** Description changed: + == Justification == + In the Xenial / Bionic KVM kernel, the CONFIG_ZRAM was not set, it's impossible for users to use zram module on it. And the ubuntu_zram_smoke_test regression test is failing due to the missing module. + + == Test == + Before enabling CONFIG_ZRAM and the related configs, the zram module cannot be found. + After that, the zram module can be inserted and pass the ubuntu_zram_smoke_test. + + Test kernels could be found here: + http://people.canonical.com/~phlin/kernel/lp-1766823-zram/ + + == Fix == + [bionic/linux-kvm][xenial/linux-kvm][SRU][PATCH] UBUNTU: [Config]: enable CONFIG_ZRAM + + == Regression Potential == + Minimal. + No code changes, just a config changes without disabling any other configs. + + + ------ + The ubuntu_zram_smoke_test will fail due to the lack of the zram module. 07:32:19 DEBUG| Running '/home/ubuntu/autotest/client/tests/ubuntu_zram_smoke_test/ubuntu_zram_smoke_test.sh' 07:32:19 ERROR| [stderr] modprobe: FATAL: Module zram not found in directory /lib/modules/4.15.0-1008-kvm 07:32:19 DEBUG| [stdout] FAILED: cannot load zram module 07:32:19 ERROR| Exception escaping from test: There is no zram config in the Bionic KVM kernel config file. $ grep -i zram debian.kvm/config/config.common.ubuntu $ ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-1008-kvm 4.15.0-1008.8 ProcVersionSignature: User Name 4.15.0-1008.8-kvm 4.15.17 Uname: Linux 4.15.0-1008-kvm x86_64 NonfreeKernelModules: signpost ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 Date: Wed Apr 25 07:32:47 2018 ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=C.UTF-8 - SHELL=/bin/bash + 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)
** No longer affects: linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766823 Title: zram module not found in 4.4/4.15 KVM kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1766823/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
