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s=20230601; t=1710855108; x=1711459908; darn=lists.open-mesh.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=YRVBERukyS2wWGyjoD0/ZHq0bNlTnq8NUQZ+B3xdj80=; b=wMeXr+ADrizlwyhua7Y0+aPeEx96yCimYt1P8cVMczPAn4kIQ5x9J2bFm5SSW5xLxD p88+rdFqWpcpi4j+rpAQMQU7OX9m5yDxtkQ73m6k3pOBNs1R2ivu2wKqhd30lHU77w26 iXCHzcsAfMcsZTbf1GMO878JwrzFP6Xajkb0Ytl7rJq0EU7HjS8UJosowgnI5B6fAwe8 SD2l9IteqGRiY+1csT3cKjkHFUW+/W6FWWOvinBnGgi0A387QQPZFVo6rNQdlefG/dvC bVhJGytmMvG6Zr/iCShP2mhLFhm57gg9kzPul8F43eFQN3O6HSl/dF5Dk9GlT2zC63SX Nzgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710855108; x=1711459908; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YRVBERukyS2wWGyjoD0/ZHq0bNlTnq8NUQZ+B3xdj80=; b=E8wULU4JzjVbAgon06MWxGPuWDgKenpm9h/T+CVzOeRLD/PNvr5soS96w0JEwYl45i tIKRR+GdsaJ/Mo3Muc83EUnLqqRA8TO9XdStnHc+4vrtUIHWQUI1t2L6Twn7JXhhupyp VBjxKcQfQ1tk6JT5TgmOGKfzhfmqOnWE5ZEzRA/Ed0ewOSyFSiVJdCZB25cC+EddTE7d RRvES/q/tGDJXzDZ0ys+bR2bGmvXypb2nXlFPPLBKwR8hfhOPWfTwKPi6ooQNubCMNl3 RV+YU29sGbhTWB3uaUh1hLsGrG6WoeQ4eKdjBo83G4ngUSAelz8vExeH35/UIKD7qDiJ 4Oqg== X-Forwarded-Encrypted: i=1; AJvYcCWmIiJH8qKxsySrJqFAKXovIc/V2fVCDJVg8MpIru2IVmjaBFcx4l9U/sCZvNqThfEls1MTew2LSc/cdmawGGaSX6rwBDommOv0aCD8ZFMs X-Gm-Message-State: AOJu0YwfHCgF/Lcba7RNHhJoaoMyllYj4h/4+2A0vWgMXvu9YET8CCdj KGXyMBdWXqb3Y+oB7wnUbPpo99gdjI0qyv6SrPYISAh0wnh7ZKYlbBLQJZSS27TQW1OPqHYxiUU DGhxVybrEGF8Cbsow/TaVglCetCkONW2TiPaL 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) 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 X-MailFrom: nogikh@google.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-b.a.t.m.a.n.lists.open-mesh.org-0; header-match-b.a.t.m.a.n.lists.open-mesh.org-1; header-match-b.a.t.m.a.n.lists.open-mesh.org-2 Message-ID-Hash: 7ATF2IBRIFQKRWYLGALD7O2DNWT32LP6 X-Message-ID-Hash: 7ATF2IBRIFQKRWYLGALD7O2DNWT32LP6 X-Mailman-Approved-At: Tue, 19 Mar 2024 15:03:31 +0100 X-Mailman-Version: 3.3.8 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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 > > --