From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753068AbdJLTTE (ORCPT ); Thu, 12 Oct 2017 15:19:04 -0400 Received: from mail-wm0-f68.google.com ([74.125.82.68]:49386 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752889AbdJLTTD (ORCPT ); Thu, 12 Oct 2017 15:19:03 -0400 X-Google-Smtp-Source: ABhQp+QrjVdcD5zMQsAqCXzFZrwbZtKdTYRsoch4LCXk7q8aK+IdHPlu4zzF+JEnprNIR5mR6C4C4gxgyGMC+70wyzU= MIME-Version: 1.0 In-Reply-To: <20171012114843.d74096014cb88eedbaa7ac70@linux-foundation.org> References: <20171010121513.GC5445@yexl-desktop> <20171011023106.izaulhwjcoam55jt@treble> <20171011170120.7flnk6r77dords7a@treble> <20171012114843.d74096014cb88eedbaa7ac70@linux-foundation.org> From: Geert Uytterhoeven Date: Thu, 12 Oct 2017 21:19:01 +0200 X-Google-Sender-Auth: mhCEUKggHHB7Z_MA30h0f9UZ2Is Message-ID: Subject: Re: [lkp-robot] [x86/kconfig] 81d3871900: BUG:unable_to_handle_kernel To: Andrew Morton Cc: Linus Torvalds , Christopher Lameter , Josh Poimboeuf , kernel test robot , Ingo Molnar , Andy Lutomirski , Borislav Petkov , Brian Gerst , Denys Vlasenko , "H. Peter Anvin" , Jiri Slaby , Mike Galbraith , Peter Zijlstra , Thomas Gleixner , LKML , LKP , Linux MM , Pekka Enberg , David Rientjes , Joonsoo Kim , Matt Mackall Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 12, 2017 at 8:48 PM, Andrew Morton wrote: > On Thu, 12 Oct 2017 10:54:57 -0700 Linus Torvalds wrote: >> On Thu, Oct 12, 2017 at 10:05 AM, Christopher Lameter 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. $ git grep CONFIG_SLOB=y arch/arm/configs/clps711x_defconfig:CONFIG_SLOB=y arch/arm/configs/collie_defconfig:CONFIG_SLOB=y arch/arm/configs/multi_v4t_defconfig:CONFIG_SLOB=y arch/arm/configs/omap1_defconfig:CONFIG_SLOB=y arch/arm/configs/pxa_defconfig:CONFIG_SLOB=y arch/arm/configs/tct_hammer_defconfig:CONFIG_SLOB=y arch/arm/configs/xcep_defconfig:CONFIG_SLOB=y arch/blackfin/configs/DNP5370_defconfig:CONFIG_SLOB=y arch/h8300/configs/edosk2674_defconfig:CONFIG_SLOB=y arch/h8300/configs/h8300h-sim_defconfig:CONFIG_SLOB=y arch/h8300/configs/h8s-sim_defconfig:CONFIG_SLOB=y arch/openrisc/configs/or1ksim_defconfig:CONFIG_SLOB=y arch/sh/configs/rsk7201_defconfig:CONFIG_SLOB=y arch/sh/configs/rsk7203_defconfig:CONFIG_SLOB=y arch/sh/configs/se7206_defconfig:CONFIG_SLOB=y arch/sh/configs/shmin_defconfig:CONFIG_SLOB=y arch/sh/configs/shx3_defconfig:CONFIG_SLOB=y kernel/configs/tiny.config:CONFIG_SLOB=y $ Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f69.google.com (mail-wm0-f69.google.com [74.125.82.69]) by kanga.kvack.org (Postfix) with ESMTP id 719AE6B0033 for ; Thu, 12 Oct 2017 15:19:03 -0400 (EDT) Received: by mail-wm0-f69.google.com with SMTP id t69so3865312wmt.7 for ; Thu, 12 Oct 2017 12:19:03 -0700 (PDT) Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id z66sor293689wmb.12.2017.10.12.12.19.01 for (Google Transport Security); Thu, 12 Oct 2017 12:19:02 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20171012114843.d74096014cb88eedbaa7ac70@linux-foundation.org> References: <20171010121513.GC5445@yexl-desktop> <20171011023106.izaulhwjcoam55jt@treble> <20171011170120.7flnk6r77dords7a@treble> <20171012114843.d74096014cb88eedbaa7ac70@linux-foundation.org> From: Geert Uytterhoeven Date: Thu, 12 Oct 2017 21:19:01 +0200 Message-ID: Subject: Re: [lkp-robot] [x86/kconfig] 81d3871900: BUG:unable_to_handle_kernel Content-Type: text/plain; charset="UTF-8" Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Linus Torvalds , Christopher Lameter , Josh Poimboeuf , kernel test robot , Ingo Molnar , Andy Lutomirski , Borislav Petkov , Brian Gerst , Denys Vlasenko , "H. Peter Anvin" , Jiri Slaby , Mike Galbraith , Peter Zijlstra , Thomas Gleixner , LKML , LKP , Linux MM , Pekka Enberg , David Rientjes , Joonsoo Kim , Matt Mackall On Thu, Oct 12, 2017 at 8:48 PM, Andrew Morton wrote: > On Thu, 12 Oct 2017 10:54:57 -0700 Linus Torvalds wrote: >> On Thu, Oct 12, 2017 at 10:05 AM, Christopher Lameter 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. $ git grep CONFIG_SLOB=y arch/arm/configs/clps711x_defconfig:CONFIG_SLOB=y arch/arm/configs/collie_defconfig:CONFIG_SLOB=y arch/arm/configs/multi_v4t_defconfig:CONFIG_SLOB=y arch/arm/configs/omap1_defconfig:CONFIG_SLOB=y arch/arm/configs/pxa_defconfig:CONFIG_SLOB=y arch/arm/configs/tct_hammer_defconfig:CONFIG_SLOB=y arch/arm/configs/xcep_defconfig:CONFIG_SLOB=y arch/blackfin/configs/DNP5370_defconfig:CONFIG_SLOB=y arch/h8300/configs/edosk2674_defconfig:CONFIG_SLOB=y arch/h8300/configs/h8300h-sim_defconfig:CONFIG_SLOB=y arch/h8300/configs/h8s-sim_defconfig:CONFIG_SLOB=y arch/openrisc/configs/or1ksim_defconfig:CONFIG_SLOB=y arch/sh/configs/rsk7201_defconfig:CONFIG_SLOB=y arch/sh/configs/rsk7203_defconfig:CONFIG_SLOB=y arch/sh/configs/se7206_defconfig:CONFIG_SLOB=y arch/sh/configs/shmin_defconfig:CONFIG_SLOB=y arch/sh/configs/shx3_defconfig:CONFIG_SLOB=y kernel/configs/tiny.config:CONFIG_SLOB=y $ Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============9046164146564632597==" MIME-Version: 1.0 From: Geert Uytterhoeven To: lkp@lists.01.org Subject: Re: [lkp-robot] [x86/kconfig] 81d3871900: BUG:unable_to_handle_kernel Date: Thu, 12 Oct 2017 21:19:01 +0200 Message-ID: In-Reply-To: <20171012114843.d74096014cb88eedbaa7ac70@linux-foundation.org> List-Id: --===============9046164146564632597== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Thu, Oct 12, 2017 at 8:48 PM, Andrew Morton wrote: > On Thu, 12 Oct 2017 10:54:57 -0700 Linus Torvalds wrote: >> On Thu, Oct 12, 2017 at 10:05 AM, Christopher Lameter w= rote: >> > On Wed, 11 Oct 2017, Josh Poimboeuf wrote: >> > >> >> I failed to add the slab maintainers to CC on the last attempt. Tryi= ng >> >> again. >> > >> > Hmmm... Yea. SLOB is rarely used and tested. Good illustration of a si= mple >> > 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. $ git grep CONFIG_SLOB=3Dy arch/arm/configs/clps711x_defconfig:CONFIG_SLOB=3Dy arch/arm/configs/collie_defconfig:CONFIG_SLOB=3Dy arch/arm/configs/multi_v4t_defconfig:CONFIG_SLOB=3Dy arch/arm/configs/omap1_defconfig:CONFIG_SLOB=3Dy arch/arm/configs/pxa_defconfig:CONFIG_SLOB=3Dy arch/arm/configs/tct_hammer_defconfig:CONFIG_SLOB=3Dy arch/arm/configs/xcep_defconfig:CONFIG_SLOB=3Dy arch/blackfin/configs/DNP5370_defconfig:CONFIG_SLOB=3Dy arch/h8300/configs/edosk2674_defconfig:CONFIG_SLOB=3Dy arch/h8300/configs/h8300h-sim_defconfig:CONFIG_SLOB=3Dy arch/h8300/configs/h8s-sim_defconfig:CONFIG_SLOB=3Dy arch/openrisc/configs/or1ksim_defconfig:CONFIG_SLOB=3Dy arch/sh/configs/rsk7201_defconfig:CONFIG_SLOB=3Dy arch/sh/configs/rsk7203_defconfig:CONFIG_SLOB=3Dy arch/sh/configs/se7206_defconfig:CONFIG_SLOB=3Dy arch/sh/configs/shmin_defconfig:CONFIG_SLOB=3Dy arch/sh/configs/shx3_defconfig:CONFIG_SLOB=3Dy kernel/configs/tiny.config:CONFIG_SLOB=3Dy $ Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert(a)linux-m6= 8k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like t= hat. -- Linus Torvalds --===============9046164146564632597==--