Messages in this thread | | | From | Alexey Dobriyan <> | Date | Tue, 30 Aug 2016 13:00:50 +0300 | Subject | Re: perf-4.8.0-rc3: Segmentation fault |
| |
On Mon, Aug 29, 2016 at 11:02 PM, Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com> wrote: > Em Mon, Aug 29, 2016 at 11:44:50AM -0300, Arnaldo Carvalho de Melo escreveu: >> 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. > > So, I built the kernel with my normal .config, using your command line and got:
I've lost vmlinux and can't recreate it anymore. Oh well.
| |