Talking offline to Thadeu Cascardo the conclusion was that this is not a
bug in the kernel.
** Also affects: linux-aws (Ubuntu Trusty)
Importance: Undecided
Status: New
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Packages, which is subscribed to linux-aws in Ubuntu.
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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