[CentOS] C7, kernel oops, sllub.c

Anyone else seeing this: I've seen it with different line # as an upstream
bug: kernel BUG at mm/slub.c:3601.

When I look for slub.c, I think I found a slightly different version,
since that's a blank line, but it's in the function slab_memory_callbac.

On a possibly related note, one of my users who runs debian has been
getting a ton of radeon errors... and guess what, it's to do with
slab_callback.

Anyone want me to post the backtrace from the abort?

      mark