[PATCH 23/37] perf machine: Fix to destroy kernel maps when machine exits
From: Arnaldo Carvalho de Melo
Date: Thu Nov 19 2015 - 13:02:25 EST
From: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/20151118064024.30709.43577.stgit@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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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