[poky] SSTATE_MIRRORS not working?

[Kristian Amlie]

For some time now, I've had the problem that SSTATE_MIRRORS does not
work properly for me. I can see that it downloads lots of packages from
the cache, but once the setscene stage is over, and runqueue begins, it
starts the whole build from scratch regardless.

This used to work for me before, it would only run a small subset of the
tasks locally, taking full advantage of the cache, so I'm fairly certain
my setup is correct. For me it broke maybe six weeks ago or so (master
branch).

I realize this question may be more appropriate for bitbake-devel, and I
can provide more details, but I thought I'd just hear if anybody else
has experienced the same, before I go digging.

-- 
Kristian