Received: by 2002:ac0:a5a6:0:0:0:0:0 with SMTP id m35-v6csp2089804imm; Thu, 27 Sep 2018 07:17:03 -0700 (PDT) X-Google-Smtp-Source: ACcGV61yYygmsFsrIGEcOyxSvG6+gyB3xNIdye2j0RKFb7heiQldlqds+dpp0CMLW4GGcIX/qZ3O X-Received: by 2002:a17:902:9307:: with SMTP id bc7-v6mr11191894plb.225.1538057823838; Thu, 27 Sep 2018 07:17:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1538057823; cv=none; d=google.com; s=arc-20160816; b=ejqHPOFpiN9CzczpzW5b2CSKg6m8NSWlrabFL1u75R9akvbT6BIoo6ZDqqQukRCPhw WBTg5qJoJ7I9iJ/qE5GFjUxxxxnpM/G7m2JQYFUR3qRAGvLG89QSBM/kImEz1HfFzf5l tDMYPmE35m1CHqwVZN+4fZk/UCeBLV/I48D6m2m1DHrd6vKMhWM0VHiANSSR56LwIPN+ zPLXV9m9L3T58AolI0aHOv0WOfxPSZdH61Ybed8+ROEKqGjl5pGycGm5155Ti1ZpVZOY tPkWdT+FpSB/dzwlNp7DdDGXsLXp1DenzT8Fn1mjJCelJlbgth5Bq0MwOuyr002SdjqY NYHA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:feedback-id:mime-version:user-agent :references:message-id:in-reply-to:subject:cc:to:from:date :dkim-signature; bh=0iO2WnbAnWpGnBvmthhOKoLwM5UIpUu7PDZu1J7oxj0=; b=fVFknTx12Xyf4hg7VXFLy+Kt0liXlDhzbf7turczsOi7XAwPZ4vOmZXRR5ic0c9ijO X545mniyzJMoQSNf1XKyQnjwabsR3FllsLtPnP/twHNizi6lmz+lJogFqqd0ju1Vw5Pu hUUd8urej5gnA7A+6sS1027DLaErrnjdlDftZiRjy7QS93fvQL4FFfCW/EWt+2LeV/yd HhxXP/KCkHjTKRUf2EjU8lhPaqWeqHICoFPDeS70Ej7PMGeVzT46yOAOPLMCyGNHfbbE Gq8RndXQrQW2HEsS7EmgHovi/kBB/5/3eYuuExfnu8gIvmYjhUkhpQ4m8xQhp1UyW/hA rNyw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b="b/ghY+IN"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i9-v6si2038817pgq.382.2018.09.27.07.16.33; Thu, 27 Sep 2018 07:17:03 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b="b/ghY+IN"; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728021AbeI0Uel (ORCPT + 99 others); Thu, 27 Sep 2018 16:34:41 -0400 Received: from a9-114.smtp-out.amazonses.com ([54.240.9.114]:35182 "EHLO a9-114.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727676AbeI0Uel (ORCPT ); Thu, 27 Sep 2018 16:34:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug; d=amazonses.com; t=1538057771; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:Feedback-ID; bh=0iO2WnbAnWpGnBvmthhOKoLwM5UIpUu7PDZu1J7oxj0=; b=b/ghY+INcyNOGuGzy7Y6aDqvSsf026jl9uogX00ZDa01s+KEPSESBS0JDciHTtKP FwTwW8S0oQCwfe6BKa/CFEa+i3/z5uxwd5p3vKUF1JaDNyqisiv+jL4vPEb9dYN4FTC tT/QdXKJRiNxHWai47oUo/EiQguSJzJbc/xwSqBQ= Date: Thu, 27 Sep 2018 14:16:11 +0000 From: Christopher Lameter X-X-Sender: cl@nuc-kabylake To: Dmitry Vyukov cc: Dmitry Torokhov , syzbot+87829a10073277282ad1@syzkaller.appspotmail.com, Pekka Enberg , "linux-input@vger.kernel.org" , lkml , Henrik Rydberg , syzkaller-bugs , Linux-MM Subject: Re: WARNING: kmalloc bug in input_mt_init_slots In-Reply-To: Message-ID: <010001661b631a3e-f398fc0a-127c-4c6e-b6ca-b2bd63bc4a9a-000000@email.amazonses.com> References: <000000000000e5f76c057664e73d@google.com> <010001660c1fafb2-6d0dc7e1-d898-4589-874c-1be1af94e22d-000000@email.amazonses.com> <010001660c4a8bbe-91200766-00df-48bd-bc60-a03da2ccdb7d-000000@email.amazonses.com> <20180924184158.GA156847@dtor-ws> <01000166110bb882-0b1fa048-fe1c-4139-a1ba-702754bbc267-000000@email.amazonses.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-SES-Outgoing: 2018.09.27-54.240.9.114 Feedback-ID: 1.us-east-1.fQZZZ0Xtj2+TD7V5apTT/NrT6QKuPgzCT/IC7XYgDKI=:AmazonSES Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 27 Sep 2018, Dmitry Vyukov wrote: > On Tue, Sep 25, 2018 at 4:04 PM, Christopher Lameter wrote: > > On Tue, 25 Sep 2018, Dmitry Vyukov wrote: > > > >> Assuming that the size is large enough to fail in all allocators, is > >> this warning still useful? How? Should we remove it? > > > > Remove it. It does not make sense because we check earlier if possible > > without the warn. > > Mailed "mm: don't warn about large allocations for slab" to remove the warning. > Hoe it arrives here at some point.