Next, enable channels, events and add context to channels as usual.
Once a tracing session is created in snapshot mode, channels will be
-forced to use the overwrite mode (`--overwrite` option of the
-`enable-channel` command) and have an `mmap()` channel type
+forced to use the
+[overwrite](#doc-channel-overwrite-mode-vs-discard-mode) mode
+(`--overwrite` option of the `enable-channel` command; also called
+_flight recorder mode_) and have an `mmap()` channel type
(`--output mmap`).
Start tracing. When you're ready to take a snapshot, do: