CPU al 100% e errori nel file kmsg

[rex_ita]

Ciao a tutti,

da stamattina sto osservando un comportamento anomalo del NAS (TS-419P+, ultimo firmware) con la CPU costantemente al 100%. Dando un'occhiata ai processi ho visto che quelli che occupano più CPU sono dd e vs_refresh; di seguito l'output del comando top

PID USER STATUS RSS PPID %CPU %MEM COMMAND
1786 admin R 456 6445 24.4 0.0 dd
22884 admin D 660 6590 5.6 0.1 vs_refresh
9930 admin D 664 6590 5.4 0.1 vs_refresh
9928 admin D 680 6590 4.7 0.1 vs_refresh
21299 admin D 632 6590 4.7 0.1 vs_refresh
1211 admin SW 0 2 4.7 0.0 fnotify
21301 admin D 660 6590 4.5 0.1 vs_refresh
22887 admin R 656 6590 4.5 0.1 vs_refresh
19828 admin D 628 6590 4.3 0.1 vs_refresh
19826 admin D 624 6590 4.3 0.1 vs_refresh
390 admin D 656 6590 3.9 0.1 vs_refresh
392 admin D 628 6590 3.9 0.1 vs_refresh

La linea di comando del processo dd è la seguente:

2092 admin 456 R /bin/dd if=/proc/kmsg of=/mnt/HDA_ROOT/.logs/kmsg bs=1 count=1024000

e il file kmsg contiene i seguenti errori ripetuti infinite volte:

<3<3>[66797446.40000000] fnnotiffy: !!!! Ssle_Nootifyy: Caan't get r ** error (device md0): ext4_lookup: deleted inode referenced: 110928400
<2>[679746.440000] EXT4-fs error (device md0): ext4_lookup: deleted inode referenced: 177340420
<2>[679746.440000] EXT4-fs error (device md0): htree_dirblock_to_tree: bad entry in directory #110928409: inode out of bounds - offset=0error (dEXT4-fs error (device md0): ext4_lookup: deleted inode referenced: 110928598
<3>[679746.460000] fnotify: !!! Sys_File_Notify: Can'00] ffnotifnotify:fnotify: fffffffnotify:ffffnotify: !!! Sfffffnotify: !!i_File_Ne_Notif: Can't get resolve a path error! (ffffffdc)
<3>[679746.470000] fnotify: !!! Sys_File_Notify: Can't get resolve a path error! (ffffffdc)
<3>[679746.470000] fnotify: !!! Sys_File_Notify: Can't get resolve a path error! (ffffffdc)
<36.520000] f66.66.6.7777777777779746.530000] fnotify: !!! Sys_File_Notify: Can't get resolve a path error! (ffffffdc)
<3>[679746.530000] fnotify: !!! Sys_File_Notify: Can't get resolve a path error! (ffffffdc)
<3>[679746.530000] fnotify: !!! Sys_File_Notify: Can't get resolve a path error! (ffffffdc)

Qualcuno può suggerirmi come fare a risolvere il problema?

Ringrazio in anticipo