Messages in this thread | | | Date | Fri, 3 Aug 2018 16:34:55 +0900 | From | Masami Hiramatsu <> | Subject | Re: [PATCH v12 0/3] tracing: Centralize preemptirq tracepoints and unify their usage |
| |
On Thu, 2 Aug 2018 19:57:09 -0700 Joel Fernandes <joelaf@google.com> wrote:
> Hi Masami, > > On Thu, Aug 2, 2018 at 7:55 AM, Masami Hiramatsu <mhiramat@kernel.org> wrote: > > Hi Joel, > > > > I found this caused several issues when testing ftrace. > > > > #1) ftrace boottest (FTRACE_STARTUP_TEST) fails > > This sadly appears to be a real issue. The startup test for > "preemptirqsoff" tracer fails, however it passes for only preemptoff > or only irqsoff. I tested only the last 2 tracers, not the first one, > that's why I didn't catch it. I need to debug this more.
I found that this does not always happen, but 4 out of 5 it happens.
Thank you,
-- Masami Hiramatsu <mhiramat@kernel.org>
| |