On Fri, Nov 07, 2025 at 01:52:05AM +0900, Masami Hiramatsu (Google) wrote: > Hi, > > Beau reported tprobe example in the document does not work on 6.17 > kernel. >
Thanks! I've applied this series locally and tested this. Everything works well in our environment. > > And found it forgot to set tuser->tpoint before calling > tracepoint_user_register() which calls > tracepoint_probe_register_prio_may_exist(tuser->tpoint). > To fix that, I just moved the tuser->tpoint setting line > right before tracepoint_user_register() call [1/2]. > > I also found another issue when I switched enable and disable[2/2]. > Thanks! I've validated no bad dmesg, etc. and can delete the tprobe without issues after we disable it. > I hope this report will help someone to do similar debug by tracing. > I will reference this, it's very useful. For the series: Tested-by: Beau Belgrave <[email protected]> Reviewed-by: Beau Belgrave <[email protected]> Thanks, -Beau > Thank you, > > --- > > Masami Hiramatsu (Google) (2): > tracing: tprobe-events: Fix to register tracepoint correctly > tracing: tprobe-events: Fix to put tracepoint_user when disable the > tprobe > > > kernel/trace/trace_fprobe.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > -- > Masami Hiramatsu (Google) <[email protected]>
