** Summary changed:
- ftrace in ubuntu_kernel_selftests failed with "check if duplicate events are
caught" on J-5.15 P9 / J-kvm / L-kvm
+ ftrace in ubuntu_kernel_selftests failed with "check if duplicate events are
caught" on J-kvm / L-kvm
** Description changed:
+ (Thibf got this issue fixed for KVM kernels, for PPC please refer to bug
+ 2026592)
+
Issue found on Jammy 5.15.0-36.37 with Power9 node baltar
Test failed with:
# [15] Generic dynamic event - check if duplicate events are caught [FAIL]
Test Log:
- make: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
- TAP version 13
- 1..1
- # 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] Change the ringbuffer size [PASS]
- # [6] Snapshot and tracing setting [PASS]
- # [7] trace_pipe and trace_marker [PASS]
- # [8] Test ftrace direct functions against tracers [UNRESOLVED]
- # [9] Test ftrace direct functions against kprobes [UNRESOLVED]
- # [10] Generic dynamic event - add/remove eprobe events [PASS]
- # [11] Generic dynamic event - add/remove kprobe events [PASS]
- # [12] Generic dynamic event - add/remove synthetic events [PASS]
- # [13] Generic dynamic event - selective clear (compatibility) [PASS]
- # [14] Generic dynamic event - generic clear event [PASS]
- # [15] Generic dynamic event - check if duplicate events are caught [FAIL]
- # [16] event tracing - enable/disable with event level files [PASS]
- # [17] event tracing - restricts events based on pid notrace filtering
[PASS]
- # [18] event tracing - restricts events based on pid [PASS]
- # [19] event tracing - enable/disable with subsystem level files [PASS]
- # [20] event tracing - enable/disable with top level files [PASS]
- # [21] Test trace_printk from module [PASS]
- # [22] ftrace - function graph filters with stack tracer [PASS]
- # [23] ftrace - function graph filters [PASS]
- # [24] ftrace - function pid notrace filters [PASS]
- # [25] ftrace - function pid filters [PASS]
- # [26] ftrace - stacktrace filter command [PASS]
- # [27] ftrace - function trace with cpumask [PASS]
- # [28] ftrace - test for function event triggers [PASS]
- # [29] ftrace - function trace on module [PASS]
- # [30] ftrace - function profiling [PASS]
- # [31] ftrace - function profiler with function tracing [PASS]
- # [32] ftrace - test reading of set_ftrace_filter [PASS]
- # [33] ftrace - test for function traceon/off triggers [PASS]
- # [34] ftrace - test tracing error log support [PASS]
- # [35] Test creation and deletion of trace instances while setting an event
[PASS]
- # [36] Test creation and deletion of trace instances [PASS]
- # [37] Kprobe dynamic event - adding and removing [PASS]
- # [38] Kprobe dynamic event - busy event check [PASS]
- # [39] Kprobe dynamic event with arguments [PASS]
- # [40] Kprobe event with comm arguments [PASS]
- # [41] Kprobe event string type argument [PASS]
- # [42] Kprobe event symbol argument [PASS]
- # [43] Kprobe event argument syntax [PASS]
- # [44] Kprobes event arguments with types [PASS]
- # [45] Kprobe event user-memory access [UNSUPPORTED]
- # [46] Kprobe event auto/manual naming [PASS]
- # [47] Kprobe dynamic event with function tracer [PASS]
- # [48] Create/delete multiprobe on kprobe event [PASS]
- # [49] Kprobe event parser error log check [PASS]
- # [50] Kretprobe dynamic event with arguments [PASS]
- # [51] Kretprobe dynamic event with maxactive [PASS]
- # [52] Kretprobe %return suffix test [PASS]
- # [53] Register/unregister many kprobe events [PASS]
- # [54] Kprobe profile [PASS]
- # [55] Uprobe event parser error log check [PASS]
- # [56] test for the preemptirqsoff tracer [UNSUPPORTED]
- # [57] Meta-selftest: Checkbashisms [PASS]
- # [58] Test wakeup tracer [PASS]
- # [59] Test wakeup RT tracer [PASS]
- # [60] event trigger - test inter-event histogram trigger expected fail
actions [XFAIL]
- # [61] event trigger - test field variable support [PASS]
- # [62] event trigger - test multiple actions on hist trigger [PASS]
- # [63] event trigger - test inter-event histogram trigger onchange action
[PASS]
- # [64] event trigger - test inter-event histogram trigger onmatch action
[PASS]
- # [65] event trigger - test inter-event histogram trigger onmatch-onmax
