As pointed out by Krzysztof the backport is dropping the line `kvm_ipa_limit = ipa_max;`.
I will prepare a test kernel re-introducing this line. -- 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/1929925 Title: [Potential Regression] Unable to create KVM with uvtool on Groovy ARM64 Status in ubuntu-kernel-tests: New Status in linux package in Ubuntu: New Status in linux source package in Groovy: New Bug description: Issue found on 5.8.0-54-generic proposed ARM64 kernel with node "helo", "wright" This issue does not exist in 5.8.0-53.60 so this might be a regression. Test case: 1. Deploy Groovy on an ARM64 node 2. Create a KVM with the following command: uvt-kvm create bjf-test release=groovy arch=arm64 Or you can run the ubuntu_kvm_smoke_test with autotest: git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest-client-tests -b master-next git clone --depth=1 git://kernel.ubuntu.com/ubuntu/autotest rm -fr autotest/client/tests ln -sf ~/autotest-client-tests autotest/client/tests sudo apt-get install git python-minimal -y || sudo apt install python2 -y AUTOTEST_PATH=/home/ubuntu/autotest sudo -E autotest/client/autotest-local --verbose autotest/client/tests/ubuntu_kvm_smoke_test/control 3. Install just the proposed kernel and reboot 4. Repeat step 2 This is 100% reproducible on ARM64, 4 out of 4 attempts (twice on each nodes). Test log: + SUT=bjf-test + SSH_KEY=/home/ubuntu/.ssh/id_rsa + SSH_OPTIONS='-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o LogLevel=quiet -i /home/ubuntu/.ssh/id_rsa' ++ lsb_release -c ++ awk '{print$2}' + DISTRO=groovy + ARCHITECTURE=arm64 + trap cleanup EXIT + '[' -z arm64 ']' + kvm-ok + '[' 0 '!=' 0 ']' + '[' '!' -f /home/ubuntu/.ssh/id_rsa ']' + '[' arm64 = ppc64el ']' ++ uvt-simplestreams-libvirt query ++ grep -P 'groovy.*arm64' + image='release=groovy arch=arm64 label=daily (20210527)' + '[' -z 'release=groovy arch=arm64 label=daily (20210527)' ']' + uvt-kvm create bjf-test release=groovy arch=arm64 uvt-kvm: error: libvirt: unsupported configuration: Emulator '/usr/bin/qemu-system-aarch64' does not support virt type 'kvm' syslog: May 28 08:01:07 helo-kernel kernel: [ 1030.945560] mpt3sas 0000:8d:00.0: invalid short VPD tag 00 at offset 1 May 28 08:01:08 helo-kernel kernel: [ 1031.238058] sr 3:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.242304] sr 3:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.245430] sr 3:0:0:1: [sr1] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.248810] sr 3:0:0:1: [sr1] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.252678] sr 3:0:0:2: [sr2] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.255678] sr 3:0:0:2: [sr2] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.258811] sr 3:0:0:3: [sr3] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:08 helo-kernel kernel: [ 1031.272678] sr 3:0:0:3: [sr3] CDROM not ready. Make sure there is a disc in the drive. May 28 08:01:13 helo-kernel systemd[1]: Started Daemon for generating UUIDs. May 28 08:01:13 helo-kernel kernel: [ 1036.620470] qemu-system-aar using unsupported default IPA limit, upgrade your VMM May 28 08:01:14 helo-kernel libvirtd[3767]: libvirt version: 6.6.0, package: 1ubuntu3.5 (Christian Ehrhardt <christian.ehrha...@canonical.com> Wed, 07 Apr 2021 13:33:46 +0200) May 28 08:01:14 helo-kernel libvirtd[3767]: hostname: helo-kernel May 28 08:01:14 helo-kernel libvirtd[3767]: unsupported configuration: Emulator '/usr/bin/qemu-system-aarch64' does not support virt type 'kvm' ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: linux-image-5.8.0-54-generic 5.8.0-54.61 ProcVersionSignature: Ubuntu 5.8.0-54.61-generic 5.8.18 Uname: Linux 5.8.0-54-generic aarch64 AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 May 28 07:04 seq crw-rw---- 1 root audio 116, 33 May 28 07:04 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.11-0ubuntu50.6 Architecture: arm64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CasperMD5CheckResult: skip CurrentDmesg: Date: Fri May 28 07:10:15 2021 IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' MachineType: To be filled by O.E.M. Saber PciMultimedia: ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-54-generic root=UUID=6660a008-6d09-4dba-a6f8-0fb57ee2582f ro sysrq_always_enabled RelatedPackageVersions: linux-restricted-modules-5.8.0-54-generic N/A linux-backports-modules-5.8.0-54-generic N/A linux-firmware 1.190.5 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/04/2020 dmi.bios.release: 7.4 dmi.bios.vendor: EDK II dmi.bios.version: 0ACKL030 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Saber dmi.board.vendor: To be filled by O.E.M. dmi.board.version: 1.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 2 dmi.chassis.vendor: To be filled by O.E.M. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnEDKII:bvr0ACKL030:bd06/04/2020:br7.4:svnTobefilledbyO.E.M.:pnSaber:pvr1.0:rvnTobefilledbyO.E.M.:rnSaber:rvr1.0:cvnTobefilledbyO.E.M.:ct2:cvr1.0: dmi.product.family: CN99XX dmi.product.name: Saber dmi.product.sku: SABER SKU dmi.product.version: 1.0 dmi.sys.vendor: To be filled by O.E.M. 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