This issue can be reproduced with Xenial HWE kernel as well (4.13)
03/20 05:22:06 DEBUG| utils:0153| [stdout] Building initial module for 4.15.0-13-lowlatency
03/20 05:22:14 DEBUG| utils:0153| [stdout] Error! Bad return status for module build on kernel: 4.15.0-13-lowlatency (x86_64)
03/20 05:22:14 DEBUG| utils:0153| [stdout] Consult /var/lib/dkms/lttng-modules/2.8.0/build/make.log for more information.
This issue can be reproduced with Xenial HWE kernel as well (4.13)
03/20 05:22:06 DEBUG| utils:0153| [stdout] Building initial module for 4.15.0- 13-lowlatency 13-lowlatency (x86_64) dkms/lttng- modules/ 2.8.0/build/ make.log for more information.
03/20 05:22:14 DEBUG| utils:0153| [stdout] Error! Bad return status for module build on kernel: 4.15.0-
03/20 05:22:14 DEBUG| utils:0153| [stdout] Consult /var/lib/