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[Bug 1923683] Re: ftrace from ubuntu_kernel_selftests failed with "test for function event triggers" on F/G/H/I

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Brian Murray <1923683@xxxxxxxxxxxxxxxxxx>
Date: Thu, 25 Jul 2024 22:30:14 -0000
Reply-to: Bug 1923683 <1923683@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Ubuntu 22.10 (Kinetic Kudu) has reached end of life, so this bug will
not be fixed for that specific release.

** Changed in: linux (Ubuntu Kinetic)
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1923683

Title:
  ftrace from ubuntu_kernel_selftests failed with "test for function
  event triggers" on F/G/H/I

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Focal:
  Confirmed
Status in linux source package in Groovy:
  Won't Fix
Status in linux source package in Hirsute:
  Won't Fix
Status in linux source package in Impish:
  Won't Fix
Status in linux source package in Kinetic:
  Won't Fix

Bug description:
  ftrace from ubuntu_kernel_selftests failed with "test for function
  event triggers" on Groovy riscv 5.8.0-21.23

  This test was recently added, not considering a regression

  Log is getting cut off from regression test report. the below is all
  that could be retrieved at the moment:

  04/13 23:48:00 DEBUG|     utils:0116| Running 'sudo sh -c 'echo 1 > /proc/sys/net/ipv4/conf/all/accept_local''
  04/13 23:48:00 DEBUG|     utils:0116| Running 'sudo make -C linux/tools/testing/selftests TARGETS=ftrace run_tests'
  04/13 23:48:00 DEBUG|     utils:0153| [stdout] make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
  04/13 23:48:01 DEBUG|     utils:0153| [stdout] make --no-builtin-rules ARCH=riscv -C ../../.. headers_install
  04/13 23:48:01 DEBUG|     utils:0153| [stdout] make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
  04/13 23:48:14 DEBUG|     utils:0153| [stdout]   INSTALL ./usr/include
  04/13 23:48:15 DEBUG|     utils:0153| [stdout] make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
  04/13 23:48:15 DEBUG|     utils:0153| [stdout] make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  04/13 23:48:15 DEBUG|     utils:0153| [stdout] make[1]: Nothing to be done for 'all'.
  04/13 23:48:15 DEBUG|     utils:0153| [stdout] make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  04/13 23:48:16 DEBUG|     utils:0153| [stdout] make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/ftrace'
  04/13 23:48:16 DEBUG|     utils:0153| [stdout] TAP version 13
  04/13 23:48:16 DEBUG|     utils:0153| [stdout] 1..1
  04/13 23:48:16 DEBUG|     utils:0153| [stdout] # selftests: ftrace: ftracetest
  04/13 23:48:16 ERROR|     utils:0153| [stderr] perl: warning: Setting locale failed.
  04/13 23:48:16 ERROR|     utils:0153| [stderr] perl: warning: Please check that your locale settings:
  04/13 23:48:16 ERROR|     utils:0153| [stderr] 	LANGUAGE = (unset),
  04/13 23:48:16 ERROR|     utils:0153| [stderr] 	LC_ALL = (unset),
  04/13 23:48:16 ERROR|     utils:0153| [stderr] 	LC_CTYPE = "C.UTF-8",
  04/13 23:48:16 ERROR|     utils:0153| [stderr] 	LANG = "en_US.UTF-8"
  04/13 23:48:16 ERROR|     utils:0153| [stderr]     are supported and installed on your system.
  04/13 23:48:16 ERROR|     utils:0153| [stderr] perl: warning: Falling back to the standard locale ("C").
  04/13 23:48:17 DEBUG|     utils:0153| [stdout] # === Ftrace unit tests ===
  04/13 23:48:21 DEBUG|     utils:0153| [stdout] # [1] Basic trace file check	[PASS]
  04/13 23:49:02 DEBUG|     utils:0153| [stdout] # [2] Basic test for tracers	[PASS]
  04/13 23:49:09 DEBUG|     utils:0153| [stdout] # [3] Basic trace clock test	[PASS]
  04/13 23:49:13 DEBUG|     utils:0153| [stdout] # [4] Basic event tracing check	[PASS]
  04/13 23:49:18 DEBUG|     utils:0153| [stdout] # [5] Change the ringbuffer size	[PASS]
  04/13 23:49:23 DEBUG|     utils:0153| [stdout] # [6] Snapshot and tracing setting	[PASS]
  04/13 23:49:27 DEBUG|     utils:0153| [stdout] # [7] trace_pipe and trace_marker	[PASS]
  04/13 23:49:32 DEBUG|     utils:0153| [stdout] # [8] Test ftrace direct functions against tracers	[UNRESOLVED]
  04/13 23:49:33 DEBUG|     utils:0153| [stdout] # [9] Test ftrace direct functions against kprobes	[UNSUPPORTED]
  04/13 23:49:37 DEBUG|     utils:0153| [stdout] # [10] Generic dynamic event - add/remove kprobe events	[FAIL]
  04/13 23:49:37 DEBUG|     utils:0153| [stdout] # [11] Generic dynamic event - add/remove synthetic events	[UNSUPPORTED]
  04/13 23:49:38 DEBUG|     utils:0153| [stdout] # [12] Generic dynamic event - selective clear (compatibility)	[UNSUPPORTED]
  04/13 23:49:39 DEBUG|     utils:0153| [stdout] # [13] Generic dynamic event - generic clear event	[UNSUPPORTED]
  04/13 23:49:44 DEBUG|     utils:0153| [stdout] # [14] event tracing - enable/disable with event level files	[PASS]
  04/13 23:49:50 DEBUG|     utils:0153| [stdout] # [15] event tracing - restricts events based on pid notrace filtering	[PASS]
  04/13 23:49:56 DEBUG|     utils:0153| [stdout] # [16] event tracing - restricts events based on pid	[PASS]
  04/13 23:50:01 DEBUG|     utils:0153| [stdout] # [17] event tracing - enable/disable with subsystem level files	[PASS]
  04/13 23:50:06 DEBUG|     utils:0153| [stdout] # [18] event tracing - enable/disable with top level files	[PASS]
  04/13 23:50:12 DEBUG|     utils:0153| [stdout] # [19] Test trace_printk from module	[PASS]
  04/13 23:50:30 DEBUG|     utils:0153| [stdout] # [20] ftrace - function graph filters with stack tracer	[PASS]
  04/13 23:50:37 DEBUG|     utils:0153| [stdout] # [21] ftrace - function graph filters	[PASS]
  04/13 23:50:46 DEBUG|     utils:0153| [stdout] # [22] ftrace - function pid notrace filters	[PASS]
  04/13 23:50:55 DEBUG|     utils:0153| [stdout] # [23] ftrace - function pid filters	[PASS]
  04/13 23:51:02 DEBUG|     utils:0153| [stdout] # [24] ftrace - stacktrace filter command	[PASS]
  04/13 23:51:12 DEBUG|     utils:0153| [stdout] # [25] ftrace - function trace with cpumask	[PASS]
  04/13 23:51:26 DEBUG|     utils:0153| [stdout] # [26] ftrace - test for function event triggers	[FAIL]
  04/13 23:51:35 DEBUG|     utils:0153| [stdout] # [27] ftrace - function trace on module	[PASS]

  The second failure "Generic dynamic event - add/remove kprobe events" is reported at:
  https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1923682

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