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For example , in the Linux kernel , context switching involves switching registers , stack pointer , program counter , flushing the translation lookaside buffer ( TLB ) and loading the page table of the next process to run ( unless the old process shares the memory with the new ) .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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