I started having freeze up/slow downs and very high loads. I'm not 100% sure this isn't a hardware related problem but my limited testing with the windows partition has not indicated the same issues. Here is the log from dmesg
[  113.352633] ata1: EH complete
[  303.840313] ata1.00: exception Emask 0x0 SAct 0x7 SErr 0xd0000 action 0x6 frozen
[  303.840459] ata1: SError: { PHYRdyChg CommWake 10B8B }
[  303.840555] ata1.00: failed command: READ FPDMA QUEUED
[  303.840656] ata1.00: cmd 60/20:00:00:84:71/00:00:3a:00:00/40 tag 0 ncq 16384 in
[  303.840660]          res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[  303.840907] ata1.00: status: { DRDY }
[  303.840975] ata1.00: failed command: READ FPDMA QUEUED
[  303.841074] ata1.00: cmd 60/08:08:60:08:40/00:00:07:00:00/40 tag 1 ncq 4096 in
[  303.841077]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  303.841327] ata1.00: status: { DRDY }
[  303.841395] ata1.00: failed command: READ FPDMA QUEUED
[  303.841493] ata1.00: cmd 60/08:10:e8:d4:c5/00:00:23:00:00/40 tag 2 ncq 4096 in
[  303.841496]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  303.841741] ata1.00: status: { DRDY }
[  303.841813] ata1: hard resetting link
[  304.332326] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[  304.344513] ata1.00: configured for UDMA/133
[  304.360371] ata1.00: device reported invalid CHS sector 0
[  304.360382] ata1.00: device reported invalid CHS sector 0
[  304.360388] ata1.00: device reported invalid CHS sector 0
[  304.360410] ata1: EH complete
[  937.824322] ata1.00: exception Emask 0x0 SAct 0x1fffffff SErr 0xd0000 action 0x6 frozen
[  937.824336] ata1: SError: { PHYRdyChg CommWake 10B8B }
[  937.824346] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824361] ata1.00: cmd 61/00:00:00:7f:cc/01:00:09:00:00/40 tag 0 ncq 131072 out
[  937.824364]          res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824372] ata1.00: status: { DRDY }
[  937.824378] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824391] ata1.00: cmd 61/48:08:00:c3:cc/00:00:09:00:00/40 tag 1 ncq 36864 out
[  937.824394]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824401] ata1.00: status: { DRDY }
[  937.824407] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824419] ata1.00: cmd 61/08:10:18:a9:17/00:00:00:00:00/40 tag 2 ncq 4096 out
[  937.824422]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824429] ata1.00: status: { DRDY }
[  937.824435] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824447] ata1.00: cmd 61/08:18:f0:35:20/00:00:3c:00:00/40 tag 3 ncq 4096 out
[  937.824450]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824456] ata1.00: status: { DRDY }
[  937.824462] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824474] ata1.00: cmd 61/08:20:f8:4b:14/00:00:00:00:00/40 tag 4 ncq 4096 out
[  937.824477]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824484] ata1.00: status: { DRDY }
[  937.824490] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824502] ata1.00: cmd 61/80:28:c8:84:cc/00:00:09:00:00/40 tag 5 ncq 65536 out
[  937.824505]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824511] ata1.00: status: { DRDY }
[  937.824517] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824529] ata1.00: cmd 61/08:30:d8:49:20/00:00:00:00:00/40 tag 6 ncq 4096 out
[  937.824532]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824539] ata1.00: status: { DRDY }
[  937.824545] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824557] ata1.00: cmd 61/08:38:60:18:80/00:00:00:00:00/40 tag 7 ncq 4096 out
[  937.824560]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824566] ata1.00: status: { DRDY }
[  937.824572] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824584] ata1.00: cmd 61/08:40:48:08:c0/00:00:14:00:00/40 tag 8 ncq 4096 out
[  937.824587]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824594] ata1.00: status: { DRDY }
[  937.824600] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824612] ata1.00: cmd 61/08:48:78:08:c0/00:00:15:00:00/40 tag 9 ncq 4096 out
[  937.824615]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824621] ata1.00: status: { DRDY }
[  937.824627] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824639] ata1.00: cmd 61/08:50:80:08:40/00:00:23:00:00/40 tag 10 ncq 4096 out
[  937.824643]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824649] ata1.00: status: { DRDY }
[  937.824655] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824667] ata1.00: cmd 61/08:58:10:09:c0/00:00:3b:00:00/40 tag 11 ncq 4096 out
[  937.824670]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824677] ata1.00: status: { DRDY }
[  937.824683] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824695] ata1.00: cmd 61/08:60:68:09:c1/00:00:3b:00:00/40 tag 12 ncq 4096 out
[  937.824698]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824705] ata1.00: status: { DRDY }
[  937.824711] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824723] ata1.00: cmd 61/08:68:58:08:00/00:00:00:00:00/40 tag 13 ncq 4096 out
[  937.824726]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824732] ata1.00: status: { DRDY }
[  937.824738] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824750] ata1.00: cmd 61/08:70:90:08:00/00:00:00:00:00/40 tag 14 ncq 4096 out
[  937.824753]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824760] ata1.00: status: { DRDY }
