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Hidden Debug Mode Found In AMD Processors

Posted by timothy on from the sooper-seekrit dept.

An anonymous reader writes "A hidden (and hardware password protected, by means of required special values in processor registers) debug mode has been found in AMD processors, and documented by a reverse engineer called Czernobyl on the RCE Forums community today. It enables powerful hardware debugging features long longed for by reverse engineers, such as hardware data-aware conditional breakpoints, and direct hardware 'page guard'-style breakpoints. And the best part is, it's sitting right there in your processor already, just read the details and off you go with the debugging ninja powers!"

7 of 154 comments (clear)

  1. Grab your martini-wodka and get to work by b4dc0d3r · · Score: 0, Offtopic

    +Fravia is dead, long live +Fravia.

    Get an "highball" glass (cylindrical "milk" glass: holds about
    200-285 ml.)
    - Two ice cubes
    - Dry Martini from Martini Rossi (1/3 glass)
    - Wodka Moskowskaia (only russian Wodka will do) (1/3 glass)
    - Schweppes Indian Tonic (1/3) glass
    - Lemon zest (from Malta???)
    - Green Olive (from Tuskany ???)
    Sip slowly, look at the data, meditate, crack anything in sight.

    1. Re:Grab your martini-wodka and get to work by inode_buddha · · Score: 1, Offtopic

      +0rc was one of the better ones, also. Very outdated nowdays but I still have a bunch of his tutorials around here somewhere...

      --
      C|N>K
    2. Re:Grab your martini-wodka and get to work by lxs · · Score: 0, Offtopic

      Offtopic? That's what you get when mentioning sites that closed when your average mod was a mere glint in the milkman's eye.

  2. Re:Czernobyl == Polish Hacker? by devjoe · · Score: 0, Offtopic

    Chernobyl is in the Ukraine, not Poland.

    Whoosh! Sure, the city is, but in this story we are talking about a hacker who lives in Poland who named himself after the infamous Ukraine nuclear disaster site.

  3. Re:Czernobyl == Polish Hacker? by Anonymous Coward · · Score: 0, Offtopic

    But spelling the name with a z (Czernobyl) is Polish.

  4. Re:Czernobyl == Polish Hacker? by Marcx77 · · Score: 0, Offtopic

    Well, it's not as if spelling it with an 'h' is Ukrainian....

  5. Hardware easter eggs by antifoidulus · · Score: 0, Offtopic

    Turns out they implemented an entire flight simulator in hardware :P

    --
    Monstar L