создать или включить каналы LTTng (Create or enable LTTng channels)
Ограничения (Limitations)
As of this version of LTTng, it is not possible to perform the
following actions with the lttng enable-channel command:
• Reconfigure a channel once it is created.
• Re-enable a disabled channel once its tracing session has
been active at least once.
• Create a channel once its tracing session has been active at
least once.
• Create a user space channel with a given buffering scheme
(--buffers-uid or --buffers-pid options) and create a second
user space channel with a different buffering scheme in the
same tracing session.
