output of dmesg
[code]
[25115.183419] ata4.00: status: { DRDY }
[25115.183434] ata4: soft resetting link
[25115.429551] ata4.00: configured for PIO0
[25115.429560] ata4: EH complete
[25120.428511] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25120.428521] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25120.428523]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25120.428524]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25120.428527] ata4.00: status: { DRDY }
[25120.428542] ata4: soft resetting link
[25120.674657] ata4.00: configured for PIO0
[25120.674669] ata4: EH complete
[25120.674677] sr 3:0:0:0: ioctl_internal_command return code = 8000002
[25120.674679]    : Sense Key : Aborted Command [current] [descriptor]
[25120.674682]    : Add. Sense: No additional sense information
[25135.671907] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25135.671917] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25135.671919]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25135.671920]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25135.671923] ata4.00: status: { DRDY }
[25135.671938] ata4: soft resetting link
[25135.918059] ata4.00: configured for PIO0
[25135.918068] ata4: EH complete
[25150.915310] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25150.915321] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25150.915322]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25150.915323]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25150.915326] ata4.00: status: { DRDY }
[25150.915341] ata4: soft resetting link
[25151.161460] ata4.00: configured for PIO0
[25151.161470] ata4: EH complete
[25166.158712] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25166.158723] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25166.158724]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25166.158726]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25166.158728] ata4.00: status: { DRDY }
[25166.158743] ata4: soft resetting link
[25166.404861] ata4.00: configured for PIO0
[25166.404870] ata4: EH complete
[25181.402115] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25181.402126] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25181.402127]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25181.402129]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25181.402132] ata4.00: status: { DRDY }
[25181.402147] ata4: soft resetting link
[25181.648264] ata4.00: configured for PIO0
[25181.648277] ata4: EH complete
[25196.645515] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25196.645526] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25196.645527]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25196.645528]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25196.645531] ata4.00: status: { DRDY }
[25196.645547] ata4: soft resetting link
[25196.891664] ata4.00: configured for PIO0
[25196.891672] ata4: EH complete
[25211.888917] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25211.888928] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25211.888929]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25211.888930]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25211.888933] ata4.00: status: { DRDY }
[25211.888949] ata4: soft resetting link
[25212.135072] ata4.00: configured for PIO0
[25212.135086] ata4: EH complete
[25227.132317] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25227.132328] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25227.132329]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25227.132330]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25227.132333] ata4.00: status: { DRDY }
[25227.132348] ata4: soft resetting link
[25227.378467] ata4.00: configured for PIO0
[25227.378476] ata4: EH complete
[25242.375719] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25242.375729] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25242.375731]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25242.375732]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25242.375735] ata4.00: status: { DRDY }
[25242.375751] ata4: soft resetting link
[25242.621867] ata4.00: configured for PIO0
[25242.621878] ata4: EH complete
[25242.621885] sr0: CDROM (ioctl) error, command: Test Unit Ready 00 00 00 00 00 00
[25242.621891] sr: Sense Key : Aborted Command [current] [descriptor]
[25242.621894] sr: Add. Sense: No additional sense information
[25247.620827] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25247.620837] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25247.620839]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25247.620840]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25247.620843] ata4.00: status: { DRDY }
[25247.620858] ata4: soft resetting link
[25247.866999] ata4.00: configured for PIO0
[25247.867008] ata4: EH complete
[25252.865933] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25252.865944] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25252.865946]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25252.865947]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25252.865950] ata4.00: status: { DRDY }
[25252.865965] ata4: soft resetting link
[25253.112080] ata4.00: configured for PIO0
