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Re: Anyone tried SystemTap with the latest RHEL5 Beta refresh
- From: fche at redhat dot com (Frank Ch. Eigler)
- To: Vara Prasad <prasadav at us dot ibm dot com>
- Cc: <systemtap at sources dot redhat dot com>
- Date: 26 Oct 2006 18:08:52 -0400
- Subject: Re: Anyone tried SystemTap with the latest RHEL5 Beta refresh
- References: <4540FE31.9040401@us.ibm.com>
Vara Prasad <prasadav@us.ibm.com> writes:
> One of my colleague tried SystemTap on x86_64 machine got the
> following error
> stap -g ioblock.stp
> while: registering probe alias ioblock.submit =
> kernel.function("submit_bio")
> semantic error: duplicate probe point pattern
> while: registering probe alias ioblock.end = kernel.function("bio_endio")
> [...]
This tends to happen if for some reason duplicate tapsets are found by
systemtap (as might happen if two different versions get installed on
top of each other), or if something is wrong with the x86-64 tapset
code, or if one tries to run a tapset script directly (which would
duplicate the copy later found during tapset search).
My guess is that the latter is the case. One should not in general
run a file under tapset/.
- FChE