[$] Persistent-memory error handling

One of the key advantages of persistent memory is that it is, for lack of abetter word, persistent; data stored there will be available for recall inthe future, regardless of whether the system has remained up in themeantime. But, like memory in general, persistent memory can fail for anumber of reasons and, given the quantities in which it is expected to be deployed, failures are acertainty. How should the operating system and applications deal witherrors in persistent memory? One of the first plenary sessions at the 2016 Linux Storage, Filesystem, and Memory-Management Summit, led by Jeff Moyer,took on this question.