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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" X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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