Redirecting stdout to build/X86/tests/opt/quick/se/00.hello/x86/linux/simple-atomic/simout Redirecting stderr to build/X86/tests/opt/quick/se/00.hello/x86/linux/simple-atomic/simerr gem5 Simulator System. http://gem5.org gem5 is copyrighted software; use the --copyright option for details. gem5 compiled Apr 3 2017 19:05:53 gem5 started Apr 3 2017 19:06:21 gem5 executing on gabeblack-desktop.mtv.corp.google.com, pid 87156 command line: /usr/local/google/home/gabeblack/gem5/gem5-public/build/X86/gem5.opt -d build/X86/tests/opt/quick/se/00.hello/x86/linux/simple-atomic --stats-file 'text://stats.txt?desc=False' -re /usr/local/google/home/gabeblack/gem5/gem5-public/tests/testing/../run.py quick/se/00.hello/x86/linux/simple-atomic Global frequency set at 1000000000000 ticks per second Hello world! Exiting @ tick 5615000 because exiting with last active thread context