Re: [lkp-robot] [x86/kconfig] 81d3871900: BUG:unable_to_handle_kernel

From: Andrew Morton
Date: Thu Oct 12 2017 - 14:48:49 EST


On Thu, 12 Oct 2017 10:54:57 -0700 Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> On Thu, Oct 12, 2017 at 10:05 AM, Christopher Lameter <cl@xxxxxxxxx> wrote:
> > On Wed, 11 Oct 2017, Josh Poimboeuf wrote:
> >
> >> I failed to add the slab maintainers to CC on the last attempt. Trying
> >> again.
> >
> > Hmmm... Yea. SLOB is rarely used and tested. Good illustration of a simple
> > allocator and the K&R mechanism that was used in the early kernels.
>
> Should we finally just get rid of SLOB?
>
> I'm not happy about the whole "three different allocators" crap. It's
> been there for much too long, and I've tried to cut it down before.
> People always protest, but three different allocators, one of which
> gets basically no testing, is not good.
>

I am not aware of anyone using slob. We could disable it in Kconfig
for a year, see what the feedback looks like.