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
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