Em Thu, Aug 25, 2016 at 01:49:41PM +0300, Alexey Dobriyan escreveu: > I profiled kernel allmodconfig build (don't ask) and perf tui reliably > segfaults when trying to enter annotation mode for any of the > individual functions. It segfaults immediately before even showing > menu with choices. > > perf: Segmentation fault > -------- backtrace -------- > perf[0x5451fb] > /lib64/libc.so.6(+0x33290)[0x7fcec0a80290] > perf(__map__is_kernel+0x26)[0x4bbcd6] > perf[0x54287c] > perf(perf_evlist__tui_browse_hists+0x94)[0x543e84] > perf(cmd_report+0x1a34)[0x434884] > perf[0x478471] > perf(main+0x6c6)[0x4237e6] > /lib64/libc.so.6(__libc_start_main+0xf0)[0x7fcec0a6d630] > perf(_start+0x29)[0x4238e9] > > Steps to reproduce: > rm -rf ../xxx > mkdir ../xxx > make O=../xxx ARCH=x86_64 allmodconfig > perf record -e cycles make O=../xxx -k -j5 > perf report > > perf.data is 1.23 GB long , so be prepared.
Thanks for the report, trying to reproduce this. - Arnaldo