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451 Operating Systems Section 8. May 21, 2009. Agenda. HW 3 debrief Story time with Mr. McElroy. It hurts me too . HW 3. I am still working on grading them… Goal is to send you scores by Monday Some people really understand programming in C…. a nd some people really do not .

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Presentation Transcript
agenda
Agenda
  • HW 3 debrief
  • Story time with Mr. McElroy
slide4
HW 3
  • I am still working on grading them…
  • Goal is to send you scores by Monday
  • Some people really understand programming in C…. and some people really do not 
hw 3 the good
HW 3: The Good
  • Answers to the questions from the book were great. People really understood the questions and submitted nice and complete work.
  • Part 1: almost everyone nailed the semaphore implementation
  • Some people had perfect hw’s which is impressive because last week was so busy!
hw 3 the bad
HW 3: The Bad
  • Makefiles
    • Provide an “all” target
  • Clean up your code to eliminate annoying compiler warnings
  • Testing
    • Most people provided weak tests. They provided a sample program that used their test, not an actual test
hw 3 the ugly
HW 3: The Ugly
  • Numerous segfaults, deadlocks, and heap corruption
  • Some people didn’t finish
  • Strange implementations**** where people overcomplicated the project
plug for gdb
Plug for GDB
  • Remember our suggestion to debug with GDB?
    • http://dirac.org/linux/gdb/
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