https://www.emblogic.com/forum/categories/003-02-95-interview-questions-process-duplication/feed.rss Thu, 13 Aug 26 21:06:49 +0530 003.03.95.Interview-Questions-Process-Duplication - EmbLogic en-CA https://www.emblogic.com/forum/discussion/1547/20-debugging-and-tracing Fri, 31 May 2024 08:11:53 +0530 pravjot 1547@/forum/discussions 20. Debugging and Tracing

Describe how the kernel manages debugging and tracing for the child process if the parent process is being traced by a debugger during the `fork()` system call.

]]> https://www.emblogic.com/forum/discussion/1546/19-handling-pending-signals Fri, 31 May 2024 08:11:39 +0530 pravjot 1546@/forum/discussions 19. Handling Pending Signals

How does the kernel handle pending signals for the parent and child processes before returning to user space after a `fork()` system call?

]]> https://www.emblogic.com/forum/discussion/1545/18-architecture-specific-considerations-risc-v Fri, 31 May 2024 08:09:28 +0530 pravjot 1545@/forum/discussions 18. Architecture-Specific Considerations: RISC-V

How is the return to user space managed on RISC-V architectures? What is the function of the `sret` instruction?

]]> https://www.emblogic.com/forum/discussion/1544/17-architecture-specific-considerations-arm Fri, 31 May 2024 08:09:16 +0530 pravjot 1544@/forum/discussions 17. Architecture-Specific Considerations: ARM

How is the return to user space managed on ARM architectures? Explain the role of the `ERET` instruction.

]]> https://www.emblogic.com/forum/discussion/1543/16-architecture-specific-considerations-x86x86_64 Fri, 31 May 2024 08:09:04 +0530 pravjot 1543@/forum/discussions 16. Architecture-Specific Considerations: x86/x86_64

How is the return to user space managed on x86/x86_64 architectures? Describe the use of the `iret` instruction in this context.

]]> https://www.emblogic.com/forum/discussion/1542/15-detailed-example-of-returning-to-user-space Fri, 31 May 2024 08:06:42 +0530 pravjot 1542@/forum/discussions 15. Detailed Example of Returning to User Space

Walk through a detailed example of the steps involved in returning to user space after a `fork()` system call, from setting return values to continuing execution in user mode.

]]> https://www.emblogic.com/forum/discussion/1541/14-execution-of-parent-and-child-processes Fri, 31 May 2024 08:06:29 +0530 pravjot 1541@/forum/discussions 14. Execution of Parent and Child Processes

After the CPU switches back to user mode, how do the parent and child processes continue their execution? What distinguishes their execution paths?

]]> https://www.emblogic.com/forum/discussion/1540/13-switching-back-to-user-mode Fri, 31 May 2024 08:06:17 +0530 pravjot 1540@/forum/discussions 13. Switching Back to User Mode

How does the kernel switch the CPU from kernel mode back to user mode after setting up the CPU state for the parent and child processes?

]]> https://www.emblogic.com/forum/discussion/1539/12-restoring-cpu-state Fri, 31 May 2024 08:01:37 +0530 pravjot 1539@/forum/discussions 12. Restoring CPU State

Describe the process of restoring the CPU state for both the parent and child processes after a `fork()` system call. What elements are included in the CPU state?

]]> https://www.emblogic.com/forum/discussion/1538/11-return-values-of-fork Fri, 31 May 2024 08:01:24 +0530 pravjot 1538@/forum/discussions 11. Return Values of `fork()`

Explain how the kernel sets the return values of `fork()` for the parent and child processes. Why are these return values different?

]]> https://www.emblogic.com/forum/discussion/1537/10-load-balancing-in-multiprocessor-systems Fri, 31 May 2024 08:01:10 +0530 pravjot 1537@/forum/discussions 10. Load Balancing in Multiprocessor Systems

What is load balancing in the context of a multiprocessor system, and how does the scheduler achieve it? Why is load balancing important?

]]> https://www.emblogic.com/forum/discussion/1536/9-priority-management Fri, 31 May 2024 07:59:13 +0530 pravjot 1536@/forum/discussions 9. Priority Management

How does priority management influence the scheduling of processes in Linux? What factors are considered in calculating the priority of a task?

]]> https://www.emblogic.com/forum/discussion/1535/8-scheduling-policies-and-algorithms Fri, 31 May 2024 07:58:57 +0530 pravjot 1535@/forum/discussions 8. Scheduling Policies and Algorithms

Briefly describe the Completely Fair Scheduler (CFS), Round Robin scheduling, and Real-Time scheduling. How does each policy determine the next process to run?

]]> https://www.emblogic.com/forum/discussion/1534/7-ontext-switching Fri, 31 May 2024 07:58:40 +0530 pravjot 1534@/forum/discussions 7. ontext Switching

What is context switching, and how does it enable multitasking in a Linux system?

]]> https://www.emblogic.com/forum/discussion/1533/6-scheduler-decision-making Fri, 31 May 2024 07:56:35 +0530 pravjot 1533@/forum/discussions 6. Scheduler Decision-Making

How does the scheduler decide which process to run next? Mention some of the algorithms and factors involved in this decision-making process.

]]> https://www.emblogic.com/forum/discussion/1532/5-adding-to-the-run-queue Fri, 31 May 2024 07:56:22 +0530 pravjot 1532@/forum/discussions 5. Adding to the Run Queue

Explain the process of adding a newly created child process to the scheduler’s run queue. Why is this step important?

]]> https://www.emblogic.com/forum/discussion/1531/4-child-process-initialization Fri, 31 May 2024 07:56:05 +0530 pravjot 1531@/forum/discussions 4. Child Process Initialization

After a process calls `fork()`, how is the child process initialized and marked as `TASK_RUNNING`?

]]> https://www.emblogic.com/forum/discussion/1530/3-process-states Thu, 30 May 2024 00:00:42 +0530 pravjot 1530@/forum/discussions 3. Process States

Describe the different process states managed by the scheduler in Linux. What do each of these states signify?

]]> https://www.emblogic.com/forum/discussion/1529/2-run-queue-definition Thu, 30 May 2024 00:00:28 +0530 pravjot 1529@/forum/discussions 2. Run Queue Definition

What is a run queue in the context of the Linux scheduler? How does it function in a multiprocessor system?

]]> https://www.emblogic.com/forum/discussion/1528/1-role-of-the-scheduler Thu, 30 May 2024 00:00:14 +0530 pravjot 1528@/forum/discussions 1. Role of the Scheduler

What is the role of the scheduler in a Linux operating system, and how does it contribute to process management?

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