4.05 - Safe State vs Unsafe State

This video explains What is safe state and unsafe state.
Learn safe state and unsafe state with animation and examples.
A state is safe if the system can allocate all resources requested by all processes ( up to their stated maximums ) without entering a deadlock state.
More formally, a state is safe if there exists a safe sequence of processes { P0, P1, P2, ..., PN } such that all of the resource requests for Pi can be granted using the resources currently allocated to Pi and all processes Pj where j is less than i. ( I.e. if all the processes prior to Pi finish and free up their resources, then Pi will be able to finish also, using the resources that they have freed up. )
If a safe sequence does not exist, then the system is in an unsafe state, which MAY lead to deadlock. ( All safe states are deadlock free, but not all unsafe states lead to deadlocks.)
Operating System PPTs with animation is available here: www.darshan.ac.in/DIET/CE/GTU-...
This video is recorded by Prof. Firoz Sherasiya ([e-mail], [phone]) at Computer Engineering Department of Darshan Institute of Engineering & Technology, Rajkot as per GTU Syllabus.
GTU - Computer Engineering (CE) - Semester 4 - 2140702 - Operating System- Deadlocks- Safe state vs Unsafe state
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[@elvismrema4322]

Lecture has no deadlock so it's safe one☺
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[@aboubakar_franckpolla_teka446]

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[@027_dhananjaysinhjhala5]

tysm sir! helped a lot! darshan institute students are very lucky to have you.

[@Samort7]

Great explanation! Thanks a bunch!

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[@amifeeth]

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[@kempisabel9945]

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[@faisalahmed9434]

Thanks! Understood the lecture.

[@kantimahanthijyothsna2055]

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[@taufikditowijaya4824]

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[@muhammadsohail7557]

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[@darshitgandhi9122]

What if in safe state, B requires resources from the resources that A is holding...and it doesn't require free resources?

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