how many "contexts" are there?

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  the standard explanation of context related to linux is that there
are three "contexts" one can be in at any time:

  * user context
  * kernel, process context
  * kernel, interrupt context

but that's clearly(?) an incomplete (or not refined enough) list,
since it doesn't include kernel threads, and a quick google showed
this:

http://stackoverflow.com/questions/9389688/in-what-context-kernel-thread-runs-in-linux

  so is there a more refined or up-to-date list of contexts which
explains them fairly well, including the subtle distinctions?  thanks.

rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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