visitnitya

 Profile Answers by visitnitya 

• Jan 14th, 2008

 

the four techniques are-
1)mutual exclusion
2)circular wait
3)hold & wait
4)no premption

nilupul21

 Profile Answers by nilupul21 

• Aug 23rd, 2009

 

Strategies to dealt with deadlocks are:

• Ignore deadlock (This is done in systems which are infrequently meeting with deadlocks)


• Detection and recovering


• Avoiding deadlocks by careful resource allocation


• Preventing deadlock operating conditions. These conditions are




1. Mutual exclusiveness (two processes cant use same resource at same time)


2. Hold and wait


3. No preemtion (after allocating resource, it cant be taken back until it is released by process)


4. Cycles in resource allocation diagrams