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Re: perf report warnings on tracepoint events hidden by ui

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On 4/27/17 7:41 PM, Steven Rostedt wrote:
> On Thu, 27 Apr 2017 19:31:12 -0500
> David Carrillo-Cisneros <davidcc@google.com> wrote:
> 
>> When processing tracepoint events, perf report outputs warnings about
>> field not founds. The warnings are usually hidden by perf report UI
>> and appear when using the --stdio option. e.g.
>>
>>   $ perf record -e syscalls:sys_enter_mmap some_load

'-e syscalls' vs raw_syscalls suggests an older kernel -- like RHEL6.


See the note I put into tools/perf/builtin-trace.c:

static struct perf_evsel *perf_evsel__syscall_newtp(const char
*direction, void *handler)
{
        struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls",
direction);

        /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */
        if (IS_ERR(evsel))
                evsel = perf_evsel__newtp("syscalls", direction);


Are you running top of tree perf on RHEL6?

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Thread

perf report warnings on tracepoint events hidden by ui David Carrillo-Cisneros <davidcc@google.com> - 2017-04-28 02:40 +0200
  Re: perf report warnings on tracepoint events hidden by ui Steven Rostedt <rostedt@goodmis.org> - 2017-04-28 03:50 +0200
    Re: perf report warnings on tracepoint events hidden by ui David Ahern <dsahern@gmail.com> - 2017-04-28 04:20 +0200
      Re: perf report warnings on tracepoint events hidden by ui Steven Rostedt <rostedt@goodmis.org> - 2017-04-28 04:50 +0200
        Re: perf report warnings on tracepoint events hidden by ui David Ahern <dsahern@gmail.com> - 2017-04-28 05:00 +0200
          Re: perf report warnings on tracepoint events hidden by ui Steven Rostedt <rostedt@goodmis.org> - 2017-04-28 05:00 +0200
    Re: perf report warnings on tracepoint events hidden by ui David Carrillo-Cisneros <davidcc@google.com> - 2017-04-30 19:40 +0200
  Re: perf report warnings on tracepoint events hidden by ui Namhyung Kim <namhyung@kernel.org> - 2017-04-28 05:10 +0200
    Re: perf report warnings on tracepoint events hidden by ui David Carrillo-Cisneros <davidcc@google.com> - 2017-04-30 19:40 +0200

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