After the autoremove & purge, reboot into 3.19, and a fresh install of your kernel debs, things look better:
sander@superstreamer:~$ dmesg | grep -i -e "Linux version" -e slub [ 0.000000] Linux version 3.18.0-13-generic (root@gloin) (gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu5) ) #14 SMP Tue Feb 17 11:13:29 UTC 2015 (Ubuntu 3.18.0-13.14~lp1418286v1-generic 3.18.5) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 That's your kernel, right? sander@superstreamer:~$ uname -a Linux superstreamer 3.18.0-13-generic #14 SMP Tue Feb 17 11:13:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux Looks good too, doesn't it? sander@superstreamer:~$ dmesg | grep -i glacier [ 6.976306] Loaded X.509 cert 'Magrathea: Glacier signing key: bf41f129406f110879b32f34256d25445a48cb14' sander@superstreamer:~$ No more Glacier messages. Hooray! So: installing the kernel now looks good. Sorry for the noise. I'll now keep the kernel running for a few hours and check for slub again. Thank you. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1418286 Title: kernel BUG at /build/buildd/linux-3.18.0/mm/slub.c:3334! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1418286/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
