Linux – CentOS 6.5 mdadm Raid 1 – Kernel Panic during raid data check

I have a brand new CentOS 6.5 install with two (mounted to /mnt/data) 1tb Western Digital Black drives in raid 1 with mdadm, configured via the installer.
Unfortunately every now and again the entire system kernel panics with a trace similar to below:

Any tips on diagnosing or fixing this?
Much appreciated!

EDIT: It appears this happened around the same time as a raid data check occured:
EDIT 2: The last two crashes have happened at just past 1am Sunday, same time data check occurs.

Mar 23 01:00:02 beta kernel: md: data-check of RAID array md0
Mar 23 01:00:02 beta kernel: md: minimum _guaranteed_  speed: 1000 KB/sec/disk.
Mar 23 01:00:02 beta kernel: md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for data-check.
Mar 23 01:00:02 beta kernel: md: using 128k window, over a total of 976629568k.

/proc/mdstat

    Personalities : [raid1] 
md0 : active raid1 sdc1[1] sdb1[0]
      976629568 blocks super 1.1 [2/2] [UU]
      bitmap: 0/8 pages [0KB], 65536KB chunk

unused devices: <none>

mdadm -D

/dev/md0:
        Version : 1.1
  Creation Time : Fri Mar  7 16:07:17 2014
     Raid Level : raid1
     Array Size : 976629568 (931.39 GiB 1000.07 GB)
  Used Dev Size : 976629568 (931.39 GiB 1000.07 GB)
   Raid Devices : 2
  Total Devices : 2
    Persistence : Superblock is persistent

  Intent Bitmap : Internal

    Update Time : Sun Mar 23 03:36:59 2014
          State : active 
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           Name : beta.fmt2.spigot-servers.net:0  (local to host beta.fmt2.spigot-servers.net)
           UUID : 89a86538:f6162473:d5e0524c:b80566d6
         Events : 1728

    Number   Major   Minor   RaidDevice State
       0       8       17        0      active sync   /dev/sdb1
       1       8       33        1      active sync   /dev/sdc1

EDIT 3: Different crash, occurred during a forced resync / check, also memtest passed 4 passes just fine:
http://files.md-5.net/s/X3Hi.png

EDIT 4: Even dd is causing crashes: http://files.md-5.net/s/hba2.png

EDIT 5: The SSD survives the dd torture test, guess that means I'm gonna try the drives without raid.