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[Bug 1830084] Re: ubuntu_kernel_selftests ftrace fails

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Jürg Häfliger <1830084@xxxxxxxxxxxxxxxxxx>
Date: Thu, 17 Apr 2025 22:48:30 -0000
Reply-to: Bug 1830084 <1830084@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1830084

Title:
  ubuntu_kernel_selftests ftrace fails

Status in ubuntu-kernel-tests:
  Invalid
Status in linux-aws package in Ubuntu:
  New
Status in linux-azure package in Ubuntu:
  Confirmed
Status in linux-gcp package in Ubuntu:
  New
Status in linux-oracle package in Ubuntu:
  New
Status in linux-aws source package in Disco:
  Won't Fix
Status in linux-azure source package in Disco:
  Won't Fix
Status in linux-gcp source package in Disco:
  Won't Fix
Status in linux-oracle source package in Disco:
  Won't Fix
Status in linux-aws source package in Eoan:
  Won't Fix
Status in linux-azure source package in Eoan:
  Won't Fix
Status in linux-gcp source package in Eoan:
  Won't Fix
Status in linux-oracle source package in Eoan:
  Won't Fix

Bug description:
  Cloud: Azure
  Series: Disco
  Kernel: 5.0.0-1007.7 	linux-azure
  Instance: Standard_D2_v3 and others. 

