Commit-ID: ec3948451e0ba317e66873b48d6cc51d701d4eb0 Gitweb: https://git.kernel.org/tip/ec3948451e0ba317e66873b48d6cc51d701d4eb0 Author: Andi Kleen <ak@xxxxxxxxxxxxxxx> AuthorDate: Fri, 6 Apr 2018 13:38:11 -0700 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Wed, 18 Apr 2018 15:35:49 -0300 perf record: Remove misleading error suggestion When perf record encounters an error setting up an event it suggests to enable CONFIG_PERF_EVENTS. This is misleading because: - Usually it is enabled (it is really hard to disable on x86) - The problem is usually somewhere else, e.g. the CPU is not supported or an invalid configuration has been used. Remove the misleading suggestion. Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx> Link: http://lkml.kernel.org/r/20180406203812.3087-4-andi@xxxxxxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- tools/perf/util/evsel.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 1ac8d9236efd..66b62570c855 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2894,8 +2894,7 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target, return scnprintf(msg, size, "The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n" - "/bin/dmesg may provide additional information.\n" - "No CONFIG_PERF_EVENTS=y kernel support configured?", + "/bin/dmesg | grep -i perf may provide additional information.\n", err, str_error_r(err, sbuf, sizeof(sbuf)), perf_evsel__name(evsel)); } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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