Before memcached had a monotonic clock people would end up with immortal objects (underflowed TTL's) because ntp would start after memcached and make a huge adj

Before memcached had a monotonic clock people would end up with immortal objects (underflowed TTL's) because ntp would start after memcached and make a huge adjustment due to the hardware clock being really off. With the restart code, people could run a kernel upgrade and reboot while the daemon is down... so if this ends up causing a huge clock adjustment you're screwed.