[SOLVED] trap divide error / divide error: 0000 [#1] SMP kernel bug

that patch is already included in our 4.4 kernel since pve-kernel-4.4.13-2-pve 4.4.13-59
 
yes, I only checked the git repository histroy, it might be that the 4.4.13-59 package never hit the public package repositories because it was replaced by a later kernel package altogether. for proxmox 4.x, only the most uptodate 4.4 kernel in the repository is supported.