In xv6, when the swtch() in schedule() finishes context-switching to the selected process, but before that...
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In xv6, when the swtch() in schedule() finishes context-switching to the selected process, but before that process executes its next instruction, the system is/has: O Running using the selected process's kernel stack O Running using the selected process's user-space call stack, but has not yet returned to user mode O Completed the transition back to user-mode, including switching to the user-space stack, and is ready to resume where we left off before trapping into the kernel Running on the scheduler's kernel stack O Running on the global kernel stack In xv6, when the swtch() in schedule() finishes context-switching to the selected process, but before that process executes its next instruction, the system is/has: O Running using the selected process's kernel stack O Running using the selected process's user-space call stack, but has not yet returned to user mode O Completed the transition back to user-mode, including switching to the user-space stack, and is ready to resume where we left off before trapping into the kernel Running on the scheduler's kernel stack O Running on the global kernel stack
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Related Book For
Operating Systems Internals and Design Principles
ISBN: 978-0133805918
8th edition
Authors: William Stallings
Posted Date:
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