It may lead to kernel panic when execute the following testcase on mips:
# cd tools/testing/selftests/ftrace
# ./ftracetest test.d/kprobe/multiple_kprobes.tc
A preliminary analysis shows that the issue is related with
echo 1 > events/kprobes/enable
after add the 256 probe points.
In order to find the root cause, I want to verify which probe point has
problem, so it is necessary to save kprobe_events to test log.
With this patch, we can get the 256 probe points in the test log through
the following command:
# ./ftracetest test.d/kprobe/multiple_kprobes.tc -vvv -k
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
eab691b1a6