From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19505C433EF for ; Sat, 25 Jun 2022 06:00:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231753AbiFYGAO (ORCPT ); Sat, 25 Jun 2022 02:00:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230077AbiFYGAN (ORCPT ); Sat, 25 Jun 2022 02:00:13 -0400 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 27DC02250E for ; Fri, 24 Jun 2022 23:00:10 -0700 (PDT) Received: by mail-il1-f198.google.com with SMTP id i2-20020a056e021d0200b002d8ff49e7c4so2860449ila.8 for ; Fri, 24 Jun 2022 23:00:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=IKMceRPaWc2G+dnHVKLDkc7HvGZU/CkEP8IVEgb03Ns=; b=TVUc8ffQO1ug8yw3e5w3ZIce/D17Jg3XPSIbHNvl1q4o+MB+pUr9Y/VQFJ9Y8Usj4S 9ZkfTQ+XMwAtTSnJ/nPWzKHiwEwkH+aR1JjT3tU/Ifk6NmE6IuTyNbfJpiltH79eBpnF 0JN5J1WA8VUkZUcPMMz8qdGE4nyZPAgZajJjVvOZEIAENMcs9XnkDdihfKX7YQKWAUgx KqE88epI2BjCEDl8dlg/Y4qJNeKx9vWdlNrw+nMnqwFHc7RWvIB/xyCdsVlT19OqsZFx 7unc5CHNj59EakVd5UWF3EPyZ0LQ6JhYmI84twgRSmB1L2L1gSZSndqTm0PWp9z3R6vn hY7A== X-Gm-Message-State: AJIora+73E7tNbdw/U2NslY9xUkRBNO37ly7DtYRWPpZ9YYq+aKO3faz Qnrg/VI8ak9Cr/DsV9j9I+GqYqDhnjikpp8wA0E+KRO98KLC X-Google-Smtp-Source: AGRyM1uL+VYsH0pCraYwusMGeK5T2zcBsSbrq4QTww10/UETdQyFMA7xur6fexRTbGY+hYUlPhC5NnN10pkTXmLjwG6lyBDdOcw1 MIME-Version: 1.0 X-Received: by 2002:a02:ac0c:0:b0:339:c958:ca85 with SMTP id a12-20020a02ac0c000000b00339c958ca85mr1622365jao.305.1656136809496; Fri, 24 Jun 2022 23:00:09 -0700 (PDT) Date: Fri, 24 Jun 2022 23:00:09 -0700 In-Reply-To: <0000000000004b03c805e2099bf0@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003ad3d705e23f66ae@google.com> Subject: Re: [syzbot] WARNING in folio_lruvec_lock_irqsave From: syzbot To: akpm@linux-foundation.org, cgroups@vger.kernel.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com, songmuchun@bytedance.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit cca700a8e695fbe4a647e3a509ac513f05d5740a Author: Muchun Song Date: Tue Jun 21 12:56:58 2022 +0000 mm: lru: use lruvec lock to serialize memcg changes bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15abaf18080000 start commit: ac0ba5454ca8 Add linux-next specific files for 20220622 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17abaf18080000 console output: https://syzkaller.appspot.com/x/log.txt?x=13abaf18080000 kernel config: https://syzkaller.appspot.com/x/.config?x=12809dacb9e7c5e0 dashboard link: https://syzkaller.appspot.com/bug?extid=ec972d37869318fc3ffb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d0f470080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1145df0ff00000 Reported-by: syzbot+ec972d37869318fc3ffb@syzkaller.appspotmail.com Fixes: cca700a8e695 ("mm: lru: use lruvec lock to serialize memcg changes") For information about bisection process see: https://goo.gl/tpsmEJ#bisection