Public bug reported: Hello,
there are multiple inquries in the mailcow GitHub issues over at https://github.com/mailcow/mailcow-dockerized/issues/2904 that the latest kernel linux-image-4.15.0-60-generic causes kernel panics when "- dns" setting is used within the docker-compose.yml file, for yet some unclear reasons. Multiple users on different systems (e.g. virtualized ones on VMware ESXi and KVM) were able to reproduce the same issue. I was also able to reproduce this constantly on a completely new deployed Ubuntu 18.04 VM (KVM) with a fresh mailcow installation. Steps to reproduce: 1. Install a clean Ubuntu 18.04(.03) machine 2. Upgrade the installation to linux-image-4.15.0-60-generic 3. Setup mailcow as instructed at https://mailcow.github.io/mailcow-dockerized-docs/i_u_m_install/ (just takes less than a minute, easy to reproduce) 4. Start mailcow with "dns"-settings specified in docker-compose file (Make sure using the older docker-compose version with dns settings: https://raw.githubusercontent.com/mailcow/mailcow-dockerized/a1403b7a5969637df23001d05c59c2a20774fbb5/docker-compose.yml) 5. Wait a few minutes, then kernel crash appears Using this workaround it appears to be stable again: https://github.com/mailcow/mailcow- dockerized/commit/dc6eea5142c063e26408a685b66fbb7754408ec2 I've attached the apport file to this bug. Please let me know if you need any kind of further information. (As this is my first bug report here, I hope I have included all required information helping you finding the cause.) Kind regards, Patrik ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Attachment added: "linux-image-4.15.0-60-generic.apport" https://bugs.launchpad.net/bugs/1842447/+attachment/5286482/+files/linux-image-4.15.0-60-generic.apport ** Description changed: Hello, there are multiple inquries in the mailcow GitHub issues over at https://github.com/mailcow/mailcow-dockerized/issues/2904 that the latest kernel linux-image-4.15.0-60-generic causes kernel panics when "- dns" setting is used within the docker-compose.yml file, for yet some unclear reasons. Multiple users on different systems (e.g. virtualized ones on VMware ESXi and KVM) were able to reproduce the same issue. I was also able to reproduce this constantly on a completely new deployed Ubuntu 18.04 VM (KVM) with a fresh mailcow installation. Steps to reproduce: 1. Install a clean Ubuntu 18.04(.03) machine 2. Upgrade the installation to linux-image-4.15.0-60-generic 3. Setup mailcow as instructed at https://mailcow.github.io/mailcow-dockerized-docs/i_u_m_install/ (just takes less than a minute, easy to reproduce) - 3. Start mailcow with "dns"-settings specified in docker-compose file (Make sure using the older docker-compose version with dns settings: https://raw.githubusercontent.com/mailcow/mailcow-dockerized/a1403b7a5969637df23001d05c59c2a20774fbb5/docker-compose.yml) - 4. Wait a few minutes, then kernel crash appears + 4. Start mailcow with "dns"-settings specified in docker-compose file (Make sure using the older docker-compose version with dns settings: https://raw.githubusercontent.com/mailcow/mailcow-dockerized/a1403b7a5969637df23001d05c59c2a20774fbb5/docker-compose.yml) + 5. Wait a few minutes, then kernel crash appears Using this workaround it appears to be stable again: https://github.com/mailcow/mailcow- dockerized/commit/dc6eea5142c063e26408a685b66fbb7754408ec2 I've attached the apport file to this bug. Please let me know if you need any kind of further information. (As this is my first bug report here, I hope I have included all required information helping you finding the cause.) Kind regards, Patrik -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1842447 Title: Kernel Panic with linux-image-4.15.0-60-generic when using docker- compose with dns setting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1842447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs