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Radda [10]
3 years ago
13

When a user process is interrupted or causes a processor exception, the x86 hardware switches the stack pointer to a kernel stac

k, before saving the current process state. Explain why. Anderson, Thomas. Operating Systems: Principles and Practice (Volume 1 of 4) . Recursive Books. Kindle Edition.
Engineering
1 answer:
andre [41]3 years ago
7 0

Answer and Explanation

In x86, different stacks are used for kernel & user processes because of security purposes.

The kernel assigns the interrupt dispatch to a common kernel interrupt entry/exit

mechanism which saves pre-interrupt register state before summoning the registered handler(s).

When sending out an interrupt might launch a privilege and/or stack switch,

interrupts that occur while executing user process will switch to use the kernel stack in place at that point, without saving current state.

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true because BCD used 6 bits to represent a symbol .

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2 years ago
How do you check battery state of charge with a voltmeter
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2 years ago
A square silicon chip (k = 152 W/m·K) is of width 7 mm on a side and of thickness 3 mm. The chip is mounted in a substrate such
Harrizon [31]

Answer:

The steady-state temperature difference is 2.42 K

Explanation:

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t is the thickness of the silicon = 3 mm = 3/1000 = 0.003 m

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∆T = 6×0.003/152×4.9×10^-5 = 2.42 K

7 0
3 years ago
A rigid bar pendulum is attached to a cart, which moves along the horizontal plane. The rigid bar has a center of mass at L/2. T
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3 years ago
What is the significance of Saint Venant's principle?
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Answer:

While calculating the stresses in a body since we we assume a constant distribution of stress across a cross section if the body is loaded along the centroid of the cross section , this assumption of uniformity is assumed only on the basis of Saint Venant's Principle.

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7 0
2 years ago
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