From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DF3EE2374A for ; Fri, 15 Mar 2024 13:07:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710508026; cv=none; b=uMBRyPy4dNB3Inb5QJ51977z5t4MO7P7d2ezKVdRcRgAEZ2nWeqWheuHxSc4uKOBnp8tWY5aA/Ih1gJq+MUT03yGNH/ZNF6VXIx0JtrPZ+BJONHPqrNVoWLQPQv8V748y0Lc3Jd1LEYgz0Ey2NJ4hM2f8x+58nmZhc1hrB4w4qU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710508026; c=relaxed/simple; bh=Zk1+QM8Mp7D6C4Ax3bAQLs0hyyOiEgbA7bCMgIKQ2ZY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=CYNkBTklj4vjJSQVACRljEJRBql7P86QNhd1+VRRoq7GrEF9C5pcp9EU7q0p8XrutnLMX+bOQ9cVOMNqbnUFitJ33k4E0/Vi8ioEfrnupCYVEISwHt9Lxi82uQ5kX8vUzWG1NctwECLSYPfiMZNjALGHRaDLWoUD6R2msFnrXgo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f69.google.com with SMTP id ca18e2360f4ac-7c874fb29a3so146010139f.1 for ; Fri, 15 Mar 2024 06:07:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710508024; x=1711112824; 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=GUpBZioC/dn8Fi5qWaAgB/XKmxFecPjr1f5eBhNHbfc=; b=GMBBMx6DQfK29DcoUVQ4ZOZlnHeqn0Ngu5fLwjohfgnPM9c7wBKb/Hy1iubCbMCQSj FyUAymMpAe0Me272bxx9DOj/kIRbyAMOcirTzWCtyUYIdGwddwzJmS7mFCPqvMjkbXKY F2qegzne+pmGzOgAcjdE8hvFtTZWc9qdgrO7H49RT90LnsYX8KtrgbdlQMERUFb/rAco hflkt0RHi4VkQZpMIVw/PUOGsFGYkfVZyL4fOniFdbbGMp4GbNn/bSKtw18abS8hhkfE WPeEHv5wztVIKf252QrqZ098GFpnolVB0cJ8wBNM2j1PzMaFTpGxEcJPjZ+RqoHe5CW/ 1KeA== X-Gm-Message-State: AOJu0Yz+lmEyjr6HfG6GFyq0xmJQzayBfFWdREJRMmIW0ynQe89WowLg 7XFtS8MGFIXX9jNySStxY7AEvu84ZtjDKdity3Xwh3KvWzlD0Pzjut+mwILxQyznAG93gfFTdie jdQkS+ed6ZP0155th2bx1bJg3B+kZjLMPVJY/sU+x5sDF4SR6h00UXbmFXQ== X-Google-Smtp-Source: AGHT+IH6HawuAmz3XIpz8TEkIlnF1hWQEXhjEgar1mM+g/YbxEJmMhh0kmD4hvaWWh/9GfhvbJ9S9wmz3CODTooSOb76gaPtVjgu Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2165:b0:365:26e3:6e47 with SMTP id s5-20020a056e02216500b0036526e36e47mr253652ilv.0.1710508024164; Fri, 15 Mar 2024 06:07:04 -0700 (PDT) Date: Fri, 15 Mar 2024 06:07:04 -0700 In-Reply-To: <0000000000000b9a510613b0145f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002a81490613b2affb@google.com> Subject: Re: [syzbot] [sound?] possible deadlock in snd_pcm_period_elapsed (4) From: syzbot To: linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, perex@perex.cz, syzkaller-bugs@googlegroups.com, tiwai@suse.com, tiwai@suse.de Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit beb45974dd49068b24788bbfc2abe20d50503761 Author: Takashi Iwai Date: Tue Feb 27 08:52:45 2024 +0000 ALSA: timer: Use guard() for locking bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=148a87b9180000 start commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=168a87b9180000 console output: https://syzkaller.appspot.com/x/log.txt?x=128a87b9180000 kernel config: https://syzkaller.appspot.com/x/.config?x=4d90a36f0cab495a dashboard link: https://syzkaller.appspot.com/bug?extid=28c1a5a5b041a754b947 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14835185180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1132fbfa180000 Reported-by: syzbot+28c1a5a5b041a754b947@syzkaller.appspotmail.com Fixes: beb45974dd49 ("ALSA: timer: Use guard() for locking") For information about bisection process see: https://goo.gl/tpsmEJ#bisection