On Tue, 14 Jul 2015 07:38:46 +0000
"Koehrer Mathias (ETAS/ESW5)" [off-list ref] wrote:

quoted

What's the test that was run, and how did it enable function tracing?

The tracing was enabled within an init script using the following bash commands:
    if ! grep -q "/sys/kernel/debug" /proc/mounts; then
        mount -t debugfs nodev /sys/kernel/debug
    fi
    if [ -d /sys/kernel/debug/tracing ]; then
        (
        cd /sys/kernel/debug/tracing
        echo "function" > current_tracer
        echo "1" > tracing_on

        echo "1" > /proc/sys/kernel/ftrace_dump_on_oops
        )
    fi


The test was to reboot the PC permanently (every minute).
The reboot has been initiated by another PC that remotely controls the PC under test.

How reproducible is this?

-- Steve