_run_lttng_cmd "$OUTPUT_DEST" "$ERROR_OUTPUT_DEST" \
enable-channel -s $sess_name $channel_name -k --output mmap --overwrite --subbuf-size=$(getconf PAGE_SIZE) --num-subbuf=2
_run_lttng_cmd "$OUTPUT_DEST" "$ERROR_OUTPUT_DEST" \
enable-channel -s $sess_name $channel_name -k --output mmap --overwrite --subbuf-size=$(getconf PAGE_SIZE) --num-subbuf=2