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Date: Thu, 12 Oct 2017 11:48:43 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Christopher Lameter <cl@...ux.com>, Josh Poimboeuf <jpoimboe@...hat.com>, kernel test robot <xiaolong.ye@...el.com>, Ingo Molnar <mingo@...nel.org>, Andy Lutomirski <luto@...nel.org>, Borislav Petkov <bp@...en8.de>, Brian Gerst <brgerst@...il.com>, Denys Vlasenko <dvlasenk@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Jiri Slaby <jslaby@...e.cz>, Mike Galbraith <efault@....de>, Peter Zijlstra <peterz@...radead.org>, Thomas Gleixner <tglx@...utronix.de>, LKML <linux-kernel@...r.kernel.org>, lkp@...org, linux-mm@...ck.org, Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>, Joonsoo Kim <iamjoonsoo.kim@....com>, Matt Mackall <mpm@...enic.com> Subject: Re: [lkp-robot] [x86/kconfig] 81d3871900: BUG:unable_to_handle_kernel On Thu, 12 Oct 2017 10:54:57 -0700 Linus Torvalds <torvalds@...ux-foundation.org> wrote: > On Thu, Oct 12, 2017 at 10:05 AM, Christopher Lameter <cl@...ux.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.
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