is this error releted to a dying HDD or a bad cable? 

hda4 is mounted.

hda: irq timeout: status=0xd0 { Busy }

ide0: reset: success

hda: irq timeout: status=0xd0 { Busy }

ide0: reset: success

hda: irq timeout: status=0xd0 { Busy }

ide0: reset: success

hda: irq timeout: status=0xd0 { Busy }

end_request: I/O error, dev 03:06 (hda), sector 12

hda: status timeout: status=0xd0 { Busy }

hda: drive not ready for command

ide0: reset: success


I also go this error when i tried to do a fsck 
Flags: nzcv  IRQs on  FIQs on  Mode USER_32  Segment user

Control: D03AD17D  Table: D03AD17D  DAC: 00000015

init(1): memory violation at pc=0x00000000, lr=0x02007140 (bad address=0x0000000

0, code 2)

pc : [<00000000>]    lr : [<02007140>]

sp : 00000000  ip : bffffd88  fp : 00000000

r10: bffffe98  r9 : 00000000  r8 : 0203d938

r7 : bffffdac  r6 : 0202ed90  r5 : 00000015  r4 : 00000000

r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : 00000015