[25253.112089] ata4: EH complete
[25258.111035] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25258.111046] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25258.111048]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25258.111049]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25258.111052] ata4.00: status: { DRDY }
[25258.111067] ata4: soft resetting link
[25258.359185] ata4.00: configured for PIO0
[25258.359194] ata4: EH complete
[25263.358143] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25263.358153] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25263.358154]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25263.358156]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25263.358159] ata4.00: status: { DRDY }
[25263.358173] ata4: soft resetting link
[25263.604291] ata4.00: configured for PIO0
[25263.604300] ata4: EH complete
[25268.603252] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25268.603263] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25268.603264]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25268.603266]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25268.603269] ata4.00: status: { DRDY }
[25268.603283] ata4: soft resetting link
[25268.849397] ata4.00: configured for PIO0
[25268.849407] ata4: EH complete
[25273.848354] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25273.848365] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25273.848366]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25273.848368]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25273.848371] ata4.00: status: { DRDY }
[25273.848386] ata4: soft resetting link
[25274.094502] ata4.00: configured for PIO0
[25274.094513] ata4: EH complete
[25274.094521] sr 3:0:0:0: ioctl_internal_command return code = 8000002
[25274.094523]    : Sense Key : Aborted Command [current] [descriptor]
[25274.094527]    : Add. Sense: No additional sense information
[25289.091753] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25289.091763] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25289.091764]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25289.091766]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25289.091769] ata4.00: status: { DRDY }
[25289.091784] ata4: soft resetting link
[25289.337904] ata4.00: configured for PIO0
[25289.337914] ata4: EH complete
[25304.335157] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25304.335167] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25304.335169]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25304.335170]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25304.335173] ata4.00: status: { DRDY }
[25304.335188] ata4: soft resetting link
[25304.581307] ata4.00: configured for PIO0
[25304.581318] ata4: EH complete
[25319.578559] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25319.578570] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25319.578571]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25319.578572]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25319.578575] ata4.00: status: { DRDY }
[25319.578590] ata4: soft resetting link
[25319.824709] ata4.00: configured for PIO0
[25319.824718] ata4: EH complete
[25334.821958] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25334.821968] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25334.821970]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25334.821971]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25334.821974] ata4.00: status: { DRDY }
[25334.821989] ata4: soft resetting link
[25335.068109] ata4.00: configured for PIO0
[25335.068119] ata4: EH complete
[25350.065364] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25350.065375] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25350.065376]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25350.065377]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25350.065380] ata4.00: status: { DRDY }
[25350.065395] ata4: soft resetting link
[25350.311510] ata4.00: configured for PIO0
[25350.311518] ata4: EH complete
[25365.308762] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25365.308772] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25365.308774]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25365.308775]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25365.308778] ata4.00: status: { DRDY }
[25365.308793] ata4: soft resetting link
[25365.554913] ata4.00: configured for PIO0
[25365.554922] ata4: EH complete
[25380.552167] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25380.552178] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25380.552179]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25380.552180]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25380.552183] ata4.00: status: { DRDY }
[25380.552198] ata4: soft resetting link
[25380.798314] ata4.00: configured for PIO0
[25380.798322] ata4: EH complete
[25395.795565] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25395.795576] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25395.795577]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25395.795579]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25395.795582] ata4.00: status: { DRDY }
[25395.795596] ata4: soft resetting link
