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Groups > linux.kernel > #1271870
| From | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH perf/core 07/13] perf: Fix to destroy kernel maps when machine exits |
| Date | 2015-11-18 07:50 +0100 |
| Message-ID | <qw4J3-7HS-7@gated-at.bofh.it> (permalink) |
| References | <qw4J3-7HS-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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[PATCH perf/core 07/13] perf: Fix to destroy kernel maps when machine exits Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-11-18 07:50 +0100 [tip:perf/core] perf machine: Fix to destroy kernel maps when machine exits tip-bot for Masami Hiramatsu <tipbot@zytor.com> - 2015-11-23 17:20 +0100
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