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Date: Thu, 12 Oct 2017 11:48:43 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Christopher Lameter <cl@linux.com>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        kernel test robot <xiaolong.ye@intel.com>,
        Ingo Molnar <mingo@kernel.org>, Andy Lutomirski <luto@kernel.org>,
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        Pekka Enberg <penberg@kernel.org>,
        David Rientjes <rientjes@google.com>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>, Matt Mackall <mpm@selenic.com>
Subject: Re: [lkp-robot] [x86/kconfig] 81d3871900:
 BUG:unable_to_handle_kernel
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On Thu, 12 Oct 2017 10:54:57 -0700 Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Thu, Oct 12, 2017 at 10:05 AM, Christopher Lameter <cl@linux.com> 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.