Joseph - I switched one of the 6 machines that previously showed this behavior to the mainline kernel: Linux ip-10-0-32-196.us- west-2.compute.internal 4.9.0-040900-generic #201612111631 SMP Sun Dec 11 21:33:00 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux . I'll let you know the results of this experiment tomorrow.
Fumihito - I saw that docker bug when researching this issue, and I downgraded docker-engine on those machines to 1.12.2. However, that didn't help. Hopefully the mainline kernel test will shed some light on this. For reference this is my docker config: $ sudo docker info Containers: 102 Running: 13 Paused: 0 Stopped: 89 Images: 13 Server Version: 1.12.2 Storage Driver: overlay2 Backing Filesystem: extfs Logging Driver: journald Cgroup Driver: cgroupfs Plugins: Volume: local Network: bridge host overlay null Swarm: inactive Runtimes: runc Default Runtime: runc Security Options: apparmor seccomp Kernel Version: 4.9.0-040900-generic Operating System: Ubuntu 16.04.1 LTS OSType: linux Architecture: x86_64 CPUs: 4 Total Memory: 15.67 GiB Name: ip-10-0-32-196.us-west-2.compute.internal ID: TSIL:W3HI:APTU:DSVF:QDEF:HOJ6:PRB7:L7EL:QRQ2:K63C:CH22:RVQR Docker Root Dir: /data/docker Debug Mode (client): false Debug Mode (server): true File Descriptors: 59 Goroutines: 116 System Time: 2016-12-20T07:49:15.79205206Z EventsListeners: 0 Registry: https://index.docker.io/v1/ WARNING: No swap limit support Insecure Registries: 127.0.0.0/8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1651199 Title: 16.04 - Kernel panic on docker server To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1651199/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
