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| In this mode, the executing code has complete and unrestricted access to the underlying hardware. It can execute any CPU instruction and reference any memory address | |
| The two methods for the birth of a process: | |
| Two ways to implement a thread library: 1) library entirely in ____ ____ and 2) a _____-level lib supported by ___ | |
| Interrupts are _____ while the first interrupt is being processed | |
| PCB contents (7 sectors, last is '...') | |
| ______ operations must be performed entirely or not at all | |
| What are the OS design approaches? | |
| These mechanisms ensure that only one process is doing certain things at once (others are excluded)- most of these include a locking mechanism | |
| This is when the output of a function is unexpectedly and critically dependent on the timing of events: | |
| where do we find the process state? | |
| define broadcast() in the context of a monitor: | |
| Independent processes are ______ & ______ and scheduling _____ affect the result | |
| For every interrupt, there's a fixed mem location for ______ | |
| mutual exclusion within a monitor IS/IS NOT ensured | |
| Type of semaphore whose integer variable can range over an unrestricted domain | |
| This type of process's state is not shared in any way with other processes | |
| When you map user-level threads to kernel threads, this is of the _______ model | |
| This is a mechanism for ensuring processes in the critical section execute in nonoverlapping time intervals | |
| define signal() in the context of a monitor: | |
| This is when each user-level thread goes to a distinct kernel thread; creating/switching in this case is more costly, but allows for more flexible scheduling | |
| In this mode, the executing code has no ability to directly access hardware or reference memory. Code running in *** must delegate to system APIs to access hardware or memory. Due | |
| Name the system call: when called with an executable as parameter, the calling process is overwritten by the process created to run this executable | |
| this is a semaphore that is restricted to locked/unlocked, 0/1, available/unavailable, etc. | |
| after ______, control returns back to next instruction in the program (ret. address- the PC at that point- is pushed onto stack) | |
| Given an atomic operation, you can use it to: (2) | |
| This is an atomic operation that increments the semaphore S by 1 | |
| variables shared between multiple processes are called | |
| This type of process shares states with other processes | |
| Each process has a ____ ____ of control | |
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