Public bug reported:
Issue found on O-azure-6.11.0-1003.3
Running './ftracetest -v test.d/ftrace/func_hotplug.tc'
=== Ftrace unit tests ===
[1] ftrace - function trace across cpu hotplug [FAIL]
execute:
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ checkreq
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ grep ^#[ \t]*requires:
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ cut -f2- -d:
+ requires= function:tracer
+ eval check_requires function:tracer
+ check_requires function:tracer
+ p=function:tracer
+ r=function:tracer
+ t=function
+ [ function:tracer != function:tracer ]
+ [ function != function:tracer ]
+ grep -wq function available_tracers
+ initialize_ftrace
+ disable_tracing
+ echo 0
+ reset_tracer
+ echo nop
+ reset_trigger
+ [ -d events/synthetic ]
+ reset_trigger_file events/alarmtimer/alarmtimer_cancel/trigger
events/alarmtimer/alarmtimer_fired/trigger ...
+ read line
+ grep -H :on[^:]*( events/alarmtimer/alarmtimer_cancel/trigger
events/alarmtimer/alarmtimer_fired/trigger ...
+ read line
+ grep -Hv ^# events/alarmtimer/alarmtimer_cancel/trigger
events/alarmtimer/alarmtimer_fired/trigger ..
+ reset_events_filter
+ read line
+ grep -v ^none events/alarmtimer/alarmtimer_cancel/filter
events/alarmtimer/alarmtimer_fired/filter...
+ reset_ftrace_filter
+ [ ! -f set_ftrace_filter ]
+ echo
+ grep -v ^# set_ftrace_filter
+ read t
+ disable_events
+ echo 0
+ clear_dynamic_events
+ again=1
+ stop=1
+ [ 1 -eq 1 ]
+ stop=2
+ [ 2 -gt 10 ]
+ again=2
+ grep -v ^# dynamic_events
+ read line
+ [ 2 -eq 1 ]
+ [ -f set_event_pid ]
+ echo
+ [ -f set_ftrace_pid ]
+ echo
+ [ -f set_ftrace_notrace ]
+ echo
+ [ -f set_graph_function ]
+ echo
+ tee set_graph_function set_graph_notrace
+ [ -f stack_trace_filter ]
+ echo
+ [ -f kprobe_events ]
+ echo
+ [ -f uprobe_events ]
+ echo
+ [ -f synthetic_events ]
+ echo
+ [ -f snapshot ]
+ echo 0
+ [ -f options/pause-on-trace ]
+ echo 1
+ clear_trace
+ echo
+ enable_tracing
+ echo 1
+ .
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ which nproc
/usr/bin/nproc
+ nproc
+ NP=2
+ [ 2 -eq 1 ]
+ [ -f /sys/devices/system/cpu/cpu1/online ]
+ cat /sys/devices/system/cpu/cpu1/online
+ [ 1 = 1 ]
+ cpu=/sys/devices/system/cpu/cpu1
+ break
+ [ -z /sys/devices/system/cpu/cpu1 ]
+ echo 0
+ echo
+ basename /sys/devices/system/cpu/cpu1
+ : Set cpu1 offline/online with function tracer enabled
+ echo function
+ echo 1
+ echo 0
./ftracetest: 38: echo: echo: I/O error
# of passed: 0
# of failed: 1
# of unresolved: 0
# of untested: 0
# of unsupported: 0
# of xfailed: 0
# of undefined(test bug): 0
** Affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
** Tags: 6.11 azure oracular sru-20241028 ubuntu-kselftests-ftrace
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https://bugs.launchpad.net/bugs/2089832
Title:
ftrace:test.d--ftrace--func_hotplug.tc from ubuntu_kselftests_ftrace
failed on O-azure
Status in ubuntu-kernel-tests:
New
Bug description:
Issue found on O-azure-6.11.0-1003.3
Running './ftracetest -v test.d/ftrace/func_hotplug.tc'
=== Ftrace unit tests ===
[1] ftrace - function trace across cpu hotplug [FAIL]
execute:
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ checkreq
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ grep ^#[ \t]*requires:
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ cut -f2- -d:
+ requires= function:tracer
+ eval check_requires function:tracer
+ check_requires function:tracer
+ p=function:tracer
+ r=function:tracer
+ t=function
+ [ function:tracer != function:tracer ]
+ [ function != function:tracer ]
+ grep -wq function available_tracers
+ initialize_ftrace
+ disable_tracing
+ echo 0
+ reset_tracer
+ echo nop
+ reset_trigger
+ [ -d events/synthetic ]
+ reset_trigger_file events/alarmtimer/alarmtimer_cancel/trigger
events/alarmtimer/alarmtimer_fired/trigger ...
+ read line
+ grep -H :on[^:]*( events/alarmtimer/alarmtimer_cancel/trigger
events/alarmtimer/alarmtimer_fired/trigger ...
+ read line
+ grep -Hv ^# events/alarmtimer/alarmtimer_cancel/trigger
events/alarmtimer/alarmtimer_fired/trigger ..
+ reset_events_filter
+ read line
+ grep -v ^none events/alarmtimer/alarmtimer_cancel/filter
events/alarmtimer/alarmtimer_fired/filter...
+ reset_ftrace_filter
+ [ ! -f set_ftrace_filter ]
+ echo
+ grep -v ^# set_ftrace_filter
+ read t
+ disable_events
+ echo 0
+ clear_dynamic_events
+ again=1
+ stop=1
+ [ 1 -eq 1 ]
+ stop=2
+ [ 2 -gt 10 ]
+ again=2
+ grep -v ^# dynamic_events
+ read line
+ [ 2 -eq 1 ]
+ [ -f set_event_pid ]
+ echo
+ [ -f set_ftrace_pid ]
+ echo
+ [ -f set_ftrace_notrace ]
+ echo
+ [ -f set_graph_function ]
+ echo
+ tee set_graph_function set_graph_notrace
+ [ -f stack_trace_filter ]
+ echo
+ [ -f kprobe_events ]
+ echo
+ [ -f uprobe_events ]
+ echo
+ [ -f synthetic_events ]
+ echo
+ [ -f snapshot ]
+ echo 0
+ [ -f options/pause-on-trace ]
+ echo 1
+ clear_trace
+ echo
+ enable_tracing
+ echo 1
+ .
/home/azure/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
+ which nproc
/usr/bin/nproc
+ nproc
+ NP=2
+ [ 2 -eq 1 ]
+ [ -f /sys/devices/system/cpu/cpu1/online ]
+ cat /sys/devices/system/cpu/cpu1/online
+ [ 1 = 1 ]
+ cpu=/sys/devices/system/cpu/cpu1
+ break
+ [ -z /sys/devices/system/cpu/cpu1 ]
+ echo 0
+ echo
+ basename /sys/devices/system/cpu/cpu1
+ : Set cpu1 offline/online with function tracer enabled
+ echo function
+ echo 1
+ echo 0
./ftracetest: 38: echo: echo: I/O error
# of passed: 0
# of failed: 1
# of unresolved: 0
# of untested: 0
# of unsupported: 0
# of xfailed: 0
# of undefined(test bug): 0
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