Re: systemtap, anyone?

Hi Cristian,

Check If you have installed kernel debuginfo (kernel-default-debuginfo-*.rpm) package. 

PS: [email protected] has better experts for these types of questions.

-Arun

>>> On 8/1/2007 at 7:55 AM, Cristian Veronesi <[email protected]> wrote:
> Has anyone tried to use systemtap on SUSE SLES10? I was able to run a
> simple "hello world" script but I always get errors when trying to
> access kernel functions. For example, this script:
> 
> <<<
> global reads
> 
> probe begin {
>   printf("probe beginning\n")
> }
> 
> probe syscall.read {
>   reads [execname()] <<< count
> }
> 
> probe end {
>   foreach (prog_name in reads) {
>     printf("Name: %s, # Reads: %d, Total Bytes: %d, Avg: %d\n",
>             prog_name, @count(reads[prog_name]),
>             @sum(reads[prog_name]), @avg(reads[prog_name]))
>   }
> }
>>>>
> 
> Gives the following error:
> 
> semantic error: libdwfl failure (dwfl_linux_kernel_report_offline): No
> such file or directory while resolving probe point
> kernel.function("sys_read")
> semantic error: no match for probe point while resolving probe point
> syscall.read
> Pass 2: analysis failed.  Try again with more '-v' (verbose) options.
> 
> Am I missing some package?
> 
> Thank you. Kind regards,





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