Messages in this thread Patch in this message | | | Subject | [PATCH perf/core 07/13] perf: Fix to destroy kernel maps when machine exits | From | Masami Hiramatsu <> | Date | Wed, 18 Nov 2015 15:40:24 +0900 |
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Actually machine__exit forgot to call machine__destroy_kernel_maps. So this fixes to call it. 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> --- 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 7c647d3..15282df 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -121,6 +121,7 @@ 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);
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