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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: trace_pipe and trace_marker
# flags: instance
[ ! -f trace_marker ] && exit_unsupported
echo "test input 1" > trace_marker
: "trace interface never consume the ring buffer"
grep -q "test input 1" trace
grep -q "test input 1" trace
: "trace interface never consume the ring buffer"
head -n 1 trace_pipe | grep -q "test input 1"
! grep -q "test input 1" trace
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