Running ftracetests on a box that mounted debugfs in two locations made the ftracetests fail. This is because the tests uses a grep of debugfs from the /proc/mounts file to find the debugfs mount point, and then appends "/tracing" to that string to get the tracing directory.
If the debugfs directory is mounted twice, then that grep will return two answers and appending "/tracing" to a string with two lines will not work. Use "head -1" to only take the first mount point found. Signed-off-by: Steven Rostedt <[email protected]> --- tools/testing/selftests/ftrace/ftracetest | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index a8f81c782856..515247601df4 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -82,7 +82,7 @@ parse_opts() { # opts } # Parameters -DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' '` +DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1` TRACING_DIR=$DEBUGFS_DIR/tracing TOP_DIR=`absdir $0` TEST_DIR=$TOP_DIR/test.d -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
