Disp+work failed to start

Disp+work failed to start

on checking dev_disp log file i.e. E:\usr\sap\SOL\DVEBMGS00\work\dev_disp
getting details as below
Wed Jan 06 13:33:20 2016
*** Error 11 while initializing OS dependent part.
*** ERROR => DpEmInit: EmInit (1) [dpxxdisp.c   10781]
*** ERROR => DpMemInit: DpEmInit (-1) [dpxxdisp.c   10695]
*** DP_FATAL_ERROR => DpSapEnvInit: DpMemInit
*** DISPATCHER EMERGENCY SHUTDOWN ***
increase tracelevel of WPs
NiWait: sleep (10000ms) ...

Error 11 while initializing OS dependent part. - comes normally there are not enough space in mermory hence restart OS and started instance again which work fine.

Some times this happen in Windows OS due to memory release issue.