✎ soc:2010:cooldavid:journal:week9

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==== TCP cleanup ====

=== Cleanup TCP close actions ===
  * Reduce duplicate code by separating tcp_terminate() from tcp_close().
  * Use tcp_terminate to immediately free all tcp resources.
  * Use tcp_close() to bing TCP connection to closing state.
  * Make tcp_close() function simpler, not doing different job in different state.

==== Trace gPXE boot initialize steps about memory environment setup ====
  * After recent Michael Brown's [prefix] patch-set:
    * [prefix] Add A20-enabling code in libflat
    * [prefix] Move flatten_real_mode to libflat.S
    * [prefix] Move flatten_real_mode to .text16.early
    * [prefix] Add .text16.early section
    * [prefix] Use flat real mode for access to high memory
    * [prefix] Use flat real mode instead of real mode
  * gPXE now works fully on [[http://en.wikipedia.org/wiki/Unreal_mode|Flat real mode]].
  * Here is another [[http://www.df.lth.se/~john_e/gems/gem0022.html|nice document]] explains it.
  * Which solved the problem that big image relocate failure.
  * We can now safely modify the heap_size as we want. :)

Trace: • the_kernel • holger • benchmark • under_construction • debian_and_ubuntu • proposal • yazzy_test • usermode_howto • 2008 • journal

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