ubuntu_lttng_smoke_test failure on google f1.micro

[Ian May]

Output from ubuntu_lttng_smoke_test module build failure

gcc: fatal error: Killed signal terminated program cc1
 compilation terminated.
 make[1]: *** [scripts/Makefile.build:271: /var/lib/dkms/lttng-modules/2.12.2/build/lttng-syscalls.o] Error 1
 make: *** [Makefile:1760: /var/lib/dkms/lttng-modules/2.12.2/build] Error 2
 make: Leaving directory '/usr/src/linux-headers-5.4.0-1043-gcp'
DKMSKernelVersion: 5.4.0-1043-gcp
Date: Fri Apr 30 20:21:20 2021
Package: lttng-modules-dkms 2.12.2-1ubuntu1~20.04.1
PackageVersion: 2.12.2-1ubuntu1~20.04.1
SourcePackage: lttng-modules
Title: lttng-modules-dkms 2.12.2-1ubuntu1~20.04.1: lttng-modules kernel module failed to build

[Ian May (ian-may)]

This error indicates gcc ran out of memory. Could be same issue as seen here
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1791032

[Ian May (ian-may)]

bionic/linux-gke-5.4: 5.4.0-1043.45~18.04.1

[Colin Ian King (colin-king)]

it may be worth adding some swap to the machine during the test build, 2-4GB swap may be sufficient. these cloud instances don't have any swap enabled, so built failures will occur :-(

[Ian May (ian-may)]

bionic/linux-gkeop-5.4: 5.4.0-1015.16~18.04.1

[Ian May (ian-may)]

xenial/linux-gcp: 4.15.0-1099.112~16.04.1

[Krzysztof Kozlowski (krzk)]

Might be the same as lp:1847989

[Po-Hsu Lin (cypressyew)]

Plus this instance is extremely slow, it will take about 35 min to build the module...

[Po-Hsu Lin (cypressyew)]

On 4.15.0-1105.118-gcp it fails on f1.micro, the module build was not complete:

474. 07/06 02:01:24 DEBUG| utils:0153| [stdout] ..........................................................+++++
475. 07/06 02:01:24 DEBUG| utils:0153| [stdout] writing new private key to '/var/lib/shim-signed/mok/MOK.priv'
476. 07/06 02:01:24 DEBUG| utils:0153| [stdout] -----
477. 07/06 02:01:24 DEBUG| utils:0153| [stdout] Secure Boot not enabled on this system.
478. 07/06 02:01:28 DEBUG| utils:0153| [stdout] Done.
479.

[Po-Hsu Lin (cypressyew)]

f1.micro is now just tested with boot tests.