2011
c - How to debug a multithreaded hung process in Linux? - Stack Overflow
by sylvainulgwe used echo t > /proc/sysrq-trigger, which logs the stack of all the running process in /var/log/messages.
2009
2008
2006
Linux PR: New Linux Debugger Runs Programs in Reverse
by fakechristhe first bidirectional debugger for compiled programs. A bidirectional debugger allows programmers to run a program backwards in time as well as forwards. The program can be stepped back line-by-line, or rewound to any point in its history.
1970
1
(5 marks)