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 34E13EEB560 for ; Fri, 8 Sep 2023 18:07:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235055AbjIHSHD (ORCPT ); Fri, 8 Sep 2023 14:07:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233087AbjIHSHC (ORCPT ); Fri, 8 Sep 2023 14:07:02 -0400 Received: from mail-pf1-x447.google.com (mail-pf1-x447.google.com [IPv6:2607:f8b0:4864:20::447]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 225102111 for ; Fri, 8 Sep 2023 11:06:40 -0700 (PDT) Received: by mail-pf1-x447.google.com with SMTP id d2e1a72fcca58-68bf02547dbso3311691b3a.1 for ; Fri, 08 Sep 2023 11:06:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694196270; x=1694801070; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=0lAvPiHpQzYJH2/Evbqeae0jEIobBXd5mkIT/JR5mjU=; b=c3XJxY1e4u4g+5xkGx3o0XRD8vgka2PBG5fqNSb5gaTV1/3nBmNWvcGPunP3CGTHT9 M1WVlvx4iZZILCCvUK9V7RqlVaUAfjoj31VWFXhdwOcdiTTtaFEJ8dxYVAgnJqYGJhcb I0CqniDPFSs69pPztX3ekB3osHmHTChXIQWX5rpLLVHKF24ldrsjOKTM606XsN9c6aTX 3weeyz6e8gHS+y4K1S54ZNVWFhqG1Ym3h89+ElcZ0hLcpZky7fxugBeIlroLDASnULWL YA/fqHLTGVgK1H2EFGoQ9bQjVNwt27T9LXQ9+KCjDNf22mhTOUsVpOwmgcPzYCdcLyLL iDkQ== X-Gm-Message-State: AOJu0Yx9Y38iPxzYOWM2j6XTy3547tsAx02Jy/1IG5uqox2FvsVRs4UN jaYjqLyrOEBeA1kbSUArswfsUvP3eIzYpVwrkUOmAV3deTz4 X-Google-Smtp-Source: AGHT+IFG6oZqBOayFovKE0NVKEQ0Xnwtd+Nskzg2qKPXIoko6vfMv+elInHkBKWJh6QlQckbllDdPD2ESA+Mlnx+N1cgB86kBYBd MIME-Version: 1.0 X-Received: by 2002:a05:6a00:80c:b0:68a:3c7a:128c with SMTP id m12-20020a056a00080c00b0068a3c7a128cmr1357477pfk.2.1694196270440; Fri, 08 Sep 2023 11:04:30 -0700 (PDT) Date: Fri, 08 Sep 2023 11:04:30 -0700 In-Reply-To: <000000000000f392a60604a65085@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e127ec0604dcce27@google.com> Subject: Re: [syzbot] [mm?] kernel BUG in vma_replace_policy From: syzbot To: 42.hyeyoo@gmail.com, Liam.Howlett@Oracle.com, agordeev@linux.ibm.com, akpm@linux-foundation.org, alexghiti@rivosinc.com, aou@eecs.berkeley.edu, borntraeger@linux.ibm.com, cgroups@vger.kernel.org, christophe.leroy@csgroup.eu, damon@lists.linux.dev, david@redhat.com, eadavis@sina.com, frankja@linux.ibm.com, gerald.schaefer@linux.ibm.com, gor@linux.ibm.com, hannes@cmpxchg.org, hca@linux.ibm.com, imbrenda@linux.ibm.com, jeeheng.sia@starfivetech.com, jglisse@redhat.com, kvm@vger.kernel.org, leyfoon.tan@starfivetech.com, linmiaohe@huawei.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, mason.huo@starfivetech.com, mhocko@kernel.org, mpe@ellerman.id.au, muchun.song@linux.dev, naoya.horiguchi@nec.com, npiggin@gmail.com, palmer@dabbelt.com, paul.walmsley@sifive.com, roman.gushchin@linux.dev, sebastian.reichel@collabora.com, shakeelb@google.com, sj@kernel.org, surenb@google.com, svens@linux.ibm.com, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot has bisected this issue to: commit 49b0638502da097c15d46cd4e871dbaa022caf7c Author: Suren Baghdasaryan Date: Fri Aug 4 15:27:19 2023 +0000 mm: enable page walking API to lock vmas during the walk bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11fd2348680000 start commit: 7733171926cc Merge tag 'mailbox-v6.6' of git://git.linaro... git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=13fd2348680000 console output: https://syzkaller.appspot.com/x/log.txt?x=15fd2348680000 kernel config: https://syzkaller.appspot.com/x/.config?x=b273cdfbc13e9a4b dashboard link: https://syzkaller.appspot.com/bug?extid=b591856e0f0139f83023 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15d4ecd0680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1055c284680000 Reported-by: syzbot+b591856e0f0139f83023@syzkaller.appspotmail.com Fixes: 49b0638502da ("mm: enable page walking API to lock vmas during the walk") For information about bisection process see: https://goo.gl/tpsmEJ#bisection