not readable. Skipping.
    File '/dev/char/4:94' is not readable. Skipping.
    File '/dev/char/4:95' is not readable. Skipping.
    File '/dev/char/5:1' is not readable. Skipping.
    File '/dev/char/5:3' is not readable. Skipping.
    File '/dev/char/6:0' is not readable. Skipping.
    File '/dev/char/7:0' is not readable. Skipping.
    File '/dev/char/7:1' is not readable. Skipping.
    File '/dev/char/7:128' is not readable. Skipping.
    File '/dev/char/7:129' is not readable. Skipping.
    File '/dev/char/7:130' is not readable. Skipping.
    File '/dev/char/7:131' is not readable. Skipping.
    File '/dev/char/7:132' is not readable. Skipping.
    File '/dev/char/7:133' is not readable. Skipping.
    File '/dev/char/7:134' is not readable. Skipping.
    File '/dev/char/7:135' is not readable. Skipping.
    File '/dev/char/7:2' is not readable. Skipping.
    File '/dev/char/7:3' is not readable. Skipping.
    File '/dev/char/7:4' is not readable. Skipping.
    File '/dev/char/7:5' is not readable. Skipping.
    File '/dev/char/7:6' is not readable. Skipping.
    File '/dev/char/7:7' is not readable. Skipping.
    File '/dev/char/99:0' is not readable. Skipping.
    File '/dev/core' is not readable. Skipping.
    File '/dev/disk/by-id/ata-ST3500418AS_6VM9YYMB' is not readable. Skipping.
    File '/dev/disk/by-id/ata-ST3500418AS_6VM9YYMB-part1' is not readable. Skipping.
    File '/dev/disk/by-id/ata-ST3500418AS_6VM9YYMB-part2' is not readable. Skipping.
    File '/dev/disk/by-id/ata-ST3500418AS_6VM9YYMB-part3' is not readable. Skipping.
    File '/dev/disk/by-id/ata-ST3500418AS_6VM9YYMB-part5' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD20EARS-00MVWB0_WD-WMAZA0495203' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD20EARS-00MVWB0_WD-WMAZA0495203-part1' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD20EARS-00MVWB0_WD-WMAZA0495203-part2' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD20EARS-00MVWB0_WD-WMAZA0495203-part3' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD20EARS-00MVWB0_WD-WMAZA0495203-part5' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD5003ABYX-01WERA1_WD-WMAYP3319783' is not readable. Skipping.
    File '/dev/disk/by-id/ata-WDC_WD5003ABYX-01WERA1_WD-WMAYP3319783-part1' is not readable. Skipping.
    File '/dev/disk/by-id/usb-HP_Officejet_Pro_85_CN0286R1MR-0:0' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x5000c5001f03eaf8' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x5000c5001f03eaf8-part1' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x5000c5001f03eaf8-part2' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x5000c5001f03eaf8-part3' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x5000c5001f03eaf8-part5' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0587ec66c' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0587ec66c-part1' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0ad0d6ee9' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0ad0d6ee9-part1' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0ad0d6ee9-part2' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0ad0d6ee9-part3' is not readable. Skipping.
    File '/dev/disk/by-id/wwn-0x50014ee0ad0d6ee9-part5' is not readable. Skipping.
    File '/dev/disk/by-label/Data\x20Storeage' is not readable. Skipping.
    File '/dev/disk/by-path/pci-0000:00:12.2-usb-0:1:1.3-scsi-0:0:0:0' is not readable. Skipping.
    File '/dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0' is not readable. Skipping.
    File '/dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0-part1' is not readable. Skipping.
    File '/dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0-part2' is not readable. Skipping.
    File '/dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0-part3' is not readable. Skipping.
    File '/dev/disk/by-path/pci-0000:00:12.2-usb-0:2:1.0-scsi-0:0:0:0-part5' is not readable. Skipping.
    File '/dev/disk/by-uuid/02603DE3603DDE5B' is not readable. Skipping.
    File '/dev/disk/by-uuid/14FC9FECFC9FC700' is not readable. Skipping.
    File '/dev/disk/by-uuid/3C3E4F81672CA83A' is not readable. Skipping.
    File '/dev/disk/by-uuid/5d21ae8f-80f2-46e2-8d3c-c4d1e6f71565' is not readable. Skipping.
    File '/dev/disk/by-uuid/928d11a4-eb4d-44e3-a4a0-94dd897be7d5' is not readable. Skipping.
    File '/dev/disk/by-uuid/b37c8528-ecdb-4c73-bb87-26280fad5127' is not readable. Skipping.
    File '/dev/input/by-id/usb-Logitech_Logitech_Illuminated_Keyboard-event-if01' is not readable. Skipping.
    File '/dev/input/by-id/usb-Logitech_Logitech_Illuminated_Keyboard-event-kbd' is not readable. Skipping.
    File '/dev/input/by-id/usb-Logitech_USB_RECEIVER-event-mouse' is not readable. Skipping.
    File '/dev/input/by-id/usb-Logitech_USB_RECEIVER-mouse' is not readable. Skipping.
    File '/dev/input/by-path/pci-0000:00:12.1-usb-0:3:1.0-event-kbd' is not readable. Skipping.
    File '/dev/input/by-path/pci-0000:00:12.1-usb-0:3:1.1-event' is not readable. Skipping.
    File '/dev/input/by-path/pci-0000:00:12.2-usb-0:5.4:1.0-event-mouse' is not readable. Skipping.
    File '/dev/input/by-path/pci-0000:00:12.2-usb-0:5.4:1.0-mouse' is not readable. Skipping.
    File '/dev/rtc' is not readable. Skipping.
    NOTE: Kbackup showed no errors previously!
    Looks like I could have serious problems!

    For reference, here are the drive details:

    Code:
    bumpy@bumpyputer:~$ sudo fdisk -l
    [sudo] password for bumpy: 
    Disk /dev/sda: 500.1 GB, 500107862016 bytes
    255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00093e02
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sda1   *          63   488392064   244196001    7  HPFS/NTFS/exFAT
    Disk /dev/sdb: 500.1 GB, 500107862016 bytes
    255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x0008573d
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdb1   *          63   318874184   159437061   83  Linux
    /dev/sdb2       318874185   959996204   320561010    5  Extended
    /dev/sdb3       959996205   976768064     8385930   82  Linux swap / Solaris
    /dev/sdb5       318874248   959996204   320560978+  83  Linux
    
    Disk /dev/sdc: 2000.4 GB, 2000396746752 bytes
    255 heads, 63 sectors/track, 243201 cylinders, total 3907024896 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x0003990f
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdc1              63   925488584   462744261    7  HPFS/NTFS/exFAT
    /dev/sdc2      1851025365  3907007999  1027991317+   f  W95 Ext'd (LBA)
    /dev/sdc3   *   925488585  1851025364   462768390    7  HPFS/NTFS/exFAT
    /dev/sdc5      1851025428  3907007999  1027991286    7  HPFS/NTFS/exFAT
    Partition table entries are not in disk order
    
    bumpy@bumpyputer:~$ sudo blkid
    /dev/sda1: UUID="02603DE3603DDE5B" TYPE="ntfs" 
    /dev/sdb1: UUID="5d21ae8f-80f2-46e2-8d3c-c4d1e6f71565" TYPE="ext4" 
    /dev/sdb3: UUID="b37c8528-ecdb-4c73-bb87-26280fad5127" TYPE="swap" 
    /dev/sdb5: UUID="928d11a4-eb4d-44e3-a4a0-94dd897be7d5" TYPE="ext2" 
    /dev/sdc3: UUID="3C3E4F81672CA83A" TYPE="ntfs" 
    /dev/sdc5: LABEL="Data Storeage" UUID="14FC9FECFC9FC700" TYPE="ntfs"
    Your comments would be appreciated!
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