it seems all the crash logs just before crash have below message ... but not sure if that is the problem or just where its crashed. Googling like crazy now.

< 208.743> File "/usr/lib/enigma2/python/Components/Console.py", line 37, in finishedCB
< 208.743> File "/usr/lib/enigma2/python/Plugins/SystemPlugins/ViX/MountManager.py", line 501, in add_fstab
< 208.743> IndexError: list index out of range