Messages in this thread | | | Date | Sat, 21 Jul 2018 18:40:32 +0900 | From | Masami Hiramatsu <> | Subject | Re: [lkp-robot] [tracing] ecadccb31b: kernel_selftests.ftrace.ftracetest.fail |
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Hi,
OK, I'll handle this. The reason why this error is that kprobe event tests probe ftrace itself for test.
On Sat, 21 Jul 2018 10:41:13 +0800 kernel test robot <rong.a.chen@intel.com> wrote:
> > FYI, we noticed the following commit (built with gcc-7): > > commit: ecadccb31b8f1516dd045cc64fc7bc7a2d72947f ("[PATCH 1/2] tracing: kprobes: Prohibit probing on notrace functions") > url: https://github.com/0day-ci/linux/commits/Francis-Deslauriers/tracing-kprobes-Prohibit-probing-on-notrace-functions/20180714-072854 > > > in testcase: kernel_selftests > with following parameters: > > group: kselftests-01 > > test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel. > test-url: https://www.kernel.org/doc/Documentation/kselftest.txt > > > on test machine: 8 threads Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz with 8G memory > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > KERNEL SELFTESTS: linux_headers_dir is /usr/src/linux-headers-x86_64-rhel-7.2-ecadccb31b8f1516dd045cc64fc7bc7a2d72947f > 2018-07-18 22:17:02 ln -sf /usr/bin/clang-7 /usr/bin/clang > 2018-07-18 22:17:02 ln -sf /usr/bin/llc-7 /usr/bin/llc > > 2018-07-18 22:17:47 make run_tests -C ftrace > make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-7.2-ecadccb31b8f1516dd045cc64fc7bc7a2d72947f/tools/testing/selftests/ftrace' > TAP version 13 > selftests: ftrace: ftracetest > ======================================== > === Ftrace unit tests === > [1] Basic trace file check [PASS] > [2] Basic test for tracers [PASS] > [3] Basic trace clock test [PASS] > [4] Basic event tracing check [PASS] > [5] event tracing - enable/disable with event level files [PASS] > [6] event tracing - restricts events based on pid [PASS] > [7] event tracing - enable/disable with subsystem level files [PASS] > [8] event tracing - enable/disable with top level files [PASS] > [9] ftrace - function graph filters with stack tracer [PASS] > [10] ftrace - function graph filters [PASS] > [11] ftrace - function glob filters [PASS] > [12] ftrace - function pid filters [PASS] > [13] ftrace - test for function event triggers [PASS] > [14] ftrace - function profiler with function tracing [PASS] > [15] ftrace - test reading of set_ftrace_filter [PASS] > [16] ftrace - test for function traceon/off triggers [PASS] > [17] Test creation and deletion of trace instances while setting an event [PASS] > [18] Test creation and deletion of trace instances [PASS] > [19] Kprobe dynamic event - adding and removing [PASS] > [20] Kprobe dynamic event - busy event check [PASS] > [21] Kprobe dynamic event with arguments [PASS] > [22] Kprobe event string type argument [FAIL] > [23] Kprobe event argument syntax [PASS] > [24] Kprobes event arguments with types [PASS] > [25] Kprobe event auto/manual naming [PASS] > [26] Kprobe dynamic event with function tracer [PASS] > [27] Kprobe dynamic event - probing module [FAIL] > [28] Kretprobe dynamic event with arguments [PASS] > [29] Kretprobe dynamic event with maxactive [PASS] > [30] Register/unregister many kprobe events [PASS] > [31] Kprobe events - probe points [FAIL] > [32] event trigger - test extended error support [PASS] > [33] event trigger - test field variable support [PASS] > [34] event trigger - test inter-event combined histogram trigger [PASS] > [35] event trigger - test multiple actions on hist trigger [PASS] > [36] event trigger - test inter-event histogram trigger onmatch action [PASS] > [37] event trigger - test inter-event histogram trigger onmatch-onmax action [PASS] > [38] event trigger - test inter-event histogram trigger onmax action [PASS] > [39] event trigger - test synthetic event create remove [PASS] > [40] event trigger - test event enable/disable trigger [PASS] > [41] event trigger - test trigger filter [PASS] > [42] event trigger - test histogram modifiers [PASS] > [43] event trigger - test histogram trigger [PASS] > [44] event trigger - test multiple histogram triggers [PASS] > [45] event trigger - test snapshot-trigger [PASS] > [46] event trigger - test stacktrace-trigger [PASS] > [47] trace_marker trigger - test histogram trigger [PASS] > [48] trace_marker trigger - test snapshot trigger [PASS] > [49] trace_marker trigger - test histogram with synthetic event against kernel event [PASS] > [50] trace_marker trigger - test histogram with synthetic event [PASS] > [51] event trigger - test traceon/off trigger [PASS] > [52] (instance) Basic test for tracers [PASS] > [53] (instance) Basic trace clock test [PASS] > [54] (instance) event tracing - enable/disable with event level files [PASS] > [55] (instance) event tracing - restricts events based on pid [PASS] > [56] (instance) event tracing - enable/disable with subsystem level files [PASS] > [57] (instance) ftrace - test for function event triggers [PASS] > [58] (instance) ftrace - test for function traceon/off triggers [PASS] > [59] (instance) event trigger - test event enable/disable trigger [PASS] > [60] (instance) event trigger - test trigger filter [PASS] > [61] (instance) event trigger - test histogram modifiers [PASS] > [62] (instance) event trigger - test histogram trigger [PASS] > [63] (instance) event trigger - test multiple histogram triggers [PASS] > [64] (instance) trace_marker trigger - test histogram trigger [PASS] > [65] (instance) trace_marker trigger - test snapshot trigger [PASS] > > # of passed: 62 > # of failed: 3 > # of unresolved: 0 > # of untested: 0 > # of unsupported: 0 > # of xfailed: 0 > # of undefined(test bug): 0 > not ok 1..1 selftests: ftrace: ftracetest [FAIL] > make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-7.2-ecadccb31b8f1516dd045cc64fc7bc7a2d72947f/tools/testing/selftests/ftrace' > > > to reproduce: > > git clone https://github.com/intel/lkp-tests.git > cd lkp-tests > bin/lkp install job.yaml # job file is attached in this email > bin/lkp run job.yaml > > > > thanks, > rong, chen
-- Masami Hiramatsu <mhiramat@kernel.org>
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