root daemon or even a Bob daemon. We highly recommend starting the session
daemon at boot time for stable and long term tracing.
-All user-space applications instrumented with lttng-ust(3) will
-automatically register to the session daemon. This feature gives you the
-ability to list available traceable applications and tracepoints on a per user
-basis. (See \fBlist\fP command).
+Each user-space application instrumented with lttng-ust(3) will automatically
+register with the root session daemon and its user session daemon. This allows
+each daemon to list the available traceable applications and tracepoints at any
+given moment (See the \fBlist\fP command).
.SH "OPTIONS"
.PP
.BR "\-\-syscall"
System call event. Enabling syscalls tracing (kernel tracer), you will
not be able to disable them with disable-event. This is a known
-limitation. You can disable the entire channel to do the trick.
+limitation. You can disable the entire channel to do the trick. Also note
+that per-syscall selection is not supported yet. Use with "-a" to enable
+all syscalls.
.TP
.BR "\-\-filter 'expression'"
Set a filter on a newly enabled event. Filter expression on event
Disable tracing channel
Disabling a channel disables the tracing of all of the channel's events. A channel
-can be reenabled by calling \fBlttng enable-channel NAME\fP again.
+can be re-enabled by calling \fBlttng enable-channel NAME\fP again.
If \fB\-s, \-\-session\fP is omitted, the session name is taken from the .lttngrc
file.
.TP
.BR "\-\-list-options"
Simple listing of options
-.TP "\-\-no-wait"
+.TP
+.BR "\-\-no-wait"
Don't wait for data availability.
.RE
.PP