What are the necessary conditions for deadlocks?, Operating System

Assignment Help:

What are the necessary conditions for deadlocks?

1.Mutual exclusion:  Only one process at a time is able to use the resource.

2.Hold and wait:  A process should be holding at least one resource and waiting   to acquire additional resources that are currently being held by other processes.

3.No preemption:  Resource cannot be preempted that is, a resource is able to be released only voluntarily by the process holding it, subsequent to that process has completed its task.

4.Circular wait:A set {p0,p1,.........,pn} of waiting processes should exit such that p0 is waiting for a resource that is held by p1 and p1 is waiting for a resource that is held by p2,.........,pn-1 is waiting for a resource that is held by pn, and pn is waiting for a resource that is held by p0.

 


Related Discussions:- What are the necessary conditions for deadlocks?

Garbage collection, The dynamic memory allocator is a layer between the app...

The dynamic memory allocator is a layer between the application and the OS, managing heap objects. When a program requests memory from the allocator (via malloc(), for instance), t

Linux, what is I/O management Linux

what is I/O management Linux

Write a note about directory structure with examples., Write a note about ...

Write a note about Directory structure with examples. The FreeBSD directory hierarchy is basic to obtaining an overall understanding of the system. The most significan

What is a path name, What is a path name? A pathname is the path from t...

What is a path name? A pathname is the path from the root by all subdirectories to a specified file. In a two-level directory structure a user name and a file name explain a pa

Advantages and disadvantages of thread, OPERATING SYSTEM 1. Describe th...

OPERATING SYSTEM 1. Describe the term operating system. Write down the functions of operating system. 2. Explain Thread? Write down the advantages and disadvantages of threa

What is external fragmentation?, What is external fragmentation? As pro...

What is external fragmentation? As process are removed from and loaded to the memory free memory space is bracken into pieces .external fragmentation take place when enough mem

What is real time system, What is real time system? A real time system ...

What is real time system? A real time system has well explained, fixed time constraints. Processing must be done within the explained constraints, or the system will fail. It i

Define page fault, Page fault is a trap to the software gained by the har...

Page fault is a trap to the software gained by the hardware when a process accesses a page that is goes in the virtual address space, but not added in physical memory. In the har

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd