** Description changed: * Impact The lightdm-gtk-greeter often segfaults on VMs * Test case - start a xubuntu livesession in a VM and logout -> you should get a greeter to log in (or install xubuntu in a VM) * Regression potential the mlockall call was supposed to provide improved security but isn't working, it was already commented out some cycles ago in unity-greeter, upstream and it other distributions ------------------ Upstream:https://github.com/Xubuntu/lightdm-gtk-greeter/issues/77 This is one of the many core dumps on `journalctl` for a given boot (dumps multiple times before starting) : **See it on upstream bug report** System Details: System: Kernel: 5.8.0-12-generic x86_64 bits: 64 compiler: N/A Desktop: Xfce 4.14.2 Distro: Ubuntu 20.10 (Groovy Gorilla) (*Proposed) lightdm 1.30.0-0ubuntu3.1: amd64 lightdm-gtk-greeter 2.0.6-0ubuntu1:amd64 lightdm-gtk-greeter-settings 1.2.2-3 linux-firmware 1.189 ------------------------------------------------------ systemd,systemd-coredump, systemd-sysv 245.7-1ubuntu1 ------------------------------------------------------ - OpenGL ES 3.2 - Mesa 20.2.0-devel - - [lightdm.log](https://termbin.com/eipz) - [coredumpctl](https://termbin.com/chr2) - [gdb_backtrace](https://termbin.com/645a) - Current Behaviour: On boot screen blinks for 2-3 times (probably the segmentation fault) but eventually starts after 1-2 minutes. Expected Behaviour: Greeter would appear properly after boot. Note: Some other systemd services are also failing on proposed, not sure if related. ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: lightdm-gtk-greeter 2.0.6-0ubuntu1 ProcVersionSignature: Ubuntu 5.8.0-12.13-generic 5.8.0-rc7 Uname: Linux 5.8.0-12-generic x86_64 ApportVersion: 2.20.11-0ubuntu43 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: XFCE Date: Wed Aug 5 12:58:44 2020 InstallationDate: Installed on 2020-04-17 (109 days ago) InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200416) SourcePackage: lightdm-gtk-greeter UpgradeStatus: Upgraded to groovy on 2020-08-04 (0 days ago) modified.conffile..etc.lightdm.lightdm-gtk-greeter.conf: [greeter] indicators = ~session;~language;~a11y;~clock;~power default-user-image = /home/korte/Pictures/profile/profile.jpeg mtime.conffile..etc.lightdm.lightdm-gtk-greeter.conf: 2020-06-27T09:26:56.022638
** Tags removed: verification-needed-groovy ** Tags added: verification-done-groovy ** Tags removed: groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890394 Title: Lightdm-gtk-greeter coredump during boot with recent systemd versions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1890394/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
