Public bug reported: I tried installing kdump-tools (1.6.7-1ubuntu2.2) on my up to date 20.04 system, installed specifically to try reproducing a bug.
But when I tried, after kdump-config status reported "ready to dump" on reboot, echo 'c' | sudo tee /proc/sysrq-trigger, it printed the panic to console and then just hung forever. After some blind guessing and twiddling both variables, I found that crashkernel=512M-:256M works. ** Affects: makedumpfile (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931779 Title: kdump just hung out of the box To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1931779/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs