| From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 23/37] perf machine: Fix to destroy kernel maps when machine exits | Date | Thu, 19 Nov 2015 14:53:09 -0300 |
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From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Actually machine__exit forgot to call machine__destroy_kernel_maps.
This fixes some memory leaks on map as below.
Without this fix. ---- ./perf probe vfs_read Added new event: probe:vfs_read (on vfs_read)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_read -aR sleep 1
REFCNT: BUG: Unreclaimed objects found. REFCNT: Total 4 objects are not reclaimed. To see all backtraces, rerun with -v option ---- With this fix. ---- ./perf probe vfs_read Added new event: probe:vfs_read (on vfs_read)
You can now use it in all perf tools, such as:
perf record -e probe:vfs_read -aR sleep 1
REFCNT: BUG: Unreclaimed objects found. REFCNT: Total 2 objects are not reclaimed. To see all backtraces, rerun with -v option ----
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20151118064024.30709.43577.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/machine.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index e9e09bee221c..a358771fe9e3 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -122,6 +122,7 @@ void machine__delete_threads(struct machine *machine) void machine__exit(struct machine *machine) { + machine__destroy_kernel_maps(machine); map_groups__exit(&machine->kmaps); dsos__exit(&machine->dsos); machine__exit_vdso(machine); -- 2.1.0
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