clock test in monotonic_time will fail on Azure Instances
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-kernel-tests |
Invalid
|
Undecided
|
Unassigned | ||
linux-azure (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Among all of the Azure node, this test only failed on these two nodes:
Seen on the following instances:
Basic_A2
Standard_D2_v3
Standard_D2s_v3
Standard_E4s_v3
Standard_E64-16s
Standard_F2s_v2
Steps to reproduce:
1. git clone --depth=1 git://kernel.
2. make -C autotest-
3. sudo autotest-
Results:
$ sudo autotest-
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/
Time test command exit status: 1
Exception escaping from test:
Traceback (most recent call last):
File "/home/
_exec_
File "/home/
return func(*args, **dargs)
File "/home/
postprocess_
File "/home/
self.run_
File "/home/
raise error.TestFail(
TestFail: FAIL: clock-worst-
summary: |
clock test in monotonic_time will fail on Azure Standard_E4s_v3 / - Standard_E64-16s + Standard_E64-16s / AWS m5a.large |
tags: | added: sru-20190812 |
tags: | added: monotonic-time |
Added Logs from AWS instance failure. This test only appears to fail on the instance types backed via AMD EPYC 7000 series processors with an all core turbo clock speed of 2.5 GHz
may or may not be relevant info
11/22 00:04:50 INFO |monotonic_:0048| Time test command exit status: 1 ubuntu/ autotest/ client/ shared/ test.py" , line 411, in _exec test_function( self.execute, *p_args, **p_dargs) ubuntu/ autotest/ client/ shared/ test.py" , line 823, in _call_test_f ubuntu/ autotest/ client/ shared/ test.py" , line 291, in execute _profiled_ run, args, dargs) ubuntu/ autotest/ client/ shared/ test.py" , line 212, in _call_run_on run_once( *args, **dargs) ubuntu/ autotest/ client/ tests/monotonic _time/monotonic _time.py" , l line)
11/22 00:04:50 ERROR| test:0414| Exception escaping from test:
Traceback (most recent call last):
File "/home/
_call_
File "/home/
unction
return func(*args, **dargs)
File "/home/
postprocess
File "/home/
ce
self.
File "/home/
ine 54, in run_once
raise error.TestFail(
TestFail: FAIL: tsc-worst-warp=-44