ubuntu@kernel01:~/cking$ uname -a Linux kernel01 4.4.0-112-generic #135-Ubuntu SMP Fri Jan 19 11:48:07 UTC 2018 s390x s390x s390x GNU/Linux
Looks like the modules weren't built for the kernel. I tried the 4.4.0-112-generic and it works fine after re-installing the dkms modules: ubuntu@kernel01:~/cking$ sudo apt-get install --reinstall lttng-modules- dkms ubuntu@kernel01:~/cking$ sudo autotest/client/autotest-local autotest/client/tests/ubuntu_lttng_smoke_test/control 04:21:01 INFO | Writing results to /home/ubuntu/cking/autotest/client/results/default 04:21:01 INFO | START ---- ---- timestamp=1517304061 localtime=Jan 30 04:21:01 04:21:01 INFO | START ubuntu_lttng_smoke_test.lttng-smoke-test ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1517304061 localtime=Jan 30 04:21:01 04:21:08 ERROR| [stderr] [warning] Tracer discarded 18895 events between [04:21:04.967791464] and [04:21:05.094587794] in trace UUID edc5397baa392f43a990cbcc29bb2f82, at path: "/tmp/lttng-kernel-trace-36474-session/kernel", within stream id 0, at relative path: "channel0_3". You should consider recording a new trace with larger buffers or with fewer events enabled. 04:21:08 ERROR| [stderr] [warning] Tracer discarded 19530 events between [04:21:05.163582941] and [04:21:05.294597778] in trace UUID edc5397baa392f43a990cbcc29bb2f82, at path: "/tmp/lttng-kernel-trace-36474-session/kernel", within stream id 0, at relative path: "channel0_3". You should consider recording a new trace with larger buffers or with fewer events enabled. 04:21:08 INFO | == lttng smoke test of session create/destroy == 04:21:08 INFO | Session test-kernel-session created. 04:21:08 INFO | Traces will be written in /tmp/lttng-kernel-trace-36474-session 04:21:08 INFO | PASSED (lttng create) 04:21:08 INFO | Session test-kernel-session destroyed 04:21:08 INFO | PASSED (lttng destroy) 04:21:08 INFO | 04:21:08 INFO | == lttng smoke test list kernel events == 04:21:08 INFO | PASSED (lttng list --kernel) 04:21:08 INFO | 04:21:08 INFO | lttng smoke test trace open/close system calls SKIPPED for s390x 04:21:08 INFO | 04:21:08 INFO | == lttng smoke test trace context switches == 04:21:08 INFO | Session test-kernel-session created. 04:21:08 INFO | Traces will be written in /tmp/lttng-kernel-trace-36474-session 04:21:08 INFO | PASSED (lttng create) 04:21:08 INFO | Kernel event sched_switch created in channel channel0 04:21:08 INFO | PASSED (lttng enable-event) 04:21:08 INFO | Tracing started for session test-kernel-session 04:21:08 INFO | PASSED (lttng start) 04:21:08 INFO | Waiting for data availability. 04:21:08 INFO | Tracing stopped for session test-kernel-session 04:21:08 INFO | PASSED (lttng stop) 04:21:08 INFO | Session test-kernel-session destroyed 04:21:08 INFO | PASSED (lttng destroy) 04:21:08 INFO | Found 81105 dd and 95334 context switches 04:21:08 INFO | PASSED (simple system call tracing with babeltrace) 04:21:08 INFO | 04:21:08 INFO | Summary: 8 passed, 0 failed 04:21:08 INFO | GOOD ubuntu_lttng_smoke_test.lttng-smoke-test ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1517304068 localtime=Jan 30 04:21:08 completed successfully 04:21:08 INFO | END GOOD ubuntu_lttng_smoke_test.lttng-smoke-test ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1517304068 localtime=Jan 30 04:21:08 -- 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/1744270 Title: ubuntu_lttng_smoke_test failed on Xenial zVM Status in linux package in Ubuntu: In Progress Bug description: This test failed with the proposed Xenial kernel 4.4.0-111.134 on zVM It's not a regression since this can be reproduced with the older 4.4.0-108 on the very same node. Command returned non-zero exit status * Command: /home/ubuntu/autotest/client/tests/ubuntu_lttng_smoke_test/ubuntu_lttng_s moke_test.sh Exit status: 1 Duration: 0.447135210037 stdout: == lttng smoke test of session create/destroy == Spawning a session daemon Session test-kernel-session created. Traces will be written in /tmp/lttng-kernel-trace-32862-session PASSED (lttng create) Session test-kernel-session destroyed PASSED (lttng destroy) == lttng smoke test list kernel events == FAILED (lttng list --kernel) FAILED (lttng list --kernel more output expected) lttng smoke test trace open/close system calls SKIPPED for s390x == lttng smoke test trace context switches == Session test-kernel-session created. Traces will be written in /tmp/lttng-kernel-trace-32862-session PASSED (lttng create) FAILED (lttng enable-event) Session test-kernel-session destroyed Summary: 3 passed, 3 failed stderr: Error: Unable to list kernel events: Kernel tracer not available Error: Command error Error: Event sched_switch: Kernel tracer not available (channel channel0, session test-kernel-session) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-111-generic 4.4.0-111.134 ProcVersionSignature: Ubuntu 4.4.0-111.134-generic 4.4.98 Uname: Linux 4.4.0-111-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' ApportVersion: 2.20.1-0ubuntu2.15 Architecture: s390x ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. CurrentDmesg: Date: Fri Jan 19 05:11:39 2018 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: PciMultimedia: ProcEnviron: TERM=xterm-256color 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=UUID=44b0b919-a1a4-4849-9425-e71d4ac87d85 crashkernel=196M nogmb BOOT_IMAGE=0 RelatedPackageVersions: linux-restricted-modules-4.4.0-111-generic N/A linux-backports-modules-4.4.0-111-generic N/A linux-firmware 1.157.15 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1744270/+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