Home » LPI » 117-201 » What is the correct parameter to pass to the kernel at boot time to force it to use a single CPU?
You are having problems with programs crashing on an SMP system, and would like to run your system in non-SMP mode for troubleshooting purposes. What is the correct parameter to pass to the kernel at boot time to force it to use a single CPU?
A. block-cpu-1
B. cpucount=1
C. disable-cpu
D. nosmp
E. enable_smp=no
Correct Answer: D
Explanation/Reference:
Explanation: The nosmp option can be used at boot time to disable SMP (symmetric multiprocessing), thus causing the system to run in uniprocessor
(single processor) mode.
Incorrect Answers
A:This in an incorrect option.
B:Cpucount=1 will run one processor, but the single processor will run in SMP mode. Cpucount=0 will run no processors in SMP mode effectively disabling SMP.
C:Disable-cpu in an incorrect option.
E:enable_smp=no is an incorrect option.
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