On 05/22/2015 06:32 AM, Mick wrote: > On Friday 22 May 2015 13:47:28 walt wrote: >> On 05/21/2015 04:49 PM, Dale wrote: > >>> Then so have I. I have changed one thing a lot of times over the years, >>> run make and it work fine. Most of the time, it is when emerge spits >>> out that a option is needed for a package to work. Honestly, this is >>> the first time I recall hearing this should even be done. >> >> The first n times I discovered than "make clean" prevents (some) problems >> (sometimes) is when I was running the daily unstable kernels directly from >> Linus's git repo. >> >> As you would expect, I had to git-bisect a lot of kernel bugs over the >> years, and along the way I discovered that doing the exact-same bisect on >> the exact- same source code could produce different results -- results >> that were just plain wrong sometimes. >> >> That problem disappeared when I started doing "make clean" after every >> bisect, painful though it seemed at the time. >> >> I'm now much too old and grouchy to debug unstable kernels every day, >> though. > > Did you also enable CONFIG_MEMCG & MEMCG_KMEM in your kernel?
When I use the search function in "make menuconfig" I don't see any mention of MEMCG, so I suspect that particular config item must be enabled by some other config option that I didn't enable (though I don't remember making that decision one way or the other). I'm running gentoo-sources-3.14.42, so you can see I've become almost as grumpy as Volker in my dotage ;)

