action #44594: [functional][u] test fails in sysstat - regular expression for pidstat test is incorrect - openQA Tests (public) - openSUSE Project Management Tool

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action #44594

closed

[functional][u] test fails in sysstat - regular expression for pidstat test is incorrect

Added by szarate about 6 years ago. Updated almost 6 years ago.

Status:

Resolved

Priority:

High

Assignee:

szarate

Category:

Bugs in existing tests

Target version:

SUSE QA (private) - Milestone 23

Start date:

2018-11-30

Due date:

% Done:

Estimated time:

Difficulty:

Description

Observation¶

Looking one step further into the test, we can see that waiitserial was expecting a 0, and got a "0\n"... however the test still failed... so, false negative there?

openQA test in scenario sle-15-SP1-Installer-DVD-s390x-extra_tests_in_textmode@s390x-kvm-sle12 fails in
sysstat

Reproducible¶

Fails since (at least) Build 47.1

Expected result¶

Seems to always fail on s390x since the introduction of the test module (I think)

Suggestions¶

Crosscheck against the test on x86_64
See why s390x is behaving differently
Potentially rewrite the test module to use a more stable approach of parsing the serial terminal output

Further details¶

Always latest result in this scenario: latest

Related issues 1 (0 open — 1 closed)

Precedes openQA Tests (public) - action #46919: [functional][u][svirt][sporadic] auto_review:"IO::Socket::INET: connect: Connection timed out"

Rejected

szarate

2018-12-01

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Updated by mloviska about 6 years ago

But pidstat | awk '{print $3}' | head | tail -n 1 should not return 0.

 ~ pidstat
Linux 4.18.5-1-default (localhost)  11/30/18    _x86_64_    (8 CPU)

15:04:37      UID       PID    %usr %system  %guest   %wait    %CPU   CPU  Command
15:04:37        0         1    0.01    0.01    0.00    0.00    0.01     3  systemd
15:04:37        0         2    0.00    0.00    0.00    0.00    0.00     4  kthreadd
15:04:37        0         9    0.00    0.00    0.00    0.00    0.00     0  ksoftirqd/0
15:04:37        0        10    0.00    0.08    0.00    0.04    0.08     6  rcu_preempt
15:04:37        0        11    0.00    0.00    0.00    0.00    0.00     1  rcu_sched
15:04:37        0        12    0.00    0.00    0.00    0.00    0.00     7  rcu_bh
15:04:37        0        14    0.00    0.00    0.00    0.00    0.00     0  watchdog/0
15:04:37        0        17    0.00    0.00    0.00    0.00    0.00     1  watchdog/1
15:04:37        0        19    0.00    0.00    0.00    0.00    0.00     1  ksoftirqd/1
15:04:37        0        23    0.00    0.00    0.00    0.00    0.00     2  watchdog/2
15:04:37        0        24    0.00    0.00    0.00    0.00    0.00     2  migration/2
15:04:37        0        25    0.00    0.00    0.00    0.00    0.00     2  ksoftirqd/2

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Updated by mloviska about 6 years ago

➜  ~ cat - > /tmp/run_test           
pidstat | awk '{print $3}' | head | tail -n 1
➜  ~ bash -eox pipefail /tmp/run_test
+ pidstat
+ awk '{print $3}'
+ head
+ tail -n 1
14

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Updated by SLindoMansilla about 6 years ago

Subject changed from [u] test fails in sysstat - Possible false negative in wait_serial to [functional][u] test fails in sysstat - Possible false negative in wait_serial
Target version set to Milestone 22

It fails since last 7 builds: https://openqa.suse.de/tests/2314767#next_previous

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Updated by okurz about 6 years ago

This is an autogenerated message for openQA integration by the openqa_review script:

This bug is still referenced in a failing openQA test: extra_tests_in_textmode
https://openqa.suse.de/tests/2347166

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Updated by okurz almost 6 years ago

This is an autogenerated message for openQA integration by the openqa_review script:

This bug is still referenced in a failing openQA test: extra_tests_in_textmode
https://openqa.suse.de/tests/2375854

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Updated by okurz almost 6 years ago

Priority changed from Normal to High

Next task: Find "last good"

Bumping to "High" as used as label in currently failing tests

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Updated by mgriessmeier almost 6 years ago

okurz wrote:

Next task: Find "last good"

Bumping to "High" as used as label in currently failing tests

it was introduced with 226bd65943d21e371f8308e35d7cd9010f26f5d4 on Nov 16, 2018
so I doubt there will be any last good

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Updated by okurz almost 6 years ago

Description updated (diff)
Status changed from New to Workable

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Updated by szarate almost 6 years ago

Status changed from Workable to In Progress
Assignee set to szarate

Picking up this one

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#10

Updated by szarate almost 6 years ago

Precedes action #46919: [functional][u][svirt][sporadic] auto_review:"IO::Socket::INET: connect: Connection timed out" added

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#11

Updated by szarate almost 6 years ago

Description updated (diff)

Testing on 3 different machines (s390 included), gave the same result, however while looking well at the output, it seems that there's an extra "\n" in the test...

LC_TIME='C' pidstat  |awk '{print $3}' | head | tail -n 1 | hexdump -c
0000000   0  \n                                                        
0000002

pid can vary :), didn't look too much in the test when I reported it...

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#12

Updated by szarate almost 6 years ago

The regexp is the culprit... sub { m/[1-999]/ }... pr is comming it's way

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#13

Updated by szarate almost 6 years ago

Status changed from In Progress to Feedback

https://github.com/os-autoinst/os-autoinst-distri-opensuse/pull/6795

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#14

Updated by szarate almost 6 years ago

Subject changed from [functional][u] test fails in sysstat - Possible false negative in wait_serial to [functional][u] test fails in sysstat - regular expression for pidstat test is incorrect

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#15