[lttng-dev] 回复： 回复： some tracepoints not exist in metadata?

[zhenyu.ren]

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.
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发件人：zhenyu.ren via lttng-dev <lttng-dev at lists.lttng.org>
发送时间：2020年7月1日(星期三) 11:44
收件人：lttng-dev <lttng-dev at lists.lttng.org>; mathieu.desnoyers <mathieu.desnoyers at efficios.com>
主　题：[lttng-dev] 回复： some tracepoints not exist in metadata?

I'd like to add that both "lttng list -u" and "lttng list $session_name" can get those tracepoints' names... 
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发件人：zhenyu.ren via lttng-dev <lttng-dev at lists.lttng.org>
发送时间：2020年7月1日(星期三) 11:05
收件人：lttng-dev <lttng-dev at lists.lttng.org>; mathieu.desnoyers <mathieu.desnoyers at efficios.com>
主　题：[lttng-dev] some tracepoints not exist in metadata?

Hi,
   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. 
   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....

Thank you in advance!
zhenyu.ren
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