** Description changed: == Justification == When running the ftrace in ubunut_kernel_selftests, the "Kprobe event string type argument" test will fail on Bionic / Cosmic i386: [22] Kprobe event string type argument [FAIL] This is because the test was trying to probe a notrace function. # grep create_trace_kprobe /sys/kernel/debug/tracing/available_filter_functions - == Fix == 6fc7c411 (selftests/ftrace: Fix kprobe string testcase to not probe notrace function) - This will change the event to trace in the test. + This will change the event to trace in the test, from + create_trace_kprobe to tracefs_create_dir Patch can be cherry-picked for Cosmic. For Bionic and Xenial, it can be cherry-picked after the commit 9855c462 for bug 1812809. Although we don't run this ftrace test in Xenial, it will still be a plus to fix this. It's already been applied in D. This patch belongs to a patchset [1], in which further limits kprobe- events probing on notrace function. To address this issue for the testing tool this one will be suffice. [1] https://lkml.org/lkml/2018/7/30/257 == Test == Patch tested with Bionic / Cosmic i386. Test passed as expected: [22] Kprobe event string type argument [PASS] == Regression potential == None. This patch is just for the kernel testing tool. == Original bug report == Failure spotted on Bionic / Cosmic i386 (node fozzie) [22] Kprobe event string type argument [FAIL] 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] Snapshot and tracing setting [PASS] [6] event tracing - enable/disable with event level files [PASS] [7] event tracing - restricts events based on pid [PASS] [8] event tracing - enable/disable with subsystem level files [PASS] [9] event tracing - enable/disable with top level files [PASS] [10] ftrace - function graph filters with stack tracer [PASS] [11] ftrace - function graph 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] Kretprobe dynamic event with arguments [PASS] [28] Kretprobe dynamic event with maxactive [PASS] [29] Register/unregister many kprobe events [PASS] [30] event trigger - test extended error support [PASS] [31] event trigger - test field variable support [PASS] [32] event trigger - test multiple actions on hist trigger [PASS] [33] event trigger - test inter-event histogram trigger onmatch action [PASS] [34] event trigger - test inter-event histogram trigger onmatch-onmax action [PASS] [35] event trigger - test inter-event histogram trigger onmax action [PASS] [36] event trigger - test synthetic_events syntax parser [PASS] [37] event trigger - test event enable/disable trigger [PASS] [38] event trigger - test trigger filter [PASS] [39] event trigger - test histogram modifiers [PASS] [40] event trigger - test multiple histogram triggers [PASS] [41] event trigger - test snapshot-trigger [PASS] [42] event trigger - test stacktrace-trigger [PASS] [43] trace_marker trigger - test snapshot trigger [PASS] [44] trace_marker trigger - test histogram with synthetic event against kernel event [PASS] [45] trace_marker trigger - test histogram with synthetic event [PASS] [46] event trigger - test traceon/off trigger [PASS] [47] (instance) Basic test for tracers [PASS] [48] (instance) Basic trace clock test [PASS] [49] (instance) Snapshot and tracing setting [PASS] [50] (instance) event tracing - enable/disable with event level files [PASS] [51] (instance) event tracing - restricts events based on pid [PASS] [52] (instance) event tracing - enable/disable with subsystem level files [PASS] [53] (instance) ftrace - test for function event triggers [PASS] [54] (instance) ftrace - test for function traceon/off triggers [PASS] [55] (instance) event trigger - test event enable/disable trigger [PASS] [56] (instance) event trigger - test trigger filter [PASS] [57] (instance) event trigger - test histogram modifiers [PASS] [58] (instance) event trigger - test multiple histogram triggers [PASS] [59] (instance) trace_marker trigger - test snapshot trigger [PASS] # of passed: 58 # of failed: 1 # 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]
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1825780 Title: Kprobe event string type argument failed in ftrace from ubuntu_kernel_selftests on B/C i386 Status in ubuntu-kernel-tests: In