action [PASS]
- # [66] event trigger - test inter-event histogram trigger onmax action
[PASS]
- # [67] event trigger - test inter-event histogram trigger snapshot action
[PASS]
- # [68] event trigger - test inter-event histogram trigger eprobe on
synthetic event [PASS]
- # [69] event trigger - test inter-event histogram trigger trace action with
dynamic string param [PASS]
- # [70] event trigger - test synthetic_events syntax parser [PASS]
- # [71] event trigger - test synthetic_events syntax parser errors [PASS]
- # [72] event trigger - test inter-event histogram trigger trace action
[PASS]
- # [73] event trigger - test event enable/disable trigger [PASS]
- # [74] event trigger - test trigger filter [PASS]
- # [75] event trigger - test histogram modifiers [PASS]
- # [76] event trigger - test histogram parser errors [PASS]
- # [77] event trigger - test multiple histogram triggers [PASS]
- # [78] event trigger - test snapshot-trigger [PASS]
- # [79] event trigger - test stacktrace-trigger [PASS]
- # [80] trace_marker trigger - test snapshot trigger [PASS]
- # [81] trace_marker trigger - test histogram with synthetic event against
kernel event [PASS]
- # [82] trace_marker trigger - test histogram with synthetic event [PASS]
- # [83] event trigger - test traceon/off trigger [PASS]
- # [84] (instance) Basic test for tracers [PASS]
- # [85] (instance) Basic trace clock test [PASS]
- # [86] (instance) Change the ringbuffer size [PASS]
- # [87] (instance) Snapshot and tracing setting [PASS]
- # [88] (instance) trace_pipe and trace_marker [PASS]
- # [89] (instance) event tracing - enable/disable with event level files
[PASS]
- # [90] (instance) event tracing - restricts events based on pid notrace
filtering [PASS]
- # [91] (instance) event tracing - restricts events based on pid [PASS]
- # [92] (instance) event tracing - enable/disable with subsystem level files
[PASS]
- # [93] (instance) ftrace - function pid notrace filters [PASS]
- # [94] (instance) ftrace - function pid filters [PASS]
- # [95] (instance) ftrace - stacktrace filter command [PASS]
- # [96] (instance) ftrace - test for function event triggers [PASS]
- # [97] (instance) ftrace - test for function traceon/off triggers [PASS]
- # [98] (instance) event trigger - test event enable/disable trigger [PASS]
- # [99] (instance) event trigger - test trigger filter [PASS]
- # [100] (instance) event trigger - test histogram modifiers [PASS]
- # [101] (instance) event trigger - test multiple histogram triggers [PASS]
- # [102] (instance) trace_marker trigger - test snapshot trigger [PASS]
- #
- #
- # # of passed: 96
- # # of failed: 1
- # # of unresolved: 2
- # # of untested: 0
- # # of unsupported: 2
- # # of xfailed: 1
- # # of undefined(test bug): 0
- not ok 1 selftests: ftrace: ftracetest # exit=1
+ make: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
+ TAP version 13
+ 1..1
+ # 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] Change the ringbuffer size [PASS]
+ # [6] Snapshot and tracing setting [PASS]
+ # [7] trace_pipe and trace_marker [PASS]
+ # [8] Test ftrace direct functions against tracers [UNRESOLVED]
+ # [9] Test ftrace direct functions against kprobes [UNRESOLVED]
+ # [10] Generic dynamic event - add/remove eprobe events [PASS]
+ # [11] Generic dynamic event - add/remove kprobe events [PASS]
+ # [12] Generic dynamic event - add/remove synthetic events [PASS]
+ # [13] Generic dynamic event - selective clear (compatibility) [PASS]
+ # [14] Generic dynamic event - generic clear event [PASS]
+ # [15] Generic dynamic event - check if duplicate events are caught [FAIL]
+ # [16] event tracing - enable/disable with event level files [PASS]
+ # [17] event tracing - restricts events based on pid notrace filtering
[PASS]
+ # [18] event tracing - restricts events based on pid [PASS]
+ # [19] event tracing - enable/disable with subsystem level files [PASS]
+ # [20] event tracing - enable/disable with top level files [PASS]
+ # [21] Test trace_printk from module [PASS]
+ # [22] ftrace - function graph filters with stack tracer [PASS]
+ # [23] ftrace - function graph filters [PASS]
+ # [24] ftrace - function pid notrace filters [PASS]
