Snapshot Limitations

Snapshots have the following limitations:

• Snapshots are implemented by causing the process to fork. The state saved in a snapshot does not include I/O and forks. In other words, when you clone a snapshot, the I/O that has been done since the snapshot was saved is not undone; likewise, the child processes that have been spawned since the snapshot was saved are not killed.
• The save snapshot command saves the state of the current process only. If you are doing multiprocess debugging, you might want to save a snapshot for each process.
• Snapshots on a multithreaded process are not supported.
• Snapshots are not supported for core file debugging.