[25396.041721] ata4.00: configured for PIO0
[25396.041734] ata4: EH complete
[25396.041742] sr0: CDROM (ioctl) error, command: Test Unit Ready 00 00 00 00 00 00
[25396.041748] sr: Sense Key : Aborted Command [current] [descriptor]
[25396.041751] sr: Add. Sense: No additional sense information
[25401.040674] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25401.040684] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25401.040685]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25401.040687]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25401.040690] ata4.00: status: { DRDY }
[25401.040705] ata4: soft resetting link
[25401.286823] ata4.00: configured for PIO0
[25401.286832] ata4: EH complete
[25406.285780] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25406.285790] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25406.285792]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25406.285793]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25406.285796] ata4.00: status: { DRDY }
[25406.285811] ata4: soft resetting link
[25406.531931] ata4.00: configured for PIO0
[25406.531943] ata4: EH complete
[25411.530886] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25411.530897] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25411.530898]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25411.530900]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25411.530903] ata4.00: status: { DRDY }
[25411.530918] ata4: soft resetting link
[25411.777035] ata4.00: configured for PIO0
[25411.777044] ata4: EH complete
[25416.775995] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25416.776005] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25416.776006]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25416.776008]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25416.776011] ata4.00: status: { DRDY }
[25416.776025] ata4: soft resetting link
[25417.022144] ata4.00: configured for PIO0
[25417.022155] ata4: EH complete
[25422.021096] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25422.021107] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25422.021108]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25422.021110]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25422.021113] ata4.00: status: { DRDY }
[25422.021128] ata4: soft resetting link
[25422.267247] ata4.00: configured for PIO0
[25422.267259] ata4: EH complete
[25427.266204] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25427.266215] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25427.266216]          cdb 1e 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25427.266218]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25427.266221] ata4.00: status: { DRDY }
[25427.266236] ata4: soft resetting link
[25427.512356] ata4.00: configured for PIO0
[25427.512368] ata4: EH complete
[25427.512377] sr 3:0:0:0: ioctl_internal_command return code = 8000002
[25427.512379]    : Sense Key : Aborted Command [current] [descriptor]
[25427.512383]    : Add. Sense: No additional sense information
[25442.509605] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25442.509616] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25442.509617]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25442.509619]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25442.509622] ata4.00: status: { DRDY }
[25442.509637] ata4: soft resetting link
[25442.755755] ata4.00: configured for PIO0
[25442.755764] ata4: EH complete
[25457.753008] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25457.753019] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25457.753020]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25457.753022]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25457.753024] ata4.00: status: { DRDY }
[25457.753039] ata4: soft resetting link
[25457.999156] ata4.00: configured for PIO0
[25457.999166] ata4: EH complete
[25472.996406] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25472.996417] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25472.996418]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25472.996419]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25472.996422] ata4.00: status: { DRDY }
[25472.996437] ata4: soft resetting link
[25473.244557] ata4.00: configured for PIO0
[25473.244567] ata4: EH complete
[25488.243836] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25488.243847] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25488.243848]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25488.243850]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25488.243853] ata4.00: status: { DRDY }
[25488.243868] ata4: soft resetting link
[25488.489991] ata4.00: configured for PIO0
[25488.490002] ata4: EH complete
[25503.487266] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25503.487276] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25503.487278]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25503.487279]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25503.487283] ata4.00: status: { DRDY }
[25503.487298] ata4: soft resetting link
[25503.733415] ata4.00: configured for PIO0
[25503.733425] ata4: EH complete
