dccp test in ubuntu_stress_smoke_test failed with 4.4/4.15 KVM kernel

[Po-Hsu Lin]

The test failed with:
16:26:24 DEBUG| [stdout] dccp STARTING
16:26:24 DEBUG| [stdout] dccp RETURNED 2
16:26:24 DEBUG| [stdout] dccp FAILED
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] 2 processors online, 2 processors configured
16:26:24 DEBUG| [stdout] stress-ng: info: [2228] dispatching hogs: 4 dccp
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] cache allocate: reducing cache level from L3 (too high) to L2
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] cache allocate: default cache size: 4096K
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] starting stressors
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] 4 stressors spawned
16:26:24 DEBUG| [stdout] stress-ng: debug: [2231] stress-ng-dccp: started [2231] (instance 2)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2232] stress-ng-dccp: started [2232] (instance 3)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2229] stress-ng-dccp: started [2229] (instance 0)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2230] stress-ng-dccp: started [2230] (instance 1)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2231] stress-ng-dccp: process [2231] using socket port 10002
16:26:24 DEBUG| [stdout] stress-ng: debug: [2229] stress-ng-dccp: process [2229] using socket port 10000
16:26:24 DEBUG| [stdout] stress-ng: debug: [2232] stress-ng-dccp: process [2232] using socket port 10003
16:26:24 DEBUG| [stdout] stress-ng: debug: [2230] stress-ng-dccp: process [2230] using socket port 10001
16:26:24 DEBUG| [stdout] stress-ng: debug: [2231] stress-ng-dccp: socket failed, errno=94 (Socket type not supported)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2231] stress-ng-dccp: 0 messages sent
16:26:24 DEBUG| [stdout] stress-ng: debug: [2231] stress-ng-dccp: exited [2231] (instance 2)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2239] stress-ng-dccp: socket failed, errno=94 (Socket type not supported)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2230] stress-ng-dccp: socket failed, errno=94 (Socket type not supported)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2230] stress-ng-dccp: 0 messages sent
16:26:24 DEBUG| [stdout] stress-ng: debug: [2230] stress-ng-dccp: exited [2230] (instance 1)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2232] stress-ng-dccp: socket failed, errno=94 (Socket type not supported)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2232] stress-ng-dccp: 0 messages sent
16:26:24 DEBUG| [stdout] stress-ng: debug: [2232] stress-ng-dccp: exited [2232] (instance 3)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2235] stress-ng-dccp: socket failed, errno=94 (Socket type not supported)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2229] stress-ng-dccp: socket failed, errno=94 (Socket type not supported)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2229] stress-ng-dccp: 0 messages sent
16:26:24 DEBUG| [stdout] stress-ng: debug: [2229] stress-ng-dccp: exited [2229] (instance 0)
16:26:24 DEBUG| [stdout] stress-ng: error: [2228] process 2229 (stress-ng-dccp) terminated with an error, exit status=1 (stress-ng core failure)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] process [2229] terminated
16:26:24 DEBUG| [stdout] stress-ng: error: [2228] process 2230 (stress-ng-dccp) terminated with an error, exit status=1 (stress-ng core failure)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] process [2230] terminated
16:26:24 DEBUG| [stdout] stress-ng: error: [2228] process 2231 (stress-ng-dccp) terminated with an error, exit status=1 (stress-ng core failure)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] process [2231] terminated
16:26:24 DEBUG| [stdout] stress-ng: error: [2228] process 2232 (stress-ng-dccp) terminated with an error, exit status=1 (stress-ng core failure)
16:26:24 DEBUG| [stdout] stress-ng: debug: [2228] process [2232] terminated
16:26:24 DEBUG| [stdout] stress-ng: info: [2228] unsuccessful run completed in 0.01s
16:26:24 DEBUG| [stdout]

Steps to reproduce:
  Deploy the node with Xenial 4.4 kernel, install linux-kvm
  sudo apt-get install python-minimal
  git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests -b master-next
  git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest
  rm -fr autotest/client/tests
  ln -sf ~/autotest-client-tests autotest/client/tests
  AUTOTEST_PATH=/home/ubuntu/autotest sudo -E autotest/client/autotest-local --verbose autotest/client/tests/ubuntu_stress_smoke_test/control

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-1019-kvm 4.4.0-1019.24
ProcVersionSignature: User Name 4.4.0-1019.24-kvm 4.4.98
Uname: Linux 4.4.0-1019-kvm x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
Date: Mon Apr 2 16:31:05 2018
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-kvm
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1760638

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Po-Hsu Lin (cypressyew)]

Can be found on B-KVM as well.

[Colin Ian King (colin-king)]

See also: https://bugs.launchpad.net/ubuntu/+source/linux-kvm/+bug/1782727

DCCP is not enabled in this kernel

..and updates stress-ng to warn and not fail if the protocol is disabled:

http://kernel.ubuntu.com/git/cking/stress-ng.git/commit/?id=1c54d53b33d8e2b11c9c47b9cff04612ba9d7e14