[yocto] A lot of, seemingly, hung tasks

[Ronald Oakes]

Over the weekend, I upgraded my connected development platform to
Debian 8.4.0 from Centos 7.

However, today I have yet to make a successful poky-tiny build for
either coreI7-64 or qemux86-64.  In each case, I've aborted the build
after one or more tasks has stopped doing anything for 30 minutes or
more.

I define "stopped doing anything" as having not touched a file in 30
minutes, while the CPU utilization (on this 2 core, low end, ASUS
VivoPC) drops very low.

I've tried re-running the offending recipes and tasks individually,
and cleaning and restarting from scratch, but I keep ending up with
something hung.

Any ideas what is up, and, more importantly, what I should do to resolve it?

Ron Oakes