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 1729878 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. ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729878 Title: stress-ng triggering call-traces on s390x z/VM instances Status in linux package in Ubuntu: Incomplete Bug description: During regression testing on a z/VM instance, I noticed call traces being dumped to dmesg that seem to be related to stress-ng. The stress-ng invocation we're using is: stress-ng --aggressive --verify --timeout $runtime \ --metrics-brief --tz --times \ --af-alg 0 --bsearch 0 --context 0 --cpu 0 \ --crypt 0 --hsearch 0 --longjmp 0 --lsearch 0 \ --matrix 0 --qsort 0 --str 0 --stream 0 \ --tsearch 0 --vecmath 0 --wcs 0 as executed by the cpu_stress script from the cpu/cpu_stress_ng test in the certification suite. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-16-generic 4.13.0-16.19 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 Uname: Linux 4.13.0-16-generic s390x AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access '/dev/snd/': No such file or directory AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.7-0ubuntu3.1 Architecture: s390x ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Fri Nov 3 11:12:04 2017 HibernationDevice: RESUME=UUID=1ce0f037-449a-43a1-af49-e730f6f99ac4 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig' Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: PciMultimedia: ProcEnviron: TERM=screen PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C SHELL=/bin/bash ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb' ProcKernelCmdLine: root=/dev/mapper/hwe0008_vg-lv crashkernel=196M BOOT_IMAGE=0 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' SourcePackage: linux UpgradeStatus: Upgraded to artful on 2017-11-02 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp