linux-kernel - [PATCH 7/7] perf test: Create kernel maps properly for hist entries test

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Message-Id: <1449131658-1841-8-git-send-email-jolsa@kernel.org>
Date:	Thu,  3 Dec 2015 09:34:18 +0100
From:	Jiri Olsa <jolsa@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	HIRAMATU，MASAMI 
	<masami.hiramatsu.pt@...achi.com>, Wang Nan <wangnan0@...wei.com>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 7/7] perf test: Create kernel maps properly for hist entries test

It fixes segfault within machine__exit, that's caused
but not creating kernel maps for machine.. We're calling
machine__destroy_kernel_maps in machine__exit since commit:

  ebe9729c8c31 perf machine: Fix to destroy kernel maps when machine exits

Link: http://lkml.kernel.org/n/tip-k4snzv5t4dvdckggzwdzyljo@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/tests/hists_common.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/perf/tests/hists_common.c b/tools/perf/tests/hists_common.c
index ce80b274b097..6ccdc8ac9578 100644
--- a/tools/perf/tests/hists_common.c
+++ b/tools/perf/tests/hists_common.c
@@ -87,6 +87,11 @@ struct machine *setup_fake_machine(struct machines *machines)
 		return NULL;
 	}
 
+	if (machine__create_kernel_maps(machine)) {
+		pr_debug("Not enough memory for machine setup\n");
+		goto out_maps;
+	}
+
 	for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
 		struct thread *thread;
 
@@ -149,6 +154,8 @@ struct machine *setup_fake_machine(struct machines *machines)
 
 out:
 	pr_debug("Not enough memory for machine setup\n");
+
+out_maps:
 	machine__delete_threads(machine);
 	machine__delete(machine);
 	return NULL;
-- 
2.4.3

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