Re: Wrong Perf Backtraces

Thanks. But should I attach the files to the e-mail?

On 2020-03-25 23:28, Arnaldo Carvalho de Melo wrote:

> Em Wed, Mar 25, 2020 at 04:46:43PM +0100, Jiri Olsa escreveu: On Wed, 
> Mar 25, 2020 at 07:48:39PM +0430, ahmadkhorrami wrote: Hi,
> 
> Could you give me some hints about where the actual problem takes 
> place? Is
> the problem with "Perf" or the hardware part (i.e., "Hardware 
> Performance
> Counters")? Can I revise the problem by simply modifying the code? How 
> much
> work is needed?
> heya,
> might be some callchain processing bug, but I can't reproduce it on my 
> setup..
> would you have/make some simple example that would reproduce the issue?
> 
> Another option is that you'd send perf.data together with 'perf 
> archive' data.
> 
> Also.. we support 2 dwarf unwinders (libunwind/libdw).. not sure which 
> one you
> have compiled in, but would be helpful to see if the other shows the 
> same.

perf -vv

+

ldd `which perf`

Output will help us find out which unwinder is being used, as well as
the version of perf being used.

- Arnaldo