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From: Masami Hiramatsu <mhiramat@kernel.org>
To: Shuah Khan <shuah@kernel.org>, Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
	Tom Zanussi <tom.zanussi@linux.intel.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Li Philip <philip.li@intel.com>,
	Liu Yiding <yidingx.liu@intel.com>
Subject: [PATCH 2/3] selftests/ftrace: Pick only the first kprobe event to test
Date: Fri,  1 May 2020 22:37:51 +0900	[thread overview]
Message-ID: <158834027133.28357.11196486193798517250.stgit@devnote2> (raw)
In-Reply-To: <158834025077.28357.15141584656220094821.stgit@devnote2>

Since the kprobe/kprobe_args_type.tc reads out all event logs
from the trace buffer, the test can fail if there is another
fork event happens.
Use head command to pick only the first kprobe event from
the trace buffer to test the argument types.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 .../ftrace/test.d/kprobe/kprobe_args_type.tc       |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
index 1bcb67dcae26..81490ecaaa92 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
@@ -38,7 +38,7 @@ for width in 64 32 16 8; do
   echo 0 > events/kprobes/testprobe/enable
 
   : "Confirm the arguments is recorded in given types correctly"
-  ARGS=`grep "testprobe" trace | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+  ARGS=`grep "testprobe" trace | head -n 1 | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
   check_types $ARGS $width
 
   : "Clear event for next loop"


  parent reply	other threads:[~2020-05-01 13:52 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-01 13:37 [PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for dash, etc Masami Hiramatsu
2020-05-01 13:37 ` [PATCH 1/3] selftests/ftrace: Make XFAIL green color Masami Hiramatsu
2020-05-01 14:15   ` Steven Rostedt
2020-05-01 13:37 ` Masami Hiramatsu [this message]
2020-05-01 14:17   ` [PATCH 2/3] selftests/ftrace: Pick only the first kprobe event to test Steven Rostedt
2020-05-01 15:38     ` shuah
2020-05-01 16:20       ` Steven Rostedt
2020-05-01 16:30         ` Shuah Khan
2020-05-02  3:05       ` Masami Hiramatsu
2020-05-01 13:38 ` [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo Masami Hiramatsu
2020-05-01 14:19   ` Steven Rostedt
2020-05-02  3:08     ` Masami Hiramatsu
2020-05-07 13:12       ` Steven Rostedt
2020-05-07 15:50         ` Masami Hiramatsu
2020-05-07 17:25           ` Steven Rostedt
2020-05-07 20:32             ` Zanussi, Tom
2020-05-08  7:11               ` Masami Hiramatsu
2020-05-07  6:45   ` Xiao Yang
2020-05-07  9:15     ` Masami Hiramatsu
2020-05-11  7:22       ` Xiao Yang
2020-05-11  9:27         ` Masami Hiramatsu
2020-05-11 10:34           ` David Laight
2020-05-11 12:01           ` [PATCH] selftests/ftrace: Use /bin/echo for backslash included command Masami Hiramatsu
2020-05-11 12:19             ` Andreas Schwab
2020-05-11 13:36               ` [PATCH v2] selftests/ftrace: Use printf " Masami Hiramatsu
2020-05-11 13:38                 ` Masami Hiramatsu
2020-05-11 13:46                   ` David Laight
2020-05-11 14:05                     ` Masami Hiramatsu
2020-05-11 14:59                   ` David Laight
2020-05-11 20:28                     ` Steven Rostedt
2020-05-11 13:42                 ` Andreas Schwab
2020-05-11 13:58                   ` Masami Hiramatsu
2020-05-25  9:59                 ` Masami Hiramatsu
2020-05-28 16:24                   ` Shuah Khan
2020-05-07  9:22   ` [PATCH 3/3] selftests/ftrace: Use /bin/echo instead of built-in echo Andreas Schwab
2020-05-07 15:52     ` Masami Hiramatsu
2020-05-01 14:21 ` [PATCH 0/3] selftests/ftrace: Fix ftracetest testcases for dash, etc Steven Rostedt
2020-05-01 14:28   ` Shuah Khan

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