+ # [25] ftrace - function pid filters [PASS]
+ # [26] ftrace - stacktrace filter command [PASS]
+ # [27] ftrace - function trace with cpumask [PASS]
+ # [28] ftrace - test for function event triggers [PASS]
+ # [29] ftrace - function trace on module [PASS]
+ # [30] ftrace - function profiling [PASS]
+ # [31] ftrace - function profiler with function tracing [PASS]
+ # [32] ftrace - test reading of set_ftrace_filter [PASS]
+ # [33] ftrace - test for function traceon/off triggers [PASS]
+ # [34] ftrace - test tracing error log support [PASS]
+ # [35] Test creation and deletion of trace instances while setting an event
[PASS]
+ # [36] Test creation and deletion of trace instances [PASS]
+ # [37] Kprobe dynamic event - adding and removing [PASS]
+ # [38] Kprobe dynamic event - busy event check [PASS]
+ # [39] Kprobe dynamic event with arguments [PASS]
+ # [40] Kprobe event with comm arguments [PASS]
+ # [41] Kprobe event string type argument [PASS]
+ # [42] Kprobe event symbol argument [PASS]
+ # [43] Kprobe event argument syntax [PASS]
+ # [44] Kprobes event arguments with types [PASS]
+ # [45] Kprobe event user-memory access [UNSUPPORTED]
+ # [46] Kprobe event auto/manual naming [PASS]
+ # [47] Kprobe dynamic event with function tracer [PASS]
+ # [48] Create/delete multiprobe on kprobe event [PASS]
+ # [49] Kprobe event parser error log check [PASS]
+ # [50] Kretprobe dynamic event with arguments [PASS]
+ # [51] Kretprobe dynamic event with maxactive [PASS]
+ # [52] Kretprobe %return suffix test [PASS]
+ # [53] Register/unregister many kprobe events [PASS]
+ # [54] Kprobe profile [PASS]
+ # [55] Uprobe event parser error log check [PASS]
+ # [56] test for the preemptirqsoff tracer [UNSUPPORTED]
+ # [57] Meta-selftest: Checkbashisms [PASS]
+ # [58] Test wakeup tracer [PASS]
+ # [59] Test wakeup RT tracer [PASS]
+ # [60] event trigger - test inter-event histogram trigger expected fail
actions [XFAIL]
+ # [61] event trigger - test field variable support [PASS]
+ # [62] event trigger - test multiple actions on hist trigger [PASS]
+ # [63] event trigger - test inter-event histogram trigger onchange action
[PASS]
+ # [64] event trigger - test inter-event histogram trigger onmatch action
[PASS]
+ # [65] event trigger - test inter-event histogram trigger onmatch-onmax
action [PASS]
+ # [66] event trigger - test inter-event histogram trigger onmax action
[PASS]
+ # [67] event trigger - test inter-event histogram trigger snapshot action
[PASS]
+ # [68] event trigger - test inter-event histogram trigger eprobe on
synthetic event [PASS]
+ # [69] event trigger - test inter-event histogram trigger trace action with
dynamic string param [PASS]
+ # [70] event trigger - test synthetic_events syntax parser [PASS]
+ # [71] event trigger - test synthetic_events syntax parser errors [PASS]
+ # [72] event trigger - test inter-event histogram trigger trace action
[PASS]
+ # [73] event trigger - test event enable/disable trigger [PASS]
+ # [74] event trigger - test trigger filter [PASS]
+ # [75] event trigger - test histogram modifiers [PASS]
+ # [76] event trigger - test histogram parser errors [PASS]
+ # [77] event trigger - test multiple histogram triggers [PASS]
+ # [78] event trigger - test snapshot-trigger [PASS]
+ # [79] event trigger - test stacktrace-trigger [PASS]
+ # [80] trace_marker trigger - test snapshot trigger [PASS]
+ # [81] trace_marker trigger - test histogram with synthetic event against
kernel event [PASS]
+ # [82] trace_marker trigger - test histogram with synthetic event [PASS]
+ # [83] event trigger - test traceon/off trigger [PASS]
+ # [84] (instance) Basic test for tracers [PASS]
+ # [85] (instance) Basic trace clock test [PASS]
+ # [86] (instance) Change the ringbuffer size [PASS]
+ # [87] (instance) Snapshot and tracing setting [PASS]
+ # [88] (instance) trace_pipe and trace_marker [PASS]
+ # [89] (instance) event tracing - enable/disable with event level files
[PASS]
+ # [90] (instance) event tracing - restricts events based on pid notrace
filtering [PASS]
+ # [91] (instance) event tracing - restricts events based on pid [PASS]
+ # [92] (instance) event tracing - enable/disable with subsystem level files
[PASS]
+ # [93] (instance) ftrace - function pid notrace filters [PASS]
+ # [94] (instance) ftrace - function pid filters [PASS]
+ # [95] (instance) ftrace - stacktrace filter command [PASS]
+ # [96] (instance) ftrace - test for function event triggers [PASS]
+ # [97] (instance) ftrace - test for function traceon/off triggers [PASS]
+ # [98] (instance) event trigger - test event enable/disable trigger [PASS]
+ # [99] (instance) event trigger - test trigger filter [PASS]
+ # [100] (instance) event trigger - test histogram modifiers [PASS]
+ # [101] (instance) event trigger - test multiple histogram triggers [PASS]
+ # [102] (instance) trace_marker trigger - test snapshot trigger [PASS]
+ #
+ #
+ # # of passed: 96
+ # # of failed: 1
+ # # of unresolved: 2
+ # # of untested: 0
+ # # of unsupported: 2
+ # # of xfailed: 1
+ # # of undefined(test bug): 0
+ not ok 1 selftests: ftrace: ftracetest # exit=1
This is not a regression, I can see this issue with 5.15.0-30.31 as well.
We just don't have a bug report for this.
** Changed in: linux (Ubuntu)
Status: In Progress => Invalid
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https://bugs.launchpad.net/bugs/1977827
Title:
ftrace in ubuntu_kernel_selftests failed with "check if duplicate
events are caught" on J-kvm / L-kvm
Status in ubuntu-kernel-tests:
Fix Committed
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Fix Released
Status in linux source package in Kinetic:
Fix Committed
Status in linux source package in Lunar:
Fix Released
Bug description:
(Thibf got this issue fixed for KVM kernels, for PPC please refer to
bug 2026592)
Issue found on Jammy 5.15.0-36.37 with Power9 node baltar
Test failed with:
# [15] Generic dynamic event - check if duplicate events are caught [FAIL]
Test Log:
make: Entering directory
'/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
TAP version 13
1..1
# 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] Change the ringbuffer size [PASS]
# [6] Snapshot and tracing setting [PASS]
# [7] trace_pipe and trace_marker [PASS]
# [8] Test ftrace direct functions against tracers [UNRESOLVED]
# [9] Test ftrace direct functions against kprobes [UNRESOLVED]
# [10] Generic dynamic event - add/remove eprobe events [PASS]
# [11] Generic dynamic event - add/remove kprobe events [PASS]
# [12] Generic dynamic event - add/remove synthetic events [PASS]
# [13] Generic dynamic event - selective clear (compatibility) [PASS]
# [14] Generic dynamic event - generic clear event [PASS]
# [15] Generic dynamic event - check if duplicate events are caught [FAIL]
# [16] event tracing - enable/disable with event level files [PASS]
# [17] event tracing - restricts events based on pid notrace filtering
[PASS]
# [18] event tracing - restricts events based on pid [PASS]
# [19] event tracing - enable/disable with subsystem level files [PASS]
# [20] event tracing - enable/disable with top level files [PASS]
# [21] Test trace_printk from module [PASS]
# [22] ftrace - function graph filters with stack tracer [PASS]
# [23] ftrace - function graph filters [PASS]
# [24] ftrace - function pid notrace filters [PASS]
# [25] ftrace - function pid filters [PASS]
# [26] ftrace - stacktrace filter command [PASS]
# [27] ftrace - function trace with cpumask [PASS]
# [28] ftrace - test for function event triggers [PASS]
# [29] ftrace - function trace on module [PASS]
# [30] ftrace - function profiling [PASS]
# [31] ftrace - function profiler with function tracing [PASS]
# [32] ftrace - test reading of set_ftrace_filter [PASS]
# [33] ftrace - test for function traceon/off triggers [PASS]
# [34] ftrace - test tracing error log support [PASS]
# [35] Test creation and deletion of trace instances while setting an event
[PASS]
# [36] Test creation and deletion of trace instances [PASS]
# [37] Kprobe dynamic event - adding and removing [PASS]
# [38] Kprobe dynamic event - busy event check [PASS]
# [39] Kprobe dynamic event with arguments [PASS]
# [40] Kprobe event with comm arguments [PASS]
# [41] Kprobe event string type argument [PASS]
# [42] Kprobe event symbol argument [PASS]
# [43] Kprobe event argument syntax [PASS]
# [44] Kprobes event arguments with types [PASS]
# [45] Kprobe event user-memory access [UNSUPPORTED]
# [46] Kprobe event auto/manual naming [PASS]
# [47] Kprobe dynamic event with function tracer [PASS]
# [48] Create/delete multiprobe on kprobe event [PASS]
# [49] Kprobe event parser error log check [PASS]
# [50] Kretprobe dynamic event with arguments [PASS]
# [51] Kretprobe dynamic event with maxactive [PASS]
# [52] Kretprobe %return suffix test [PASS]
# [53] Register/unregister many kprobe events [PASS]
# [54] Kprobe profile [PASS]
# [55] Uprobe event parser error log check [PASS]
# [56] test for the preemptirqsoff tracer [UNSUPPORTED]
# [57] Meta-selftest: Checkbashisms [PASS]
# [58] Test wakeup tracer [PASS]
# [59] Test wakeup RT tracer [PASS]
# [60] event trigger - test inter-event histogram trigger expected fail
actions [XFAIL]
# [61] event trigger - test field variable support [PASS]
# [62] event trigger - test multiple actions on hist trigger [PASS]
# [63] event trigger - test inter-event histogram trigger onchange action
[PASS]
# [64] event trigger - test inter-event histogram trigger onmatch action
[PASS]
# [65] event trigger - test inter-event histogram trigger onmatch-onmax
action [PASS]
# [66] event trigger - test inter-event histogram trigger onmax action
[PASS]
# [67] event trigger - test inter-event histogram trigger snapshot action
[PASS]
# [68] event trigger - test inter-event histogram trigger eprobe on
synthetic event [PASS]
# [69] event trigger - test inter-event histogram trigger trace action with
dynamic string param [PASS]
# [70] event trigger - test synthetic_events syntax parser [PASS]
# [71] event trigger - test synthetic_events syntax parser errors [PASS]
# [72] event trigger - test inter-event histogram trigger trace action
[PASS]
# [73] event trigger - test event enable/disable trigger [PASS]
# [74] event trigger - test trigger filter [PASS]
# [75] event trigger - test histogram modifiers [PASS]
# [76] event trigger - test histogram parser errors [PASS]
# [77] event trigger - test multiple histogram triggers [PASS]
# [78] event trigger - test snapshot-trigger [PASS]
# [79] event trigger - test stacktrace-trigger [PASS]
# [80] trace_marker trigger - test snapshot trigger [PASS]
# [81] trace_marker trigger - test histogram with synthetic event against
kernel event [PASS]
# [82] trace_marker trigger - test histogram with synthetic event [PASS]
# [83] event trigger - test traceon/off trigger [PASS]
# [84] (instance) Basic test for tracers [PASS]
# [85] (instance) Basic trace clock test [PASS]
# [86] (instance) Change the ringbuffer size [PASS]
# [87] (instance) Snapshot and tracing setting [PASS]
# [88] (instance) trace_pipe and trace_marker [PASS]
# [89] (instance) event tracing - enable/disable with event level files
[PASS]
# [90] (instance) event tracing - restricts events based on pid notrace
filtering [PASS]
# [91] (instance) event tracing - restricts events based on pid [PASS]
# [92] (instance) event tracing - enable/disable with subsystem level files
[PASS]
# [93] (instance) ftrace - function pid notrace filters [PASS]
# [94] (instance) ftrace - function pid filters [PASS]
# [95] (instance) ftrace - stacktrace filter command [PASS]
# [96] (instance) ftrace - test for function event triggers [PASS]
# [97] (instance) ftrace - test for function traceon/off triggers [PASS]
# [98] (instance) event trigger - test event enable/disable trigger [PASS]
# [99] (instance) event trigger - test trigger filter [PASS]
# [100] (instance) event trigger - test histogram modifiers [PASS]
# [101] (instance) event trigger - test multiple histogram triggers [PASS]
# [102] (instance) trace_marker trigger - test snapshot trigger [PASS]
#
#
# # of passed: 96
# # of failed: 1
# # of unresolved: 2
# # of untested: 0
# # of unsupported: 2
# # of xfailed: 1
# # of undefined(test bug): 0
not ok 1 selftests: ftrace: ftracetest # exit=1
This is not a regression, I can see this issue with 5.15.0-30.31 as well.
We just don't have a bug report for this.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1977827/+subscriptions
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