Unable to insert sysdig_probe module on KVM kernel

[Po-Hsu Lin]

The sysdig-dkms module cannot be installed on the B-KVM kernel once before (bug 1764693), but now the installation works since 4.15.0-1007

However, when you try to insert the module, it will complain about:
$ sudo modprobe sysdig-probe
modprobe: ERROR: could not insert 'sysdig_probe': Unknown symbol in module, or unknown parameter (see dmesg)

Log in dmesg:
[ 1989.967807] sysdig_probe: loading out-of-tree module taints kernel.
[ 1989.967924] sysdig_probe: module verification failed: signature and/or required key missing - tainting kernel
[ 1989.967986] sysdig_probe: Unknown symbol tracepoint_probe_unregister (err 0)
[ 1989.968090] sysdig_probe: Unknown symbol for_each_kernel_tracepoint (err 0)
[ 1989.968094] sysdig_probe: Unknown symbol tracepoint_probe_register (err 0)

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-1007-kvm 4.15.0-1007.7
ProcVersionSignature: User Name 4.15.0-1007.7-kvm 4.15.17
Uname: Linux 4.15.0-1007-kvm x86_64
ApportVersion: 2.20.9-0ubuntu6
Architecture: amd64
Date: Tue Apr 24 11:31:08 2018
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-kvm
UpgradeStatus: No upgrade log present (probably fresh install)

[Po-Hsu Lin (cypressyew)]

This issue only happens on the KVM kernel, Bionic generic works fine with it.

[Sean Feole (sfeole)]

I do not see this occuring anymore on bionic / linux-kvm 4.15.0-1043.43

[Sean Feole (sfeole)]

latest run of ubuntu_sysdig the module now installs properly as expected, the test itself still fails due to raw data can't be found for the initial test

[Sean Feole (sfeole)]

08/29 11:20:26 DEBUG| utils:0153| [stdout] == sysdig smoke test to trace dd, cat, read and writes ==
08/29 11:20:26 DEBUG| utils:0153| [stdout] Limiting raw capture file to 16384 blocks
08/29 11:20:26 DEBUG| utils:0153| [stdout] Try 1 of 10
08/29 11:21:13 DEBUG| utils:0153| [stdout] Could not find start of capture message, maybe sysdig didn't start?
08/29 11:21:21 ERROR| utils:0153| [stderr] stat: cannot stat '/home/ubuntu/autotest/client/results/default/ubuntu_sysdig_smoke_test.sysdig-smoke-testsysdig-kernel-trace-1670.tmp.raw': No such file or directory
08/29 11:21:21 DEBUG| utils:0153| [stdout] Raw capture file is 0 Mbytes
08/29 11:21:21 DEBUG| utils:0153| [stdout] Converted events file is 0 Mbytes
08/29 11:21:21 DEBUG| utils:0153| [stdout] Try 2 of 10
08/29 11:22:08 DEBUG| utils:0153| [stdout] Could not find start of capture message, maybe sysdig didn't start?
08/29 11:22:16 ERROR| utils:0153| [stderr] stat: cannot stat '/home/ubuntu/autotest/client/results/default/ubuntu_sysdig_smoke_test.sysdig-smoke-testsysdig-kernel-trace-1670.tmp.raw': No such file or directory
08/29 11:22:16 DEBUG| utils:0153| [stdout] Raw capture file is 0 Mbytes
08/29 11:22:16 DEBUG| utils:0153| [stdout] Converted events file is 0 Mbytes
08/29 11:22:16 DEBUG| utils:0153| [stdout] Try 3 of 10
08/29 11:23:03 DEBUG| utils:0153| [stdout] Could not find start of capture message, maybe sysdig didn't start?
08/29 11:23:12 ERROR| utils:0153| [stderr] stat: cannot stat '/home/ubuntu/autotest/client/results/default/ubuntu_sysdig_smoke_test.sysdig-smoke-testsysdig-kernel-trace-1670.tmp.raw': No such file or directory
08/29 11:23:12 DEBUG| utils:0153| [stdout] Raw capture file is 0 Mbytes
08/29 11:23:12 DEBUG| utils:0153| [stdout] Converted events file is 0 Mbytes
08/29 11:23:12 DEBUG| utils:0153| [stdout] Try 4 of 10
08/29 11:23:59 DEBUG| utils:0153| [stdout] Could not find start of capture message, maybe sysdig didn't start?
08/29 11:24:06 ERROR| utils:0153| [stderr] stat: cannot stat '/home/ubuntu/autotest/client/results/default/ubuntu_sysdig_smoke_test.sysdig-smoke-testsysdig-kernel-trace-1670.tmp.raw': No such file or directory
08/29 11:24:06 DEBUG| utils:0153| [stdout] Raw capture file is 0 Mbytes
08/29 11:24:06 DEBUG| utils:0153| [stdout] Converted events file is 0 Mbytes
08/29 11:24:06 DEBUG| utils:0153| [stdout] Try 5 of 10
08/29 11:24:53 DEBUG| utils:0153| [stdout] Could not find start of capture message, maybe sysdig didn't start?
08/29 11:25:01 ERROR| utils:0153| [stderr] stat: cannot stat '/home/ubuntu/autotest/client/results/default/ubuntu_sysdig_smoke_test.sysdig-smoke-testsysdig-kernel-trace-1670.tmp.raw': No such file or directory
08/29 11:25:01 DEBUG| utils:0153| [stdout] Raw capture file is 0 Mbytes
08/29 11:25:01 DEBUG| utils:0153| [stdout] Converted events file is 0 Mbytes
08/29 11:25:01 DEBUG| utils:0153| [stdout] Try 6 of 10
08/29 11:25:48 DEBUG| utils:0153| [stdout] Could not find start of capture message, maybe sysdig didn't start?
08/29 11:25:57 ERROR| utils:0153| [stderr] stat: cannot stat '/home/ubuntu/autotest/client/results/defa...