Managed to recover by resetting the blade. manually mounting /dev/md0 before running the cryptunlock (stacktrace still triggered after unmount) from dropbear shell and removing the wily kernel entries from grub.cfg and reverting back to vivid's kernel.
Appears to be an interaction between 4.1.0-3 and either xfs or lvm and -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1487662 Title: cciss driver crashes kernel during boot Status in linux package in Ubuntu: Incomplete Bug description: On a HP Proliant was running trusty with vivid kernel from backports originally. Worked fine with userspace upgrade to wily. When I rebooted with the wily linux-generic kernel however I got a stack dump: SW Raid1 on two CCISS based RAID0 disks, and dm_crypt. Kernel boots to prompt for cyrptoroot passphrase. After entering it and mounting entering the dm mapper init sequence the kernel crashes. I have a dropbear instance installed running from initramfs (for remote unlocking of root) and this is still runs. dmesg attached from server. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1487662/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
