Activity log for bug #1850076

Date Who What changed Old value New value Message
2019-10-27 21:05:01 Parfait bug added bug
2019-10-27 21:07:11 Parfait description I used this qemu-system-x86_64 -enable-kvm -display sdl -cpu host -net nic,model=e1000 -serial mon:stdio -m 3072 -drive format=raw,file=var/run/seoul-net.img -machine q35 to emulate a personal hypervisor. But since my ubuntu's kernel was upgraded from 5.0.0-29-generic to 5.0.0-32-generic, the hypervisor crashes during boot time and reboots. When I tried to debug, I discovered that it throws a page fault in the kernel on a specific address while the address is well mapped (checked via info mem and info tlb). Know I freeze the kernel on 5.0.0-29 to continue running my hypervisor. The 5.0.0-31-generic version has also the same problem. I don't know for the other version. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.0.0-32-generic 5.0.0-32.34~18.04.2 ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21 Uname: Linux 5.0.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Oct 27 21:37:53 2019 InstallationDate: Installed on 2019-09-14 (43 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: linux-signed-hwe UpgradeStatus: No upgrade log present (probably fresh install) I used this qemu-system-x86_64 -enable-kvm -display sdl -cpu host -net nic,model=e1000 -serial mon:stdio -m 3072 -drive format=raw,file=var/run/seoul-net.img -machine q35 to emulate a personal hypervisor. But since my ubuntu's kernel was upgraded from 5.0.0-29-generic to 5.0.0-32-generic, the hypervisor crashes during boot time and reboots. When I tried to debug, I discovered that it throws a page fault in the kernel on a specific address while the address is well mapped (checked via info mem and info tlb). I have frozen the kernel on 5.0.0-29 to continue running my hypervisor. The 5.0.0-31-generic version has also the same problem. I don't know for the other versions. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.0.0-32-generic 5.0.0-32.34~18.04.2 ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21 Uname: Linux 5.0.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Oct 27 21:37:53 2019 InstallationDate: Installed on 2019-09-14 (43 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: linux-signed-hwe UpgradeStatus: No upgrade log present (probably fresh install)
2019-10-28 13:28:48 Parfait description I used this qemu-system-x86_64 -enable-kvm -display sdl -cpu host -net nic,model=e1000 -serial mon:stdio -m 3072 -drive format=raw,file=var/run/seoul-net.img -machine q35 to emulate a personal hypervisor. But since my ubuntu's kernel was upgraded from 5.0.0-29-generic to 5.0.0-32-generic, the hypervisor crashes during boot time and reboots. When I tried to debug, I discovered that it throws a page fault in the kernel on a specific address while the address is well mapped (checked via info mem and info tlb). I have frozen the kernel on 5.0.0-29 to continue running my hypervisor. The 5.0.0-31-generic version has also the same problem. I don't know for the other versions. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.0.0-32-generic 5.0.0-32.34~18.04.2 ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21 Uname: Linux 5.0.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Oct 27 21:37:53 2019 InstallationDate: Installed on 2019-09-14 (43 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: linux-signed-hwe UpgradeStatus: No upgrade log present (probably fresh install) I used this qemu-system-x86_64 -enable-kvm -display sdl -cpu host -net nic,model=e1000 -serial mon:stdio -m 3072 -drive format=raw,file=var/run/seoul-net.img -machine q35 to emulate a personal hypervisor (https://github.com/ptokponnon/NOVA/tree/cached_cow_refined). But since my ubuntu's kernel was upgraded from 5.0.0-29-generic to 5.0.0-32-generic, the hypervisor crashes during boot time and reboots. When I tried to debug, I discovered that it throws a page fault in the kernel on a specific address while the address is well mapped (checked via info mem and info tlb). I have frozen the kernel on 5.0.0-29 to continue running my hypervisor. The 5.0.0-31-generic version has also the same problem. I don't know for the other versions. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.0.0-32-generic 5.0.0-32.34~18.04.2 ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21 Uname: Linux 5.0.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Oct 27 21:37:53 2019 InstallationDate: Installed on 2019-09-14 (43 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) SourcePackage: linux-signed-hwe UpgradeStatus: No upgrade log present (probably fresh install)
2019-10-31 14:00:24 Parfait attachment added image disk to reproduce this bug https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1850076/+attachment/5301774/+files/seoul-net.img