I Have faced the same issue today. Checked the diagnostic report and found the following error
{"bug_type":"110","os_version":"iOS 8.0.2 (12A405)"}
Incident Identifier: 26369F39-B32E-45FA-8F55-22E129BD4D79
CrashReporter Key: af0910b78f0969f0e25d7cba967a36d86ea20941
Hardware Model: iPad4,2
Date/Time: 2014-10-07 00:27:42.474 +0530
OS Version: iOS 8.0.2 (12A405)
Debugger message: WDT timeout
9s ago: 0b50 0f9fd0ce63 0r1f54000 0m0/1
OS version: 12A405
Kernel version: Darwin Kernel Version 14.0.0: Thu Sep 18 21:51:01 PDT 2014; root:xnu-2783.1.72~23/RELEASE_ARM64_S5L8960X
iBoot version: iBoot-2261.1.68
secure boot?: YES
Paniclog version: 3
Kernel slide: 0x000000001dc00000
Kernel text base: 0xffffff801fc02000
Epoch Time: sec usec
Boot : 0x54278a5c 0x00000000
Sleep : 0x5432d8a3 0x0009a62d
Wake : 0x5432daa3 0x000b3020
Calendar: 0x5432e611 0x00018080
Total cpu_usage: 16976620
Thread task pri cpu_usage
0xffffff80012a05e0 syslogd 31 0
0xffffff80009b6ac0 kernel_task 0 5280622
0xffffff80009c1800 kernel_task 0 5184090
Panicked task 0xffffff8000998b20: 61774 pages, 159 threads: pid 0: kernel_task
panicked thread: 0xffffff80009c1800, backtrace: 0xffffff8020097a20
lr: 0xffffff801fcdb44c fp: 0xffffff8020097a80
lr: 0xffffff80202b5cc8 fp: 0xffffff8020097f60
lr: 0xffffff8020cdb20c fp: 0xffffff8020097fd0
lr: 0xffffff801ffedd4c fp: 0xffffff8020097fe0
lr: 0xffffff801fcd126c fp: 0xffffff8020097ff0
lr: 0xffffff801fcd9a58 fp: 0xffffff80a9df3ca0
lr: 0xffffff801fcd83a0 fp: 0x0000000000000000
********* Dumping thread state and stacks *********
Task 0xffffff8000998b20: 61774 pages, 159 threads: pid 0: kernel_task
thread 0xffffff802011e150
kernel continuation: 0xffffff801fc9bac4
>>>>>>>>thread 0xffffff80009c1800
>>>>>>>> kernel backtrace: ffffff80a9df3ca0
>>>>>>>> 0xffffff801fcd83a0