3 ms·

For debugging purposes, for example? You might be interested in https://rr-project.org https://rr-project.org.

• throwaway2048 7y ago
  rr isn't going to work on a kernel.
  • Hello71 7y ago
    I'm inclined to say that it will work on User Mode Linux, and it looks like QEMU does have record/replay functionality.
    • loeg 7y ago
      Yes, it works as long as you don't have any real devices that cannot be captured in a reverse-debugger's state history.
    • ndesaulniers 7y ago
      That won't help with data races in drivers. MMIO can even race and isn't well specified.