Systemtap user space probing issue - Unknown symbol in module

[Josh Stone]

On 07/18/2016 03:58 AM, buddhika chamith wrote:
> $ sudo stap -e 'probe process("./h264ref").function("*") { printf("hello\n"); }'
> ERROR: Couldn't insert module
> '/tmp/stapsPVPF2/stap_b964ab648506800b700ce82c4e1cf5cd_167937.ko':
> Unknown symbol in module
> WARNING: /usr/bin/staprun exited with status: 1
> Pass 5: run failed.  [man error::pass5]
> Tip: /usr/share/doc/systemtap/README.Debian should help you get started.

Unfortunately, this just means we got ENOENT from the init_module()
syscall, and we don't have more useful information.  But there should be
a line in dmesg that reports the specific symbol in question.