Messages in this thread | | | Date | Tue, 9 Oct 2018 23:41:58 +0200 | From | Jiri Olsa <> | Subject | Re: perf report segfault |
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On Tue, Oct 09, 2018 at 03:18:12PM -0500, Anthony LaTorre wrote: > Ok, I can reliably reproduce it by profiling the following program: > > #include <math.h> > > int main(int argc, char **argv) > { > int i; > double sum; > > while (1) { > sum += exp(++i); > } > > return 0; > } > > compiled with: > > $ cc -o test test.c -lm > > with the following command: > > $ perf record -F 99 -p 20016 --call-graph dwarf sleep 10
still nothing.. any chance you could try on latest perf sources?
$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git $ cd linux $ git checkout -b perf/core origin/perf/core $ cd tools/perf $ make $ ./perf ...
you might need some packages mentioned in (search for 'yum install'): https://perf.wiki.kernel.org/index.php/Jolsa_Howto_Install_Sources
it's little outdated, but the packages lists will do
thanks, jirka
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