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7d4df089d7
I just hit a segfault when doing `perf report -g srcline`. Valgrind pointed me at this code as the culprit: ==8359== Invalid read of size 8 ==8359== at 0x3096D9: map__rip_2objdump (map.c:430) ==8359== by 0x2FC1A3: match_chain_srcline (callchain.c:645) ==8359== by 0x2FC1A3: match_chain (callchain.c:700) ==8359== by 0x2FC1A3: append_chain (callchain.c:895) ==8359== by 0x2FC1A3: append_chain_children (callchain.c:846) ==8359== by 0x2FF719: callchain_append (callchain.c:944) ==8359== by 0x2FF719: hist_entry__append_callchain (callchain.c:1058) ==8359== by 0x32FA06: iter_add_single_cumulative_entry (hist.c:908) ==8359== by 0x33195C: hist_entry_iter__add (hist.c:1050) ==8359== by 0x258F65: process_sample_event (builtin-report.c:204) ==8359== by 0x30D60C: perf_session__deliver_event (session.c:1310) ==8359== by 0x30D60C: ordered_events__deliver_event (session.c:119) ==8359== by 0x310D12: __ordered_events__flush (ordered-events.c:210) ==8359== by 0x310D12: ordered_events__flush.part.3 (ordered-events.c:277) ==8359== by 0x30DD3C: perf_session__process_user_event (session.c:1349) ==8359== by 0x30DD3C: perf_session__process_event (session.c:1475) ==8359== by 0x30FC3C: __perf_session__process_events (session.c:1867) ==8359== by 0x30FC3C: perf_session__process_events (session.c:1921) ==8359== by 0x25A985: __cmd_report (builtin-report.c:575) ==8359== by 0x25A985: cmd_report (builtin-report.c:1054) ==8359== by 0x2B9A80: run_builtin (perf.c:296) ==8359== Address 0x70 is not stack'd, malloc'd or (recently) free'd This patch fixes the issue. Signed-off-by: Milian Wolff <milian.wolff@kdab.com> [ Remove dependency from another change ] Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yao Jin <yao.jin@linux.intel.com> Cc: kernel-team@lge.com Link: http://lkml.kernel.org/r/20170524062129.32529-2-namhyung@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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| .. | ||
| arch | ||
| bench | ||
| Documentation | ||
| jvmti | ||
| pmu-events | ||
| python | ||
| scripts | ||
| tests | ||
| trace | ||
| ui | ||
| util | ||
| .gitignore | ||
| Build | ||
| builtin-annotate.c | ||
| builtin-bench.c | ||
| builtin-buildid-cache.c | ||
| builtin-buildid-list.c | ||
| builtin-c2c.c | ||
| builtin-config.c | ||
| builtin-data.c | ||
| builtin-diff.c | ||
| builtin-evlist.c | ||
| builtin-ftrace.c | ||
| builtin-help.c | ||
| builtin-inject.c | ||
| builtin-kallsyms.c | ||
| builtin-kmem.c | ||
| builtin-kvm.c | ||
| builtin-list.c | ||
| builtin-lock.c | ||
| builtin-mem.c | ||
| builtin-probe.c | ||
| builtin-record.c | ||
| builtin-report.c | ||
| builtin-sched.c | ||
| builtin-script.c | ||
| builtin-stat.c | ||
| builtin-timechart.c | ||
| builtin-top.c | ||
| builtin-trace.c | ||
| builtin-version.c | ||
| builtin.h | ||
| check-headers.sh | ||
| command-list.txt | ||
| CREDITS | ||
| design.txt | ||
| Makefile | ||
| Makefile.config | ||
| Makefile.perf | ||
| MANIFEST | ||
| perf-archive.sh | ||
| perf-completion.sh | ||
| perf-read-vdso.c | ||
| perf-sys.h | ||
| perf-with-kcore.sh | ||
| perf.c | ||
| perf.h | ||