Okay. So we've been running 4.4.70 now for 22 hours and counting on docker1-tcn.
/var/crash# uptime 09:45:30 up 22:25, 1 user, load average: 0,01, 0,02, 0,00 /var/crash# uname -a Linux ossoio-docker1-tcn 4.4.70-040470-generic #201705251131 SMP Thu May 25 15:34:16 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux /var/crash# ls -l total 36 drwxr-xr-x 2 root root 4096 mei 29 18:19 201705291818 drwxr-xr-x 2 root root 4096 mei 29 18:37 201705291836 drwxr-xr-x 2 root root 4096 mei 29 23:53 201705292352 drwxr-xr-x 2 root root 4096 mei 30 08:00 201705300759 drwxr-xr-x 2 root root 4096 mei 30 09:49 201705300948 drwxr-xr-x 2 root root 4096 mei 30 10:58 201705301057 -rw-r--r-- 1 root root 0 mei 30 11:31 201705301119-START-vanilla-kernel-with-overlay2-instead-of-aufs -rw-r--r-- 1 root root 0 mei 31 09:16 201705310915-22hrs-uptime-still-no-crash Previously we had crashes at least every 8 hours. This looks promising. But, for this machine to work, I had to switch the dockerd storage from aufs from overlay2, because the vanilla kernel doesn't include aufs. This change isn't a problem, but it makes this result less reliable: is the problem with the Ubuntu-specific modules? Or with something that has been fixed between kernel 4.4.61 and 4.4.70? My best guess is still something with a (filesystem module?) change that went into 4.4.0-78 that did not get (fully) applied to the Ubuntu-specific modules. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1691741 Title: Execute NX-protected page - 4.4.0-78-generic - kernel panic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1691741/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs