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[Jürg Häfliger <1909422@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1909422

Title:
  ubuntu_ftrace_smoke_test timeout on F-5.15/H/J/K-riscv

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux-riscv package in Ubuntu:
  Invalid
Status in linux-riscv source package in Groovy:
  Won't Fix
Status in linux-riscv source package in Hirsute:
  Won't Fix

Bug description:
  Issue found on 5.8.0-13.15 RISCV with a KVM instance.

  Test failed with "Timer expired (1350 sec.), nuking pid 520", test log:
  $ AUTOTEST_PATH=/home/ubuntu/autotest sudo -E autotest/client/autotest-local --verbose autotest/client/tests/ubuntu_ftrace_smoke_test/control 
  03:46:12 INFO | Writing results to /home/ubuntu/autotest/client/results/default
  03:46:12 DEBUG| Initializing the state engine
  03:46:12 DEBUG| Persistent state client.steps now set to []
  03:46:13 DEBUG| Persistent option harness now set to None
  03:46:13 DEBUG| Persistent option harness_args now set to None
  03:46:13 DEBUG| Selected harness: standalone
  03:46:15 INFO | START	----	----	timestamp=1609127175	localtime=Dec 28 03:46:15	
  03:46:16 DEBUG| Persistent state client._record_indent now set to 1
  03:46:16 DEBUG| Test has timeout: 1350 sec.
  03:46:16 INFO | 	START	ubuntu_ftrace_smoke_test.ftrace-smoke-test	ubuntu_ftrace_smoke_test.ftrace-smoke-test	timestamp=1609127176	timeout=1350	localtime=Dec 28 03:46:16	
  03:46:16 DEBUG| Persistent state client._record_indent now set to 2
  03:46:16 DEBUG| Persistent state client.unexpected_reboot now set to ('ubuntu_ftrace_smoke_test.ftrace-smoke-test', 'ubuntu_ftrace_smoke_test.ftrace-smoke-test')
  03:46:16 DEBUG| Waiting for pid 520 for 1350 seconds
  03:46:16 WARNI| System python is too old, crash handling disabled
  03:46:16 DEBUG| Running '/home/ubuntu/autotest/client/tests/ubuntu_ftrace_smoke_test/ubuntu_ftrace_smoke_test.sh'
  03:46:16 DEBUG| [stdout] PASSED (CONFIG_FUNCTION_TRACER=y in /boot/config-5.8.0-13-generic)
  03:46:17 DEBUG| [stdout] PASSED (CONFIG_FUNCTION_GRAPH_TRACER=y in /boot/config-5.8.0-13-generic)
  03:46:17 DEBUG| [stdout] PASSED (CONFIG_STACK_TRACER=y in /boot/config-5.8.0-13-generic)
  03:46:17 DEBUG| [stdout] PASSED (CONFIG_DYNAMIC_FTRACE=y in /boot/config-5.8.0-13-generic)
  03:46:19 DEBUG| [stdout] PASSED all expected /sys/kernel/debug/tracing files exist
  03:46:19 DEBUG| [stdout] PASSED (function_graph in /sys/kernel/debug/tracing/available_tracers)
  03:46:19 DEBUG| [stdout] PASSED (function in /sys/kernel/debug/tracing/available_tracers)
  03:46:20 DEBUG| [stdout] PASSED (nop in /sys/kernel/debug/tracing/available_tracers)
  03:46:26 DEBUG| [stdout] PASSED (tracer function can be enabled)
  03:46:35 DEBUG| [stdout] PASSED (tracer function_graph can be enabled)
  03:46:35 DEBUG| [stdout]  - tracer function_graph got enough data
  03:46:35 DEBUG| [stdout]  - tracer function_graph completed
  03:46:36 DEBUG| [stdout]  - tracer function_graph being turned off
  03:46:36 DEBUG| [stdout]  - tracer got 532 irq events
  03:46:43 DEBUG| [stdout]  - tracer hwlat got enough data
  03:46:43 DEBUG| [stdout]  - tracer hwlat completed
  03:46:43 DEBUG| [stdout]  - tracer hwlat being turned off
  03:46:44 DEBUG| [stdout]  - tracer nop being set as current tracer
  03:46:46 DEBUG| [stdout] PASSED (tracer hwlat can be enabled (got 12 lines of tracing output))
  03:46:48 DEBUG| [stdout]  - tracer blk got enough data
  03:46:48 DEBUG| [stdout]  - tracer blk completed
  03:46:48 DEBUG| [stdout]  - tracer blk being turned off
  03:46:48 DEBUG| [stdout]  - tracer nop being set as current tracer
  03:46:50 DEBUG| [stdout] PASSED (tracer blk can be enabled (got 2 lines of tracing output))
  03:46:56 INFO | Timer expired (1350 sec.), nuking pid 520
  03:46:57 INFO | 		ERROR	ubuntu_ftrace_smoke_test.ftrace-smoke-test	ubuntu_ftrace_smoke_test.ftrace-smoke-test	timestamp=1609127216	localtime=Dec 28 03:46:56	Unhandled AutoservRunError: Could not kill 520
    None
    Traceback (most recent call last):
      File "/home/ubuntu/autotest/client/job.py", line 510, in _runtest
        parallel.fork_waitfor_timed(self.resultdir, pid, timeout)
      File "/home/ubuntu/autotest/client/parallel.py", line 112, in fork_waitfor_timed
        utils.nuke_pid(pid)
      File "/home/ubuntu/autotest/client/shared/utils.py", line 1214, in nuke_pid
        raise error.AutoservRunError('Could not kill %d' % pid, None)
    AutoservRunError: Could not kill 520
    None
    
  03:46:57 INFO | 	END ERROR	ubuntu_ftrace_smoke_test.ftrace-smoke-test	ubuntu_ftrace_smoke_test.ftrace-smoke-test	timestamp=1609127217	localtime=Dec 28 03:46:57

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