Progress Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: In Progress Status in linux source package in Bionic: In Progress Status in linux source package in Cosmic: In Progress Bug description: == Justification == When running the ftrace in ubunut_kernel_selftests, the "Kprobe event string type argument" test will fail on Bionic / Cosmic i386: [22] Kprobe event string type argument [FAIL] This is because the test was trying to probe a notrace function. # grep create_trace_kprobe /sys/kernel/debug/tracing/available_filter_functions == Fix == 6fc7c411 (selftests/ftrace: Fix kprobe string testcase to not probe notrace function) This will change the event to trace in the test, from create_trace_kprobe to tracefs_create_dir Patch can be cherry-picked for Cosmic. For Bionic and Xenial, it can be cherry-picked after the commit 9855c462 for bug 1812809. Although we don't run this ftrace test in Xenial, it will still be a plus to fix this. It's already been applied in D. This patch belongs to a patchset [1], in which further limits kprobe- events probing on notrace function. To address this issue for the testing tool this one will be suffice. [1] https://lkml.org/lkml/2018/7/30/257 == Test == Patch tested with Bionic / Cosmic i386. Test passed as expected: [22] Kprobe event string type argument [PASS] == Regression potential == None. This patch is just for the kernel testing tool. == Original bug report == Failure spotted on Bionic / Cosmic i386 (node fozzie) [22] Kprobe event string type argument [FAIL] 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] Snapshot and tracing setting [PASS] [6] event tracing - enable/disable with event level files [PASS] [7] event tracing - restricts events based on pid [PASS] [8] event tracing - enable/disable with subsystem level files [PASS] [9] event tracing - enable/disable with top level files [PASS] [10] ftrace - function graph filters with stack tracer [PASS] [11] ftrace - function graph 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] Kretprobe dynamic event with arguments [PASS] [28] Kretprobe dynamic event with maxactive [PASS] [29] Register/unregister many kprobe events [PASS] [30] event trigger - test extended error support [PASS] [31] event trigger - test field variable support [PASS] [32] event trigger - test multiple actions on hist trigger [PASS] [33] event trigger - test inter-event histogram trigger onmatch action [PASS] [34] event trigger - test inter-event histogram trigger onmatch-onmax action [PASS] [35] event trigger - test inter-event histogram trigger onmax action [PASS] [36] event trigger - test synthetic_events syntax parser [PASS] [37] event trigger - test event enable/disable trigger [PASS] [38] event trigger - test trigger filter [PASS] [39] event trigger - test histogram modifiers [PASS] [40] event trigger - test multiple histogram triggers [PASS] [41] event trigger - test snapshot-trigger [PASS] [42] event trigger - test stacktrace-trigger [PASS] [43] trace_marker trigger - test snapshot trigger [PASS] [44] trace_marker trigger - test histogram with synthetic event against kernel event [PASS] [45] trace_marker trigger - test histogram with synthetic event [PASS] [46] event trigger - test traceon/off trigger [PASS] [47] (instance) Basic test for tracers [PASS] [48] (instance) Basic trace clock test [PASS] [49] (instance) Snapshot and tracing setting [PASS] [50] (instance) event tracing - enable/disable with event level files [PASS] [51] (instance) event tracing - restricts events based on pid [PASS] [52] (instance) event tracing - enable/disable with subsystem level files [PASS] [53] (instance) ftrace - test for function event triggers [PASS] [54] (instance) ftrace - test for function traceon/off triggers [PASS] [55] (instance) event trigger - test event enable/disable trigger [PASS] [56] (instance) event trigger - test trigger filter [PASS] [57] (instance) event trigger - test histogram modifiers [PASS] [58] (instance) event trigger - test multiple histogram triggers [PASS] [59] (instance) trace_marker trigger - test snapshot trigger [PASS] # of passed: 58 # of failed: 1 # 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] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1825780/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