[  937.824766] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824778] ata1.00: cmd 61/08:78:f0:08:00/00:00:00:00:00/40 tag 15 ncq 4096 out
[  937.824781]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824787] ata1.00: status: { DRDY }
[  937.824793] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824805] ata1.00: cmd 61/08:80:40:2c:00/00:00:00:00:00/40 tag 16 ncq 4096 out
[  937.824808]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824815] ata1.00: status: { DRDY }
[  937.824820] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824832] ata1.00: cmd 61/08:88:70:2c:00/00:00:00:00:00/40 tag 17 ncq 4096 out
[  937.824835]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824842] ata1.00: status: { DRDY }
[  937.824848] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824860] ata1.00: cmd 61/08:90:d0:2c:00/00:00:00:00:00/40 tag 18 ncq 4096 out
[  937.824863]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824869] ata1.00: status: { DRDY }
[  937.824875] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824887] ata1.00: cmd 61/08:98:20:2d:00/00:00:00:00:00/40 tag 19 ncq 4096 out
[  937.824890]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824897] ata1.00: status: { DRDY }
[  937.824903] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824915] ata1.00: cmd 61/08:a0:a8:36:00/00:00:00:00:00/40 tag 20 ncq 4096 out
[  937.824918]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824924] ata1.00: status: { DRDY }
[  937.824930] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824942] ata1.00: cmd 61/08:a8:f8:5f:00/00:00:00:00:00/40 tag 21 ncq 4096 out
[  937.824945]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824952] ata1.00: status: { DRDY }
[  937.824957] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824969] ata1.00: cmd 61/08:b0:b0:94:04/00:00:00:00:00/40 tag 22 ncq 4096 out
[  937.824973]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.824979] ata1.00: status: { DRDY }
[  937.824985] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.824997] ata1.00: cmd 61/20:b8:00:09:40/00:00:23:00:00/40 tag 23 ncq 16384 out
[  937.825000]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.825007] ata1.00: status: { DRDY }
[  937.825013] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.825025] ata1.00: cmd 61/08:c0:a8:09:40/00:00:23:00:00/40 tag 24 ncq 4096 out
[  937.825028]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.825035] ata1.00: status: { DRDY }
[  937.825040] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.825052] ata1.00: cmd 61/18:c8:28:fe:41/00:00:23:00:00/40 tag 25 ncq 12288 out
[  937.825055]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.825062] ata1.00: status: { DRDY }
[  937.825068] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.825080] ata1.00: cmd 61/08:d0:18:52:95/00:00:3a:00:00/40 tag 26 ncq 4096 out
[  937.825083]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.825090] ata1.00: status: { DRDY }
[  937.825095] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.825107] ata1.00: cmd 61/08:d8:80:08:c0/00:00:3b:00:00/40 tag 27 ncq 4096 out
[  937.825110]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.825117] ata1.00: status: { DRDY }
[  937.825123] ata1.00: failed command: WRITE FPDMA QUEUED
[  937.825135] ata1.00: cmd 61/08:e0:00:09:c0/00:00:3b:00:00/40 tag 28 ncq 4096 out
[  937.825138]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[  937.825145] ata1.00: status: { DRDY }
[  937.825154] ata1: hard resetting link
[  938.316319] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[  938.328453] ata1.00: configured for UDMA/133
[  938.344416] ata1.00: device reported invalid CHS sector 0
[  938.344426] ata1.00: device reported invalid CHS sector 0
[  938.344433] ata1.00: device reported invalid CHS sector 0
[  938.344439] ata1.00: device reported invalid CHS sector 0
[  938.344444] ata1.00: device reported invalid CHS sector 0
[  938.344450] ata1.00: device reported invalid CHS sector 0
[  938.344455] ata1.00: device reported invalid CHS sector 0
[  938.344460] ata1.00: device reported invalid CHS sector 0
[  938.344466] ata1.00: device reported invalid CHS sector 0
[  938.344471] ata1.00: device reported invalid CHS sector 0
[  938.344477] ata1.00: device reported invalid CHS sector 0
[  938.344482] ata1.00: device reported invalid CHS sector 0
[  938.344488] ata1.00: device reported invalid CHS sector 0
[  938.344494] ata1.00: device reported invalid CHS sector 0
[  938.344499] ata1.00: device reported invalid CHS sector 0
[  938.344504] ata1.00: device reported invalid CHS sector 0
[  938.344510] ata1.00: device reported invalid CHS sector 0
[  938.344515] ata1.00: device reported invalid CHS sector 0
[  938.344521] ata1.00: device reported invalid CHS sector 0
[  938.344526] ata1.00: device reported invalid CHS sector 0
[  938.344531] ata1.00: device reported invalid CHS sector 0
[  938.344537] ata1.00: device reported invalid CHS sector 0
[  938.344542] ata1.00: device reported invalid CHS sector 0
[  938.344548] ata1.00: device reported invalid CHS sector 0
[  938.344553] ata1.00: device reported invalid CHS sector 0
[  938.344559] ata1.00: device reported invalid CHS sector 0
[  938.344564] ata1.00: device reported invalid CHS sector 0
[  938.344570] ata1.00: device reported invalid CHS sector 0
[  938.344575] ata1.00: device reported invalid CHS sector 0
[  938.344609] ata1: EH complete
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