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Re: [PATCH 11/18] perf script: Switch from perf.data's kallsyms to perf's symbol resolver

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Em Mon, Aug 03, 2015 at 07:41:13PM +0200, Jiri Olsa escreveu:
>     Missing separate debuginfos, use: dnf debuginfo-install glibc-2.21-7.fc22.x86_64
>     [Thread debugging using libthread_db enabled]
>     Using host libthread_db library "/lib64/libthread_db.so.1".
>     Detaching after fork from child process 11230.
>      
>     Program received signal SIGSEGV, Segmentation fault.
>     0x00000000004eeace in pevent_set_function_resolver (pevent=0x0, func=0x4a3197 <machine__resolve_kernel_addr>, priv=0x18e1f48) at event-parse.c:464
>     464             free(pevent->func_resolver);
>     Missing separate debuginfos, use: dnf debuginfo-install audit-libs-2.4.3-1.fc22.x86_64 bzip2-libs-1.0.6-14.fc22.x86_64 elfutils-libelf-0.163-1.fc22.x86_64 elfutils-libs-0.163-1.fc22.x86_64 libunwind-1.1-10.fc22.x86_64 nss-softokn-freebl-3.19.2-1.0.fc22.x86_64 numactl-libs-2.0.10-2.fc22.x86_64 perl-libs-5.20.2-326.fc22.x86_64 python-libs-2.7.10-4.fc22.x86_64 slang-2.3.0-2.fc22.x86_64 xz-libs-5.2.0-2.fc22.x86_64 zlib-1.2.8-7.fc22.x86_64
>     (gdb)

> I think 'session->tevent.pevent' gets initialized only for tracepoint, right?

Reproduced, checking.

- Arnaldo
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[GIT PULL 00/18] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:00 +0200
  [PATCH 01/18] perf test: Check for refcnt in thread_map test Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:00 +0200
  [PATCH 06/18] perf symbols: Add front end cache for DSO symbol lookup Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 12/18] perf tools: Stop reading the kallsyms data from perf.data Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 11/18] perf script: Switch from perf.data's kallsyms to perf's symbol resolver Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
    Re: [PATCH 11/18] perf script: Switch from perf.data's kallsyms to  perf's symbol resolver Jiri Olsa <jolsa@redhat.com> - 2015-08-03 19:50 +0200
      Re: [PATCH 11/18] perf script: Switch from perf.data's kallsyms to  perf's symbol resolver Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-08-03 21:10 +0200
        Re: [PATCH 11/18] perf script: Switch from perf.data's kallsyms to  perf's symbol resolver Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-08-03 21:30 +0200
          Re: [PATCH 11/18] perf script: Switch from perf.data's kallsyms to  perf's symbol resolver Jiri Olsa <jolsa@redhat.com> - 2015-08-03 22:20 +0200
  [PATCH 03/18] perf evlist: Use bool instead of target argument in propagate_maps() Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 18/18] perf script: Add option --show-switch-events Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 16/18] perf record: Add option --switch-events to select PERF_RECORD_SWITCH events Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 07/18] perf symbols: Introduce map__is_(kernel,kmodule)() Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 08/18] tools lib traceevent: Allow setting an alternative symbol resolver Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 13/18] perf tools: Stop copying kallsyms into the perf.data file header Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 15/18] perf tools: Add new PERF_RECORD_SWITCH event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 17/18] perf script: Don't assume evsel position of tracking events Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 09/18] perf symbols: Provide libtraceevent callback to resolve kernel symbols Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 14/18] perf: Add PERF_RECORD_SWITCH to indicate context switches Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200
  [PATCH 05/18] perf header: Use argv style storage for cmdline feature data Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-07-24 04:10 +0200

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