[25524.952287] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25524.952299] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25524.952300]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25524.952302]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25524.952305] ata4.00: status: { DRDY }
[25524.952325] ata4: soft resetting link
[25525.444591] ata4.00: configured for PIO0
[25525.444603] ata4: EH complete
[25555.438884] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25555.438896] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25555.438898]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25555.438899]          res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
[25555.438902] ata4.00: status: { DRDY }
[25555.438924] ata4: soft resetting link
[25555.931137] ata4.00: configured for PIO0
[25555.931151] ata4: EH complete
[25573.794070] ata4.00: qc timeout (cmd 0xa0)
[25573.794083] ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
[25573.794091] ata4.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
[25573.794092]          cdb 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
[25573.794094]          res 51/20:03:00:00:00/00:00:00:00:00/a0 Emask 0x5 (timeout)
[25573.794097] ata4.00: status: { DRDY ERR }
[25573.794113] ata4: soft resetting link
[25588.950040] ata4.00: qc timeout (cmd 0xa1)
[25588.950048] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[25588.950052] ata4.00: revalidation failed (errno=-5)
[25588.950056] ata4: failed to recover some devices, retrying in 5 secs
[25593.970617] ata4: port is slow to respond, please be patient (Status 0x80)
[25596.462197] ata4: device not ready (errno=-16), forcing hardreset
[25596.462202] ata4: soft resetting link
[25611.575627] ata4.01: qc timeout (cmd 0xec)
[25611.575634] ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4)
[25611.575638] ata4: failed to recover some devices, retrying in 5 secs
[25616.596761] ata4: port is slow to respond, please be patient (Status 0x80)
[25619.088336] ata4: device not ready (errno=-16), forcing hardreset
[25619.088342] ata4: soft resetting link
[25634.201770] ata4.01: qc timeout (cmd 0xec)
[25634.201778] ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4)
[25634.201781] ata4: failed to recover some devices, retrying in 5 secs
[25639.222904] ata4: port is slow to respond, please be patient (Status 0x80)
[25641.714481] ata4: device not ready (errno=-16), forcing hardreset
[25641.714488] ata4: soft resetting link
[25656.828017] ata4.01: qc timeout (cmd 0xec)
[25656.828025] ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4)
[25656.828029] ata4: failed to recover some devices, retrying in 5 secs
[25661.849046] ata4: port is slow to respond, please be patient (Status 0x80)
[25664.340621] ata4: device not ready (errno=-16), forcing hardreset
[25664.340627] ata4: soft resetting link
[25679.532043] ata4.00: qc timeout (cmd 0xa1)
[25679.532052] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[25679.532055] ata4.00: revalidation failed (errno=-5)
[25679.532059] ata4: failed to recover some devices, retrying in 5 secs
[25684.553176] ata4: port is slow to respond, please be patient (Status 0x80)
[25687.044753] ata4: device not ready (errno=-16), forcing hardreset
[25687.044759] ata4: soft resetting link
[25702.236172] ata4.00: qc timeout (cmd 0xa1)
[25702.236181] ata4.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[25702.236185] ata4.00: revalidation failed (errno=-5)
[25702.236188] ata4.00: disabled
[25705.007689] ata4: port is slow to respond, please be patient (Status 0x80)
[25707.499266] ata4: device not ready (errno=-16), forcing hardreset
[25707.499272] ata4: soft resetting link
[25722.612699] ata4.01: qc timeout (cmd 0xec)
[25722.612707] ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4)
[25722.612710] ata4: failed to recover some devices, retrying in 5 secs
[25727.633832] ata4: port is slow to respond, please be patient (Status 0x80)
[25730.125407] ata4: device not ready (errno=-16), forcing hardreset
[25730.125413] ata4: soft resetting link
[25745.238842] ata4.01: qc timeout (cmd 0xec)
[25745.238850] ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4)
[25745.238855] ata4: failed to recover some devices, retrying in 5 secs
[25750.259978] ata4: port is slow to respond, please be patient (Status 0x80)
[25752.751551] ata4: device not ready (errno=-16), forcing hardreset
[25752.751558] ata4: soft resetting link
[25767.864987] ata4.01: qc timeout (cmd 0xec)
[25767.864995] ata4.01: failed to IDENTIFY (I/O error, err_mask=0x4)
[25767.864998] ata4: failed to recover some devices, retrying in 5 secs
[25772.886623] ata4: port is slow to respond, please be patient (Status 0x80)
[25775.423326] ata4: device not ready (errno=-16), forcing hardreset
[25775.423331] ata4: soft resetting link
[25775.507075] ata4: EH complete
[25775.507084] sr0: CDROM (ioctl) error, command: Test Unit Ready 00 00 00 00 00 00
[25775.507091] sr: Sense Key : Aborted Command [current] [descriptor]
[25775.507094] sr: Add. Sense: No additional sense information
[32361.877451] loop: module loaded
[32362.049678] ISO 9660 Extensions: Microsoft Joliet Level 3
[32362.117545] ISO 9660 Extensions: RRIP_1991A
[32645.193287] nautilus[32503]: segfault at fb000018 eip b76fe2d6 esp bfa2b360 error 5
[/code]
wish there was a edit button