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Categories  >>  Software  >>  Operating Systems  >>  RTOS  >>  Vxworks          Vxworks Interview Questions    Windows CE Interview Questions    RTOS AllOther Interview Questions hi this is srikanth i need video classes for Vxworks any body having this forward me thanking u No Answer is Posted For this Question Be the First to Post Answer

 

Other Vxworks Interview Questions
Question	Asked @	Answers
What is another for creating a task without using taskspawn?		2
Which RTOS supports Non-Preemptive scheduling ? Why other scheduling methods are supported by such Oses?	Elico	1
what do u mean by Semaphore..when v wil go for using this..explain about hat.what is the difference betw..binary ,,counting and mutex semphores	Bosch	1
what are the various methods to overcome it?		2
I have a situation where the programme counter(PC) shows that vxworks msgQreceive function has been called by task A and Q is full, still I am not picking up the messages. There is no other task registered to receive messages from this Q. The sending task B, which is ISR in this case, is getting timedout everytime it tries posting new message in it. A's state is PEND which means I am waiting for some resource to get free but PC shows I have called vxworks msgQReceive and currently at qJobget+0x018 location. There seems to be two causes now(identified by me): either vxworks qjobget task is not able to do semTake or no messages in Q. But Q is full and semTake failure seems unlikely(though I dont have a mechanism to check so). Besides explaining root cause for above, can anyone suggest how to get my task in READY state again? I also tried flushing the Q; on doing this, more messages get posted in Q but A still doesnt pick up any :(		2
What is priority inversion?	Juniper-Networks	8
IN RTOS HAVING 1OKBYTES OF MEMORY AND YOUR PROGRAMM FOR ASKING FOR 5KBYTES AND YOU GOT NULL ERROR ? WHY DOES IT BEHAVES LIKE THIS		3
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