Public bug reported:

Among all of the Azure node, this test only failed on these two nodes:

Steps to reproduce:
 1. git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests
 2. make -C autotest-client-tests/monotonic_time/src
 3. sudo autotest-client-tests/monotonic_time/src/time_test --duration 300 tsc

Results:
$ sudo autotest-client-tests/monotonic_time/src/time_test --duration 300 tsc

 Running 'make '
 cc -O -std=gnu99 -Wall -c -o time_test.o time_test.c
 cc -O -std=gnu99 -Wall -c -o cpuset.o cpuset.c
 cc -O -std=gnu99 -Wall -c -o threads.o threads.c
 cc -O -std=gnu99 -Wall -c -o logging.o logging.c
 cc -o time_test time_test.o cpuset.o threads.o logging.o -lpthread -lrt
 Running '/home/azure/autotest/client/tmp/monotonic_time/src/time_test 
--duration 300 clock'
 Time test command exit status: 1
 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/monotonic_time/monotonic_time.py", 
line 53, in run_once
 raise error.TestFail(line)
 TestFail: FAIL: clock-worst-warp=-100

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New

** Affects: linux-azure (Ubuntu)
     Importance: Undecided
         Status: New

** Also affects: linux-azure (Ubuntu)
   Importance: Undecided
       Status: New

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Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1774959

Title:
  clock test in monotonic_time will fail on Azure Standard_E4s_v3 /
  Standard_E64-16s

Status in ubuntu-kernel-tests:
  New
Status in linux-azure package in Ubuntu:
  New

Bug description:
  Among all of the Azure node, this test only failed on these two nodes:

  Steps to reproduce:
   1. git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests
   2. make -C autotest-client-tests/monotonic_time/src
   3. sudo autotest-client-tests/monotonic_time/src/time_test --duration 300 tsc

  Results:
  $ sudo autotest-client-tests/monotonic_time/src/time_test --duration 300 tsc

   Running 'make '
   cc -O -std=gnu99 -Wall -c -o time_test.o time_test.c
   cc -O -std=gnu99 -Wall -c -o cpuset.o cpuset.c
   cc -O -std=gnu99 -Wall -c -o threads.o threads.c
   cc -O -std=gnu99 -Wall -c -o logging.o logging.c
   cc -o time_test time_test.o cpuset.o threads.o logging.o -lpthread -lrt
   Running '/home/azure/autotest/client/tmp/monotonic_time/src/time_test 
--duration 300 clock'
   Time test command exit status: 1
   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/monotonic_time/monotonic_time.py", 
line 53, in run_once
   raise error.TestFail(line)
   TestFail: FAIL: clock-worst-warp=-100

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