Question 8
In a 64-bit RISC-V system, the scause register stores trap information. What will be the value of scause for an Environment call from U-mode?
0x0000000000000008
0x8000000000000008
0x0000000000000009
0x8000000000000009
Question 8: In a 64-bit RISC-V system, the scause register stores tra…
Show answer
Correct answer
0x0000000000000008
Question 8 of 20 in the IIT Madras BS Operating Systems (Operating Systems) End Term paper sat on 10 May 2026, in the January 2026 term (OS 10 May 26). It carries 2 marks.
More questions from this paper
- Consider the below plots representing the order in which the requests are serviced by different disk scheduling algorit…
- Consider the following program. Assume execlp succeeds. Which output order is guaranteed?
- Consider the following resource-allocation situation.\ Process P1 holds resource R1 and waits for R2. • Process P2 hold…
- If the memory map for a device starts at address 0x40001000 and has a size of 8192 bytes, what is the last valid addres…
- Consider that the following commands are executed in a shell with root (/) as the current directory. What is the absolu…
- In xv6 on RISC-V, which register contains the system call number when the user process traps into the kernel?
- When a shell executes a command and then waits for it to finish before printing the next prompt, which sequence of syst…
- What is the major disadvantage of the First-Come, First-Served (FCFS) CPU scheduling algorithm?
- When a process successfully invokes the exec system call, which of the following definitely remains unchanged?
- Consider the code segment (for xv6) given below. What are the base address and the end address of the count reg?
- Consider the following code snippet Which of the following statements is correct?
- Consider the following processes in an xv6-like operating system:\ Process P1 is waiting in the ready queue. • Process …
- Assume that context switches can occur at any time during execution. The variable counter is shared between two concurr…
- Choose all correct statements regarding compiling and linking multiple C source files using gcc.
- A system has 256 MiB of physical memory and uses a page size of 4 KiB. How many page frames are present in RAM?\ Assume…
- Consider the following processes, all arriving at time 0 and entering the ready queue in the order shown below. If the …
- Consider the following processes scheduled using FCFS. What is the average waiting time?
- Consider the following processes scheduled using non-preemptive SJF. What is the average response time?
- A system uses a 32-bit virtual address space with a page size of 4 KiB and a single-level page table. How many entries …