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[Jürg Häfliger <1853417@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1853417

Title:
  tsc failed on T-aws 4.4 i3.metal

Status in ubuntu-kernel-tests:
  New
Status in linux-aws package in Ubuntu:
  New
Status in linux-aws source package in Trusty:
  New

Bug description:
  This test is only failing on i3.metal.

  Reproduce rate: 3 out of 3 attempts

  Failed with:
    TestFail: Latency CPU 66 - CPU 37 =   706 exceeds threshold 650

  Test history on i3.metal:
  * 4.4.0-1057.61	- passed
  * 4.4.0-1056.60	- passed
  * 4.4.0-1055.59	- passed

   Running 'make  '
   [stdout] cc -O -Wall -Wpedantic -Werror   -c -o checktsc.o checktsc.c
   [stdout] cc  -o checktsc checktsc.o -lpthread
   Running '/home/ubuntu/autotest/client/tmp/tsc/src/checktsc -t 650'
   Program checktsc exit status is 1
   Exception escaping from test:
  Traceback (most recent call last):
    File "/home/ubuntu/autotest/client/shared/test.py", line 411, in _exec
      _call_test_function(self.execute, *p_args, **p_dargs)
    File "/home/ubuntu/autotest/client/shared/test.py", line 823, in _call_test_function
      return func(*args, **dargs)
    File "/home/ubuntu/autotest/client/shared/test.py", line 291, in execute
      postprocess_profiled_run, args, dargs)
    File "/home/ubuntu/autotest/client/shared/test.py", line 212, in _call_run_once
      self.run_once(*args, **dargs)
    File "/home/ubuntu/autotest/client/tests/tsc/tsc.py", line 74, in run_once
      raise error.TestFail(reason)
  TestFail: Latency CPU 66 - CPU 37 =   706 exceeds threshold 650
   child process failed

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