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Graded Discussion Board (GDB) of CS604 will be open on Monday, July 17, 2017 and close on Tuesday, July 18, 2017. GDB will remain open for two days, you are required to post your comments within due date.

Discussion Topic

Device drivers:

GDB scenario:

In Linux Operating System, device drivers are also loaded into kernel along with operating system. Sometime these drivers get crashed due to some circumstances and operating system become not responding or restarts. To avoid these situations, first approach is to load these drivers into the core kernel. Secondly, these drivers can be loaded into kernel as a separate process.

In your point of view, which one is the best approach to resolve this problem. Justify your answer with reasonable arguments.

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CS604

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in my point of view  drivers can be loaded into kernel as a separate process. is best for problem because if something goes wrong for any particular driver this will not hang the system and we can also find the problem easily

2ND OPTION

discussion start krain plzzzz

share ideas plzzzzzzzzzzzzzz

Yup i think 2nd one is the best option because if something bad happen we can terminate that process and not the whole process for further crashes.

Loadable or not, drivers are always specific to the devices they should make available to the system, so while they are sometimes "optional" parts of the OS, they do take part in it when operating.

Aslam-o-Alikum

i think Mehr fatima is right

sahi option kya hai...........?

When a computer crashes, it actually means the kernel has crashed. If only a single program has crashed but the rest of the system remains in operation, then the kernel itself has not crashed. A crash is the situation in which a program, either a user application or a part of the operating system, stops performing its expected function(s) and responding to other parts of the system. The program might appear to the user to freeze. If such program is a critical to the operation of the kernel, the entire computer could stall or shut down.

The kernel provides basic services for all other parts of the operating system, typically including memory management, process management, file management and I/O (input/output) management (i.e., accessing the peripheral devices). These services are requested by other parts of the operating system or by application programs through a specified set of program interfaces referred to as system calls.

Process management, possibly the most obvious aspect of a kernel to the user, is the part of the kernel that ensures that each process obtains its turn to run on the processor and that the individual processes do not interfere with each other by writing to their areas of memory. A process, also referred to as a task, can be defined as an executing (i.e., running) instance of a program.

Its 2nd coz we are safe in just 2nd one option...

sahi option kya hai.......?

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