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Re: socket-trace.stp: no match while resolving probe point kernel.function("*@net/socket.c")


Hi:

Thank you for reply. I found it pretty strange that if I do not use
"*@net/socket.c" but use function in socket.c directly such as
sock_create. SystemTap can work well and trace all the calls of
fuction sock_create. I don't know why...

Dongtao

2008/10/24 Mark Wielaard <mjw@redhat.com>:
> Hi Dongtao,
>
> On Thu, 2008-10-23 at 23:00 -0400, Dongtao Liu wrote:
>> I install systemtap in my new Ubuntu 2.6.24-19 system and try to run
>> the examples in tutorial. The hello word and strace-open work well,
>> however the third example socket-trace has some problems.
>
> I don't immediately see why this is failing, and I don't have an ubuntu
> install around. It seems you followed
> http://sourceware.org/systemtap/wiki/SystemtapOnUbuntu correctly. And it
> is strange that trace-open.stp does work, but socket-trace.stp doesn't.
>
> Are there other examples (http://sourceware.org/systemtap/examples/)
> that do/don't work?
>
> Maybe you can try running the testsuite (make installcheck would be
> ideal) and/or upgrading to a newer systemtap (either the last release
> 0.7.3 or current git http://sourceware.org/systemtap/getinvolved.html)
> to see if that gives more hints of what is going wrong in this case.
>
> Cheers,
>
> Mark
>
>


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