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Tue, 01 Oct 2024 08:05:04 -0700 (PDT) Date: Tue, 01 Oct 2024 08:05:04 -0700 In-Reply-To: <00000000000032fa460619a3725d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66fc0fa0.050a0220.f28ec.04ab.GAE@google.com> Subject: Re: [syzbot] [ext4?] [mm?] INFO: rcu detected stall in ext4_release_file (2) From: syzbot To: adilger.kernel@dilger.ca, andreyknvl@gmail.com, dvyukov@google.com, elver@google.com, glider@google.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Queue-Id: C48E580020 X-Rspamd-Server: rspam01 X-Stat-Signature: m4pe66biub4ooeuacj6gcp3cax6hyrzj X-HE-Tag: 1727795105-378644 X-HE-Meta: U2FsdGVkX1/ZHvxy6F8EvL/UUkpj3NjfuFU8etP1yxNr7z4pFa3vmT5N1LA7PTMbIPHHvI3Ne3DCIiAT0nQa/upjbyiip7WfqCdUTvFchCkr/tWe5PO56fYwr8R7sCKIS4btp8nNHiPb4kbyfmKF5V4JGufOWVi1V+YIzxNfb2HVHqFc8TvCQSPxEuIWuWrokL4phEISStTvLGanrjTD3ac2JAqWvopDLH84LhDSORclvr+jVReD6mNG4B31k+O8sJvGaVOXYdS/xSvrOyAwtNpLDSqY9NpBJ29xXis8tdMFBat/w5F2GAIbdrmretQY4psLWf9vaB+nxKVXBKQpU87VFuL/8YTvW7vssR0koUBoGkWx6QAzNpbRPxJt01Pl7Cg4VXo+N0HioGF1mLc2nG9J5Cp/Vdv3Sekyo33F+mWGvuhy3/v8yPKSEqsAjAx4yPrd23t9YY5Jii/JVsNSdi++tfG3u+GL2VOqbKgQaxscyfUzeF9L5TafZ5+sl6X+0pNtaUVEupLDbz1dFjLIxO7ritCx2omQ9sGrSTCc7ftC74LNVJB6+DqyCNVWx3LiZ+1q96RS0ewv6OI1CD7U83OGqx2sX8wRarOr1ZGSHgIcmx+5YNo8GAnkhdFzqMil5gcuZedOyhTFHb0GzceqNw7GHd+UzePS8E/2fmN6tXwVObAHVKUruPfjmnRTwXGR9phkt77PhJSugB/rnqs7jUuiCKtvVQL1YeWHJ3ZhE1Ua22XuSI7R7uqncuBvAAFuiJfY/40LOofnzSqzxqV0j5dAmSbdrA/z0LmYbP7i4hE/wYOyHh1vADWN4SxGX3dxY4YL3k9sOF5lknbBUf2x6AxDPiAage1NIlXhPruo6ztyiRSCKGK2tjT3o1omBeZ+N79iurIySY3W2cU8kSVS2CipMzpGDMJwWmcqNnb97NXUq5Q8yj6nAHVTSiPYwb5XfIAIJoMm/5k3hw/VVlL FHB2qgAS 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 pa6h1Kft zvKmtXxsKxO74AYM3x2p96iocq5qYWXkOO2yEz+XnMQdXmYRSUtHiurw0YleZocY6+hy+/x5ZZQ= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: syzbot suspects this issue was fixed by commit: commit ae94b263f5f69c180347e795fbefa051b65aacc3 Author: Dmitry Vyukov Date: Tue Jun 11 07:50:33 2024 +0000 x86: Ignore stack unwinding in KCOV bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17353dd0580000 start commit: 56fb6f92854f Merge tag 'drm-next-2024-05-25' of https://gi.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=966dbeb548ca6926 dashboard link: https://syzkaller.appspot.com/bug?extid=9c703233282a4a1a6749 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e7abe0980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15b23f6c980000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: x86: Ignore stack unwinding in KCOV For information about bisection process see: https://goo.gl/tpsmEJ#bisection