I used apport-unpack to extract the coredump from the crash file, and then ran gdb on it. The two attachments gdb_laptop.log and gdb_vm.log are from gdb in the laptop and in the VM, respectively. Without debug symbols, the backtraces are not complete.
I tried to install debug symbols in the VM, as detailed at https://wiki.ubuntu.com/Debug%20Symbol%20Packages , but it failed due to: john@ubuntu-test:~/Downloads/core$ sudo apt install gnome-shell-dbgsym Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: gnome-shell-dbgsym : Depends: gnome-shell (= 3.36.1-5ubuntu1) but 3.36.2-1ubuntu1~20.04.1 is to be installed E: Unable to correct problems, you have held broken packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878275 Title: [qxl] wayland session hard freezes on login from GDM (X11 session works fine) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1878275/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
