From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 23AAD1401B for ; Sun, 12 Jan 2025 04:34:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736656444; cv=none; b=MbbWXu75QRq+RUV3nmlxNGN8Ndd+xu/iehI8W+bEY+WM4coscI0OeQ3f6HpFIhAZ3En3+rCtFfmfKz9tqLgxMWFZfvp2fjJCREqY/YeNEaz/SvXFiu7HMMUzfmh4T6wBoBUnbBP38Ylg70zXuZQh8p2gvIfB15gssk1TObel2IY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736656444; c=relaxed/simple; bh=TM0tNhEPuE7N6cbbigbiDdIM1xi9Q+8KRGTUDEu4Tp4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=V386i5rUrBKAKBTSsXABHiPfEOZ6KqnmqvmmZzGi3mi+Rc8Pe6R5D/z5x38+HobGWKEvBhU3Bk/LHmE4I9l/9CU8vlrU5H2bUMnan6khB6RwjlYnFAEnF2lbkbufa8XsRjquB9LG9I0zx93zHsdL4Txv/toYdUA7fbUQmdIZED0= 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=209.85.166.200 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-il1-f200.google.com with SMTP id e9e14a558f8ab-3a81570ea43so31803145ab.0 for ; Sat, 11 Jan 2025 20:34:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736656442; x=1737261242; 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=oMpZdJmkeYtA3G+Dgwmq4KJjywHeSdSEqMe7q17JRGQ=; b=iytULRhMBS8E4URIGes7HtOrGVkOGA+96d6kOsPsbQG072e8PdvMXD5Fs83fjGWBj3 cO5WtXZ4zPgzcfea/DZEQz7by/1Fq6sElUXPNJB6Jw/BsY78v6YUPU2nC6/ptXU99pq3 1sTes/Z4I/bbRniSb16/oUAOePDBQ0YytA/FHDkGpW6MiITqnQ8G8+TINR+4jN0OG0yj 6f24ZSgqtm3gBT+EMU3U/Jr+NNq3fz7JzWScjJOWPHPwQkwsYlbAe5iEZmchTThL3JSY tApieMkuDNfQwWaqqXNLZ7No2ch90/rWE7QTw2X+NVpoVqDve3Av3zgBK0BsI/VKukJG XGpg== X-Forwarded-Encrypted: i=1; AJvYcCUn9n4rkcNsuS/CdHqj21h485yIhZxQ9xyZL9ds7xrrFRSq6ewSh3X7CKvj9kskf38JDt3uZn2GmNTA5ojoKfwWULo=@vger.kernel.org X-Gm-Message-State: AOJu0Ywlt3RRKDX3u2mCo5KQit6o4YFwiHLeDTzoxtoavd/Knm2KmjVh APTj1w1M3tMvJ+829fXQfKmUdJAdh/6cLj+kugHgxEdyKNYbDvrT/xbHluTllzjNZ/fVk7VEObJ gsB+nkOxEVNQ1PtQFoOZby+JOZTrqyvbVtuuhJvhFWrPsHEMZury27QM= X-Google-Smtp-Source: AGHT+IE/3tjNIHJ4ZdK6hwTb/lARq6L/Q93iB3VD2QDt1nliWCsMrtQDs06CpwM9mR1Doc8rfH3mjB138PAkGmn8aLbklsv2OBdA Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:10c1:b0:3ce:5af3:783e with SMTP id e9e14a558f8ab-3ce5af37a81mr42541635ab.7.1736656442279; Sat, 11 Jan 2025 20:34:02 -0800 (PST) Date: Sat, 11 Jan 2025 20:34:02 -0800 In-Reply-To: <67251e01.050a0220.529b6.0161.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6783463a.050a0220.216c54.002b.GAE@google.com> Subject: Re: [syzbot] [block?] [trace?] possible deadlock in blk_trace_ioctl From: syzbot To: axboe@kernel.dk, hch@lst.de, hdanton@sina.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, ming.lei@redhat.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit f1be1788a32e8fa63416ad4518bbd1a85a825c9d Author: Ming Lei Date: Fri Oct 25 00:37:20 2024 +0000 block: model freeze & enter queue as lock for supporting lockdep bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13cd2bc4580000 start commit: 74741a050b79 Add linux-next specific files for 20241107 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=102d2bc4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=17cd2bc4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d3ef0574c9dc8b00 dashboard link: https://syzkaller.appspot.com/bug?extid=a3c16289c8c99b02cac1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=175f7d5f980000 Reported-by: syzbot+a3c16289c8c99b02cac1@syzkaller.appspotmail.com Fixes: f1be1788a32e ("block: model freeze & enter queue as lock for supporting lockdep") For information about bisection process see: https://goo.gl/tpsmEJ#bisection