Adam, the kernel oops you're experiencing appears to be specific to that kernel version, and unrelated to the general question of whether cifs upcall support is enabled in the Ubuntu kernel. Please file a separate bug report for this issue.
Adam, the kernel oops you're experiencing appears to be specific to that kernel version, and unrelated to the general question of whether cifs upcall support is enabled in the Ubuntu kernel. Please file a separate bug report for this issue.