  05/20 14:24:27 DEBUG|     utils:0116| Running 'sudo sh -c 'echo 1 > /proc/sys/net/ipv4/conf/all/accept_local''
  05/20 14:24:27 DEBUG|     utils:0116| Running 'sudo make -C linux/tools/testing/selftests TARGETS=ftrace run_tests'
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] make: Entering directory '/home/azure/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] make[1]: Entering directory '/home/azure/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] make[1]: Nothing to be done for 'all'.
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] make[1]: Leaving directory '/home/azure/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] make[1]: Entering directory '/home/azure/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] TAP version 13
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] selftests: ftrace: ftracetest
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] ========================================
  05/20 14:24:27 ERROR|     utils:0153| [stderr] ./ftracetest: 163: [: Illegal number: 
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] -e === Ftrace unit tests ===
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] -e -n [1] Basic trace file check
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:27 DEBUG|     utils:0153| [stdout] -e -n [2] Basic test for tracers
  05/20 14:24:31 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:31 DEBUG|     utils:0153| [stdout] -e -n [3] Basic trace clock test
  05/20 14:24:32 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:32 DEBUG|     utils:0153| [stdout] -e -n [4] Basic event tracing check
  05/20 14:24:32 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:32 DEBUG|     utils:0153| [stdout] -e -n [5] Change the ringbuffer size
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e -n [6] Snapshot and tracing setting
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e -n [7] trace_pipe and trace_marker
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e -n [8] Generic dynamic event - add/remove kprobe events
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e -n [9] Generic dynamic event - add/remove synthetic events
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:33 DEBUG|     utils:0153| [stdout] -e -n [10] Generic dynamic event - selective clear (compatibility)
  05/20 14:24:34 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:34 DEBUG|     utils:0153| [stdout] -e -n [11] Generic dynamic event - generic clear event
  05/20 14:24:34 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:34 DEBUG|     utils:0153| [stdout] -e -n [12] event tracing - enable/disable with event level files
  05/20 14:24:34 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:34 DEBUG|     utils:0153| [stdout] -e -n [13] event tracing - restricts events based on pid
  05/20 14:24:35 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:35 DEBUG|     utils:0153| [stdout] -e -n [14] event tracing - enable/disable with subsystem level files
  05/20 14:24:35 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:35 DEBUG|     utils:0153| [stdout] -e -n [15] event tracing - enable/disable with top level files
  05/20 14:24:35 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:35 DEBUG|     utils:0153| [stdout] -e -n [16] Test trace_printk from module
  05/20 14:24:36 DEBUG|     utils:0153| [stdout] -e 	[UNRESOLVED]
  05/20 14:24:36 DEBUG|     utils:0153| [stdout] -e -n [17] ftrace - function graph filters with stack tracer
  05/20 14:24:38 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:38 DEBUG|     utils:0153| [stdout] -e -n [18] ftrace - function graph filters
  05/20 14:24:40 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:40 DEBUG|     utils:0153| [stdout] -e -n [19] ftrace - function pid filters
  05/20 14:24:41 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:41 DEBUG|     utils:0153| [stdout] -e -n [20] ftrace - stacktrace filter command
  05/20 14:24:42 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:42 DEBUG|     utils:0153| [stdout] -e -n [21] ftrace - function trace with cpumask
  05/20 14:24:42 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:42 DEBUG|     utils:0153| [stdout] -e -n [22] ftrace - test for function event triggers
  05/20 14:24:46 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:46 DEBUG|     utils:0153| [stdout] -e -n [23] ftrace - function trace on module
  05/20 14:24:46 DEBUG|     utils:0153| [stdout] -e 	[UNRESOLVED]
  05/20 14:24:46 DEBUG|     utils:0153| [stdout] -e -n [24] ftrace - function profiling
  05/20 14:24:49 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:49 DEBUG|     utils:0153| [stdout] -e -n [25] ftrace - function profiler with function tracing
  05/20 14:24:53 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:53 DEBUG|     utils:0153| [stdout] -e -n [26] ftrace - test reading of set_ftrace_filter
  05/20 14:24:54 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:54 DEBUG|     utils:0153| [stdout] -e -n [27] ftrace - test for function traceon/off triggers
  05/20 14:24:56 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:56 DEBUG|     utils:0153| [stdout] -e -n [28] Test creation and deletion of trace instances while setting an event
  05/20 14:24:59 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:24:59 DEBUG|     utils:0153| [stdout] -e -n [29] Test creation and deletion of trace instances
  05/20 14:25:00 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:00 DEBUG|     utils:0153| [stdout] -e -n [30] Kprobe dynamic event - adding and removing
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e -n [31] Kprobe dynamic event - busy event check
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e -n [32] Kprobe dynamic event with arguments
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e -n [33] Kprobe event with comm arguments
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:01 DEBUG|     utils:0153| [stdout] -e -n [34] Kprobe event string type argument
  05/20 14:25:02 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:02 DEBUG|     utils:0153| [stdout] -e -n [35] Kprobe event symbol argument
  05/20 14:25:02 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:02 DEBUG|     utils:0153| [stdout] -e -n [36] Kprobe event argument syntax
  05/20 14:25:03 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:03 DEBUG|     utils:0153| [stdout] -e -n [37] Kprobes event arguments with types
  05/20 14:25:03 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:03 DEBUG|     utils:0153| [stdout] -e -n [38] Kprobe event auto/manual naming
  05/20 14:25:04 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:04 DEBUG|     utils:0153| [stdout] -e -n [39] Kprobe dynamic event with function tracer
  05/20 14:25:04 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:04 DEBUG|     utils:0153| [stdout] -e -n [40] Kretprobe dynamic event with arguments
  05/20 14:25:05 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:05 DEBUG|     utils:0153| [stdout] -e -n [41] Kretprobe dynamic event with maxactive
  05/20 14:25:05 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:05 DEBUG|     utils:0153| [stdout] -e -n [42] Register/unregister many kprobe events
  05/20 14:25:30 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:30 DEBUG|     utils:0153| [stdout] -e -n [43] Kprobe dynamic event - adding and removing
  05/20 14:25:30 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:30 DEBUG|     utils:0153| [stdout] -e -n [44] test for the preemptirqsoff tracer
  05/20 14:25:31 DEBUG|     utils:0153| [stdout] -e 	[UNSUPPORTED]
  05/20 14:25:31 DEBUG|     utils:0153| [stdout] -e -n [45] Test wakeup tracer
  05/20 14:25:32 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:32 DEBUG|     utils:0153| [stdout] -e -n [46] Test wakeup RT tracer
  05/20 14:25:34 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:34 DEBUG|     utils:0153| [stdout] -e -n [47] event trigger - test extended error support
  05/20 14:25:34 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:34 DEBUG|     utils:0153| [stdout] -e -n [48] event trigger - test field variable support
  05/20 14:25:37 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:37 DEBUG|     utils:0153| [stdout] -e -n [49] event trigger - test multiple actions on hist trigger
  05/20 14:25:37 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:37 DEBUG|     utils:0153| [stdout] -e -n [50] event trigger - test inter-event histogram trigger onmatch action
  05/20 14:25:42 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:42 DEBUG|     utils:0153| [stdout] -e -n [51] event trigger - test inter-event histogram trigger onmatch-onmax action
  05/20 14:25:47 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:47 DEBUG|     utils:0153| [stdout] -e -n [52] event trigger - test inter-event histogram trigger onmax action
  05/20 14:25:49 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:49 DEBUG|     utils:0153| [stdout] -e -n [53] event trigger - test synthetic_events syntax parser
  05/20 14:25:50 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:50 DEBUG|     utils:0153| [stdout] -e -n [54] event trigger - test event enable/disable trigger
  05/20 14:25:50 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:50 DEBUG|     utils:0153| [stdout] -e -n [55] event trigger - test trigger filter
  05/20 14:25:51 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:51 DEBUG|     utils:0153| [stdout] -e -n [56] event trigger - test histogram modifiers
  05/20 14:25:51 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:51 DEBUG|     utils:0153| [stdout] -e -n [57] event trigger - test multiple histogram triggers
  05/20 14:25:51 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:51 DEBUG|     utils:0153| [stdout] -e -n [58] event trigger - test snapshot-trigger
  05/20 14:25:52 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:52 DEBUG|     utils:0153| [stdout] -e -n [59] event trigger - test stacktrace-trigger
  05/20 14:25:52 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:52 DEBUG|     utils:0153| [stdout] -e -n [60] trace_marker trigger - test snapshot trigger
  05/20 14:25:52 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:52 DEBUG|     utils:0153| [stdout] -e -n [61] trace_marker trigger - test histogram with synthetic event against kernel event
  05/20 14:25:54 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:54 DEBUG|     utils:0153| [stdout] -e -n [62] trace_marker trigger - test histogram with synthetic event
  05/20 14:25:54 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:54 DEBUG|     utils:0153| [stdout] -e -n [63] event trigger - test traceon/off trigger
  05/20 14:25:55 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:55 DEBUG|     utils:0153| [stdout] -e -n [64] (instance)  Basic test for tracers
  05/20 14:25:57 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:57 DEBUG|     utils:0153| [stdout] -e -n [65] (instance)  Basic trace clock test
  05/20 14:25:58 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:58 DEBUG|     utils:0153| [stdout] -e -n [66] (instance)  Change the ringbuffer size
  05/20 14:25:58 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:58 DEBUG|     utils:0153| [stdout] -e -n [67] (instance)  Snapshot and tracing setting
  05/20 14:25:58 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:59 DEBUG|     utils:0153| [stdout] -e -n [68] (instance)  trace_pipe and trace_marker
  05/20 14:25:59 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:59 DEBUG|     utils:0153| [stdout] -e -n [69] (instance)  event tracing - enable/disable with event level files
  05/20 14:25:59 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:25:59 DEBUG|     utils:0153| [stdout] -e -n [70] (instance)  event tracing - restricts events based on pid
  05/20 14:25:59 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:00 DEBUG|     utils:0153| [stdout] -e -n [71] (instance)  event tracing - enable/disable with subsystem level files
  05/20 14:26:00 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:00 DEBUG|     utils:0153| [stdout] -e -n [72] (instance)  ftrace - stacktrace filter command
  05/20 14:26:01 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:01 DEBUG|     utils:0153| [stdout] -e -n [73] (instance)  ftrace - test for function event triggers
  05/20 14:26:04 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:04 DEBUG|     utils:0153| [stdout] -e -n [74] (instance)  ftrace - test for function traceon/off triggers
  05/20 14:26:06 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:06 DEBUG|     utils:0153| [stdout] -e -n [75] (instance)  event trigger - test event enable/disable trigger
  05/20 14:26:06 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:06 DEBUG|     utils:0153| [stdout] -e -n [76] (instance)  event trigger - test trigger filter
  05/20 14:26:07 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:07 DEBUG|     utils:0153| [stdout] -e -n [77] (instance)  event trigger - test histogram modifiers
  05/20 14:26:07 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:07 DEBUG|     utils:0153| [stdout] -e -n [78] (instance)  event trigger - test multiple histogram triggers163: [: Illegal number: 
  05/20 14:26:07 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:07 DEBUG|     utils:0153| [stdout] -e -n [79] (instance)  trace_marker trigger - test snapshot trigger
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e 	[PASS]
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] 
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] 
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e 
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of passed:  76
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of failed:  0
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of unresolved:  2
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of untested:  0
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of unsupported:  1
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of xfailed:  0
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] -e # of undefined(test bug):  0
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] not ok 1..1 selftests: ftrace: ftracetest [FAIL]
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] make[1]: Leaving directory '/home/azure/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  05/20 14:26:08 DEBUG|     utils:0153| [stdout] make: Leaving directory '/home/azure/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
  05/20 14:26:08 ERROR|      test:0414| Exception escaping from test:
  Traceback (most recent call last):
    File "/home/azure/autotest/client/shared/test.py", line 411, in _exec
      _call_test_function(self.execute, *p_args, **p_dargs)
    File "/home/azure/autotest/client/shared/test.py", line 823, in _call_test_function
      return func(*args, **dargs)
    File "/home/azure/autotest/client/shared/test.py", line 291, in execute
      postprocess_profiled_run, args, dargs)
    File "/home/azure/autotest/client/shared/test.py", line 212, in _call_run_once
      self.run_once(*args, **dargs)
    File "/home/azure/autotest/client/tests/ubuntu_kernel_selftests/ubuntu_kernel_selftests.py", line 149, in run_once
      raise error.TestError('Test failed for ' + test_name)
  TestError: Test failed for ftrace

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