Re: register_jprobe always fails with -22
Steven Rostedt <[email protected]>
| Newsgroups | org.kernel.vger.linux-trace-users,org.kernel.vger.linux-trace-devel |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 4 Jul 2019 16:03:42 +0700 Naruto Nguyen <[email protected]> wrote: > Hi everyone, > > I tried to write a sample jprobe as the link > https://bugzilla.redhat.com/show_bug.cgi?id=1275809 (the sample is > attached in the link). However the function register_jprobes always > return -22 or -2. Could you please let me know what these errors means > and how to fix it? Sorry for the really late reply (6 months!), but this email got lost in my inbox, and I just noticed it. In case that you are still wondering about jprobes, they have become obsolete. Registering with the function tracer is now the way to accomplish this. See https://www.kernel.org/doc/Documentation/trace/ftrace-uses.rst -- Steve