| Message ID | 20220209162430.286578-1-krzysztof.kozlowski@canonical.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | selftests/ftrace: Do not trace do_softirq because of PREEMPT_RT | expand |
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc index e96e279e0533..1d0c7601865f 100644 --- a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc @@ -19,7 +19,7 @@ fail() { # mesg FILTER=set_ftrace_filter FUNC1="schedule" -FUNC2="do_softirq" +FUNC2="_printk" ALL_FUNCS="#### all functions enabled ####"
The PREEMPT_RT patchset does not use soft IRQs thus trying to filter for do_softirq fails for such kernel: echo do_softirq ftracetest: 81: echo: echo: I/O error Choose some other externally visible function for the test. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> --- I understand that the failure does not exist on mainline kernel (only with PREEMPT_RT patchset) but the change does not harm it. If it is not suitable alone, please consider it for RT patchset. --- .../selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)