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AJvYcCVXTpF98uljM23sy2N/X+LvfQ0FyQ3e5QH6czhDZ5L9QQQ7KhKdAso+MlEQtGe8zGl1PIzOcnxxvfC3ghvsuqx406LWTIP7GHYRsUvI X-Gm-Message-State: AOJu0Yx4Ri79iJrRWReNhA6ZDUGumkAlix2gaguqNkPYryNHgedcFhlk 5wgNaW1s4B+AYII670ReTbokOcYq22l8G2N6TCZuNps9jfXezOIc8OV/lNja8O9K/ffbO+Oqm9O OVE0QY3icKidq/P4Y4FclWA1E+06UhUVxmtmF X-Google-Smtp-Source: AGHT+IFNmXcGYu+lNSQ2iexTWqZe47HUoTeYhNiE93aW579mIfvRqJBheAkUJL1ix5bvm3wn2zyeJjyY46GinXgiC30= X-Received: by 2002:a17:903:2303:b0:1dd:65bd:69ec with SMTP id d3-20020a170903230300b001dd65bd69ecmr240302plh.20.1710855107477; Tue, 19 Mar 2024 06:31:47 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <000000000000901b1c0614010091@google.com> <2615678.iZASKD2KPV@ripper> In-Reply-To: <2615678.iZASKD2KPV@ripper> From: Aleksandr Nogikh Date: Tue, 19 Mar 2024 14:31:35 +0100 Message-ID: Subject: Re: [syzbot] [batman?] [bpf?] possible deadlock in lock_timer_base To: Sven Eckelmann Cc: akpm@linux-foundation.org, andrii@kernel.org, ast@kernel.org, b.a.t.m.a.n@lists.open-mesh.org, bpf@vger.kernel.org, christian@brauner.io, daniel@iogearbox.net, dvyukov@google.com, edumazet@google.com, elver@google.com, glider@google.com, hdanton@sina.com, jakub@cloudflare.com, jannh@google.com, john.fastabend@gmail.com, kasan-dev@googlegroups.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mareklindner@neomailbox.ch, mark.rutland@arm.com, netdev@vger.kernel.org, pabeni@redhat.com, shakeelb@google.com, syzkaller-bugs@googlegroups.com, syzbot Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Sven, On Tue, Mar 19, 2024 at 2:19=E2=80=AFPM Sven Eckelmann = wrote: > > On Tuesday, 19 March 2024 11:33:17 CET syzbot wrote: > > syzbot has found a reproducer for the following issue on: > > < ... > > > Sorry, this is a little bit off-topic. But how does sysbot figure out the > subsystems (like "[batman?]"). Because neither the reproducer nor the > backtrace nor the console output mention anything batman-adv related. Syzbot looks at several crash reports to determine the bug subsystems and in this case one of those crashes was pointing to net/batman-adv/multicast.c: https://syzkaller.appspot.com/text?tag=3DCrashReport&x=3D15afccb3280000 --=20 Aleksandr > > Kind regards, > Sven > > --