Messages in this thread | | | Subject | Re: perf report warnings on tracepoint events hidden by ui | From | David Ahern <> | Date | Thu, 27 Apr 2017 20:13:43 -0600 |
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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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