Examine the output above where os/161 crashes

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Reference no: EM133370655

Question: Firstly, lets examine the output above where OS/161 crashes. Skip the initialisation status messages until you reach the point where the panic begins. Let's examine each line at a high level (as the semester progresses you'll get a deeper understanding of what is going on).

A fatal exception has occured, i.e. something OS/161 can't recover from, so it has panic-ed. The exception is related to storing to memory while in kernel mode.
The EPC (Exception Program Counter) address is the address in memory of the instruction that caused the problem. The vaddr is the address it was attempting to store to. You might guess at this point that the code might be attempting to store to a NULL pointer -- NULL has the value zero when viewed as a integer.
Yes, we are panic-ing, kernels should not reference NULL pointers.
sys161 is nice enough to stop and wait for you to connect os161-gdb to inspect the problem.

Reference no: EM133370655

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