** Description changed: - Install randomly crashes/fails/hangs on systems with 3GB or less - When the system doesn't hang, I can see kernel OOM killing random processes like calamares, cryptsetup etc. + Since around introduction of Kernel 6.8 to Daily builds, installation of + Kubuntu / Ubuntu / Ubuntu-Mate builds randomly hangs(mostly), crashes or + fails on systems with 3GB or less. - I had ~75% success of installing Kubuntu 24.04 daily on VMs with less then 3GB and almost 0% on 2GB VMs. - Previous livecd installers had no issues with 2GB VMs and + When the system hangs, VM indicates heavy CPU and CDROM usage. My bet is + on Kernel killing itself trying to "juggle" data between OverlayFS and + Filesystem cache without a way to swap-out since someone decided that + removing zram-config from livefs was a good idea. + + When the system doesn't hang, I can see kernel OOM killing random + processes like calamares, cryptsetup etc. + + I had 100% success of installing Kubuntu 24.04 daily on VMs with 3GB, 75% with 2.5GB and almost 0% on 2GB VMs. + Lvecd installers prioir to Linux 6.8 had no issues with 2GB VMs. Once the system is installed it functions satisfactory with 2GB. I believe adding zram-config to livefs/casper would allow installation on systems with only 2GB of RAM. - Note, - Similar issue also affects other Ubuntu images so the issue is not calamares specific. - The problem first appeared around the time of switching to Kernel 6.8. - I believe the issue is overlayfs related since that's the main difference between livefs and installed system and there were a lot of changes related to overlayfs. + Tested over a coulpe of months with many snapshots of 24.04 Daily builds + for Ubuntu, Kubutu and Ubuntu-Mate on VirtualBox and KVM/Qemu with + default settings except enabled EFI. + + PS, + The issue is not unique to calamares but I am filing it here since that's what I was asked to do by people on #kubuntu-devel and to be honest at the moment I don't care about anything but being able to test Kubuntu images on small VMs.
** Summary changed: - Kubuntu 24.04 daily builds - Install randomly crashes/fails/hangs on systems with 3GB or less + Kubuntu 24.04 daily builds - Install randomly hangs/fails/crashes on systems with less than ~3GB of RAM -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2062428 Title: Kubuntu 24.04 daily builds - Install randomly hangs/fails/crashes on systems with less than ~3GB of RAM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/calamares-settings-ubuntu/+bug/2062428/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
