From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f177.google.com (mail-ob0-f177.google.com [209.85.214.177]) by kanga.kvack.org (Postfix) with ESMTP id AB6656B0294 for ; Fri, 2 Oct 2015 09:37:04 -0400 (EDT) Received: by obbda8 with SMTP id da8so81962934obb.1 for ; Fri, 02 Oct 2015 06:37:04 -0700 (PDT) Received: from bh-25.webhostbox.net (bh-25.webhostbox.net. [208.91.199.152]) by mx.google.com with ESMTPS id n8si5991723oev.81.2015.10.02.06.37.03 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Fri, 02 Oct 2015 06:37:03 -0700 (PDT) Subject: Re: linux-next: kernel BUG at mm/slub.c:1447! References: <560D59F7.4070002@roeck-us.net> <20151001134904.127ccc7bea14e969fbfba0d5@linux-foundation.org> From: Guenter Roeck Message-ID: <560E8879.6050808@roeck-us.net> Date: Fri, 2 Oct 2015 06:36:57 -0700 MIME-Version: 1.0 In-Reply-To: <20151001134904.127ccc7bea14e969fbfba0d5@linux-foundation.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: "linux-kernel@vger.kernel.org" , Christoph Lameter , "Kirill A. Shutemov" , linux-mm@kvack.org, Michal Hocko , Dave Chinner On 10/01/2015 01:49 PM, Andrew Morton wrote: > On Thu, 1 Oct 2015 09:06:15 -0700 Guenter Roeck wrote: > >> Seen with next-20151001, running qemu, simulating Opteron_G1 with a non-SMP configuration. >> On a re-run, I have seen it with the same image, but this time when simulating IvyBridge, >> so it is not CPU dependent. I did not previously see the problem. >> >> Log is at >> http://server.roeck-us.net:8010/builders/qemu-x86-next/builds/259/steps/qemubuildcommand/logs/stdio >> >> I'll try to bisect. The problem is not seen with every boot, so that may take a while. > > Caused by mhocko's "mm, fs: obey gfp_mapping for add_to_page_cache()", > I expect. > I tried to bisect to be sure, but the problem doesn't happen often enough, and I got some false negatives. I assume bisect is no longer necessary. If I need to try again, please let me know. Thanks, Guenter -- 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