http://www.allinterview.com New RTOS Interview Questions en-us http://www.allinterview.com/showanswers/100821.html A high priority thread waits on a low priority thread for resources for longer time than expected due to a medium thread preempts the low priority thread. Solution is Priority inheritance. Increase low priority threads priority to the level of hi http://www.allinterview.com/showanswers/96317.html I hope you wished to know the difference between IRQ and FIQ. If so, here goes the answer: CPU is a sequentially executing machine. It will execute the instructions from it's instruction set one-by-one until either program execution sequen http://www.allinterview.com/showanswers/92057.html Semaphore is a mechanism is an RTOS to serialize access to a resource/resources for all the threads in the system. There are 2 types of semaphore 1. counting semaphore - this is used when a set of resources have to be shared between many thread http://www.allinterview.com/showanswers/86944.html That is very strange , in your case the problem does not seem to be the queue or msgQRecieve .I would go through the following checklist : 1)What is the priority given to task A ? Is it high enough when compared to other coexisting tasks ? I http://www.allinterview.com/showanswers/68630.html GPOS- GP Opertaing System RTOS -Real Time Operating System http://www.allinterview.com/showanswers/68625.html The standard UNIX kernel is a nonpreemptive kernel; it does not allow a user process to preempt a process executing in kernel mode. Once a running process issues a system call and enters kernel mode, preemptive context switches are disabled until http://www.allinterview.com/showanswers/67037.html http://www.allinterview.com/showanswers/59861.html This might be because, you might be allocating memory dynamically from the heap. But care is not taken to deallocate the same. as a result, there are memory leaks and finally the os says that there is no free memory http://www.allinterview.com/showanswers/57749.html Not sure what this question is. But looks like the question is: Why 4GB addressing space available in Linux. Well, the simple answer is it can address so much of memory with available 32 address lines. 2 ^ 32 = 4 GB. http://www.allinterview.com/showanswers/57748.html 1.The operation must be atomic 2.The atomicity is ensured by disabling the interrupts and immediately after crictical section enabling the interrupts..here slight precausion has to be taken i.e do not forget the enabling of interrupts .... http://www.allinterview.com/showanswers/56635.html Adv: 1) Supports various types of processor platforms 2) Possible to Customize the Kernel and can reduce its size (upto ~300KB kernel size) 3) Especially for the embedded device platforms Disadv: 1) Process limits, max. 32 process at a time i http://www.allinterview.com/showanswers/56634.html I am not sure in every cases, whether this is true..?? May be the reason is, While compared to PocketPc, smartphone has a limited h/w resources, like memories etc. In order to reduce the kernel+application size, they are removing the libraries fo http://www.allinterview.com/showanswers/56633.html http://www.allinterview.com/showanswers/56632.html there are four levels in Win CE architecture. They are 1)Hardware layer 2)OEM layer 3)OS layer 4)Application layer for more info refer to http://msdn2.microsoft.com/en-us/library/ms905093.aspx http://www.allinterview.com/showanswers/56631.html MSFT standard SDK's are, 1. Windows Mobile for Smartphone = Windows Mobile Standard. 2. Windows Mobile for Pocket PC = Windows Mobile Classic. 3. Windows Mobile for Pocket PC Phone Edition = Windows Mobile Professional.