Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp704655imm; Mon, 9 Jul 2018 09:07:44 -0700 (PDT) X-Google-Smtp-Source: AAOMgpc0e7cDg+m75qFMv6vGuV0mwjxfkDgGWV8r9wdzpf8KSZJ0zJhR5rOoH8KtRGKYn3GCP/VX X-Received: by 2002:aa7:8148:: with SMTP id d8-v6mr21967943pfn.78.1531152464479; Mon, 09 Jul 2018 09:07:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531152464; cv=none; d=google.com; s=arc-20160816; b=Xnl3BLM1Pd6/TcCUTTeZXaGw89b1JJLvnhDspqatJVGgqEu7/GwDc9ilr4cIchntwi hUdeOJc72N8iK3kHcUaWAzzwa8qOeWV+vRl2P9IFcve2yS1K7nHqrD52C9F1pm9ftE7N 4qkFQoIAk6hKdEV624JjmSHytJCZypHJSEtgyQ6g7+BNAx9GNaGthMZO1rTOikeffW3+ igvax1dCrTc56nN7MBWNMrRWq2f2QgwTYk26geAveoGX34YVfPPdQuEuVgBEPRomWxua mTpTceyC17T8KxyHhmHlxf8WROl+z8PUs5WKaHugB08rdklagiuanmbrPYn03QBfpBcP LT9A== 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:arc-authentication-results; bh=osx1tHKGclu+rzFhQdVY7e+T8QmP1NZZqjMCn6a+L5k=; b=up3+tDmckUk4v9e8fujn25f+B72qX2g5QvsuNuJ/xaI8HCO7rxlKjVJjsMi/eLxokB 4gR9Ut9HGsAucYC2T/PSbLt6jpQEoV4rUCDpbuqv9NdoptP5ejL7rdDKHEXfQFHi9C7I M+JUJaoWpn8WYRFiTBIpxgTXZfwVRLid66wpXlnScc6NXWbJI3beDGJYDkFBeGZ3mbOH d4M5qNNOMeQ2Yd6il0uJ2r3OlNAWxRKcI6yLvysfvgJ1GRHyVYwYofiDUaAnUH5spa3f 7GUwQ7KeaZQHzHG9jmfg3k2iqy/aqp8iA4bYDTfexYLliC5dUxgG6efDAA+b7Eq7TgXt VBpQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amazonses.com header.s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug header.b=IkefpQeZ; 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 bb12-v6si14123868plb.328.2018.07.09.09.07.30; Mon, 09 Jul 2018 09:07:44 -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=IkefpQeZ; 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 S1754535AbeGIQFt (ORCPT + 99 others); Mon, 9 Jul 2018 12:05:49 -0400 Received: from a9-99.smtp-out.amazonses.com ([54.240.9.99]:50226 "EHLO a9-99.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752112AbeGIQFs (ORCPT ); Mon, 9 Jul 2018 12:05:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=ug7nbtf4gccmlpwj322ax3p6ow6yfsug; d=amazonses.com; t=1531152347; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:MIME-Version:Content-Type:Feedback-ID; bh=osx1tHKGclu+rzFhQdVY7e+T8QmP1NZZqjMCn6a+L5k=; b=IkefpQeZSq+oo2dlN18Ef5WCfaZk9JG3eUVZbf0ns1O1Q2m0tTs/mE48kXk5jzYV B2ZE0Nlpl1pJSDIjrlsbvmNLKKYDNwB1GWMS0rXXK5GxWRN5Wh9blYmQdY5dAInGggL rrVgbPb5eY+ucAF5ooZralpXGjiTtPb6A7EeTups= Date: Mon, 9 Jul 2018 16:05:47 +0000 From: Christopher Lameter X-X-Sender: cl@nuc-kabylake To: syzbot cc: keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Subject: Re: kernel BUG at mm/slab.c:LINE! (2) In-Reply-To: <000000000000afa87d05708af289@google.com> Message-ID: <010001647fcab0b9-1154d4da-94f8-404e-8898-b8acdf366592-000000@email.amazonses.com> References: <000000000000afa87d05708af289@google.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: 2018.07.09-54.240.9.99 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 Sun, 8 Jul 2018, syzbot wrote: > kernel BUG at mm/slab.c:4421! Classic location that indicates memory corruption. Can we rerun this with CONFIG_SLAB_DEBUG? Alternatively use SLUB debugging for better debugging without rebuilding.