<div class="__aliyun_email_body_block"><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">Ah, I have to say that I use the wildcard in tracepoint name when enable-event to the channel, i.e. ./lttng enable-event -u system_event* -c channel0 -s misc_data. Of course, there are the other tracepoints with wildcard succeed in registring.</span></div><blockquote  style="margin-right:0;margin-top:0;margin-bottom:0;"><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">------------------------------------------------------------------</span></div><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">发件人：zhenyu.ren via lttng-dev <lttng-dev@lists.lttng.org></span></div><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">发送时间：2020年7月1日(星期三) 11:44</span></div><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">收件人：lttng-dev <lttng-dev@lists.lttng.org>; mathieu.desnoyers <mathieu.desnoyers@efficios.com></span></div><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">主　题：[lttng-dev] 回复： some tracepoints not exist in metadata?</span></div><div  style="clear:both;"><span  style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;"><br /></span></div><div  style="clear:both;"><font  color="#000000" face="Tahoma, Arial, STHeiti, SimSun">I'd like to add that </font><span  class=" __aliyun_node_has_color" style="color:#000000;font-family:Tahoma,Arial,STHeiti,SimSun;">both "lttng list -u" and "lttng list $session_name" can get those tracepoints' names... </span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">------------------------------------------------------------------</span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">发件人：zhenyu.ren via lttng-dev <lttng-dev@lists.lttng.org></span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">发送时间：2020年7月1日(星期三) 11:05</span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">收件人：lttng-dev <lttng-dev@lists.lttng.org>; mathieu.desnoyers <mathieu.desnoyers@efficios.com></span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">主　题：[lttng-dev] some tracepoints not exist in metadata?</span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;"><br /></span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">Hi,</span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;">   I find sometimes there are some tracepoints not exist in metadata file(but they are in the list of lttng list -u) and the end result is  they can NOT be logged. I can not always reproduce it. It bothered me for 2 days. </span></div><div  style="clear:both;"><span  class=" __aliyun_node_has_color __aliyun_node_has_color" style="font-family:Tahoma,Arial,STHeiti,SimSun;font-size:14.0px;color:#000000;"></span>   The lttng version is 2.7, I know it is not the latest version but there are some reasons I can't update it. So, is this a known bug?  If yes, It will be very appreciated if you can give me any advice about the bug info(I can cherry pick the correspond fix). Otherwise, maybe I have to give up my favoriate Lttng....</div><div  style="clear:both;"><br ></div><div  style="clear:both;">Thank you in advance!</div><div  style="clear:both;">zhenyu.ren</div></blockquote></div>