Messages in this thread | | | Subject | Re: perf seg fault | From | Adrian Hunter <> | Date | Tue, 12 May 2020 17:58:29 +0300 |
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On 12/05/20 5:50 pm, Adrian Hunter wrote: > Hi > > I am getting a seg fault from your perf/core branch, as follows: > > # perf record uname > Linux > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.005 MB perf.data (7 samples) ] > perf: Segmentation fault > Obtained 6 stack frames. > [0x4e75b4] > [0x5d1ad0] > [0x5c9860] > [0x4a6e5c] > [0x5cb39b] > [0x76c89f] > Segmentation fault > > It goes away with --no-bpf-event: > > # perf record --no-bpf-event uname > Linux > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.005 MB perf.data (7 samples) ] > # > > kernel is from the same branch > > # uname -a > Linux buildroot 5.7.0-rc2-00028-g0fdddf5a583a #165 SMP Tue May 12 16:27:53 > EEST 2020 x86_64 GNU/Linux > > # perf version --build-options > perf version 5.6.g0fdddf5a583a > dwarf: [ OFF ] # HAVE_DWARF_SUPPORT > dwarf_getlocations: [ OFF ] # HAVE_DWARF_GETLOCATIONS_SUPPORT > glibc: [ on ] # HAVE_GLIBC_SUPPORT > gtk2: [ OFF ] # HAVE_GTK2_SUPPORT > syscall_table: [ on ] # HAVE_SYSCALL_TABLE_SUPPORT > libbfd: [ on ] # HAVE_LIBBFD_SUPPORT > libelf: [ on ] # HAVE_LIBELF_SUPPORT > libnuma: [ OFF ] # HAVE_LIBNUMA_SUPPORT > numa_num_possible_cpus: [ OFF ] # HAVE_LIBNUMA_SUPPORT > libperl: [ OFF ] # HAVE_LIBPERL_SUPPORT > libpython: [ OFF ] # HAVE_LIBPYTHON_SUPPORT > libslang: [ on ] # HAVE_SLANG_SUPPORT > libcrypto: [ on ] # HAVE_LIBCRYPTO_SUPPORT > libunwind: [ OFF ] # HAVE_LIBUNWIND_SUPPORT > libdw-dwarf-unwind: [ OFF ] # HAVE_DWARF_SUPPORT > zlib: [ OFF ] # HAVE_ZLIB_SUPPORT > lzma: [ OFF ] # HAVE_LZMA_SUPPORT > get_cpuid: [ on ] # HAVE_AUXTRACE_SUPPORT > bpf: [ OFF ] # HAVE_LIBBPF_SUPPORT > aio: [ on ] # HAVE_AIO_SUPPORT > zstd: [ OFF ] # HAVE_ZSTD_SUPPORT > > > Any thoughts? > > Regards > Adrian > >
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