stap semantic error on PPC64 running Red Hat Enterprise Linux AS 4 Update 4

stap semantic error on PPC64 running Red Hat Enterprise Linux AS 4 Update 4

[S. P. Prasanna]

Hi,

I get the following error "semantic error:
 duplicate probe point pattern" while running the tapset present
in /usr/share/systemtap/tapset/process.stp on PPC64.
Is the same error seen on other architectures too?
Am I missing something?
Details about the rpm's installed and error messges is as below.


Thanks
Prasanna

RPMs included are:

# rpm -qa |grep systemtap
systemtap-0.5.8-1.EL4
# rpm -qa |grep elf
elfutils-0.97.1-3
elfutils-0.97.1-3
elfutils-libelf-0.97.1-3
elfutils-devel-0.97.1-3
elfutils-libelf-0.97.1-3
elfutils-libelf-devel-0.97.1-3
# rpm -qa |grep kernel
kernel-debuginfo-2.6.9-42.EL
kernel-doc-2.6.9-42.EL
kernel-utils-2.4-13.1.83
kernel-devel-2.6.9-42.EL
kernel-2.6.9-42.EL
kernel-largesmp-devel-2.6.9-42.EL
kernel-utils-2.4-13.1.83
# uname -a
Linux metelorhel 2.6.9-42.EL #1 SMP Wed Jul 12 23:22:51 EDT 2006 ppc64
ppc64 ppc64 GNU/Linux

********ERROR -MESSAGE*********
# stap -g -v -p2 /usr/share/systemtap/tapset/process.stp
Pass 1: parsed user script and 25 library script(s) in
230usr/0sys/239real ms.
while: registering probe alias process.create =
kernel.function("copy_process").return
semantic error: duplicate probe point pattern
while: registering probe alias process.start =
kernel.function("schedule_tail")
semantic error: duplicate probe point pattern
while: registering probe alias process.exec =
kernel.function("do_execve"), kernel.function("compat_do_execve")?
semantic error: duplicate probe point pattern
while: registering probe alias process.exec_complete =
kernel.function("do_execve").return,
kernel.function("compat_do_execve").return?
semantic error: duplicate probe point pattern
while: registering probe alias process.exit = kernel.function("do_exit")
semantic error: duplicate probe point pattern
while: registering probe alias process.release =
kernel.function("release_task")
semantic error: duplicate probe point pattern
while: registering probe alias process.signal_send =
_process.signal_send.*
semantic error: duplicate probe point pattern
while: registering probe alias _process.signal_send.part1 =
kernel.function("__group_send_sig_info"),
kernel.function("send_group_sigqueue")
semantic error: duplicate probe point pattern
while: registering probe alias _process.signal_send.part2 =
kernel.function("send_sigqueue")
semantic error: duplicate probe point pattern
while: registering probe alias _process.signal_send.part3 =
kernel.function("specific_send_sig_info")
semantic error: duplicate probe point pattern
while: registering probe alias process.signal_handle =
kernel.function("handle_signal")?, kernel.inline("handle_signal")?
semantic error: duplicate probe point pattern
Pass 2: analyzed script: 0 probe(s), 1 function(s), 0 global(s) in
0usr/0sys/5real ms.
Pass 2: analysis failed.  Try again with more '-v' (verbose) options.

-- 
Prasanna S.P.
Linux Technology Center
India Software Labs, IBM Bangalore
Email: prasanna@in.ibm.com
Ph: 91-80-41776329

RE: stap semantic error on PPC64 running Red Hat Enterprise Linux AS 4 Update 4

[Stone, Joshua I]

On Thursday, September 21, 2006 4:55 PM, S. P. Prasanna wrote:
> Hi,
> 
> I get the following error "semantic error:
>  duplicate probe point pattern" while running the tapset present
> in /usr/share/systemtap/tapset/process.stp on PPC64.
> Is the same error seen on other architectures too?
> Am I missing something?
> Details about the rpm's installed and error messges is as below.

Tapsets are not scripts, and should not be run directly.  If you want to
play with probes in the process tapset, just write a simple script that
calls one of the aliases.  There's an example in the CVS tree:
	src/examples/small_demos/proc_snoop.stp


Josh