Hi Praveen,
a. did you change your kernel yesterday?
b. You need to check the WP0 log at 05:43 in the morning as that's when it reported failed to the dispatcher:
Wed Feb 05 05:43:54 2014
*** ERROR => DpHdlDeadWp: W0 (pid 3740) died (severity=0, status=0) [dpxxwp.c 1727]
Regards,
Graham