From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 B236E194C7A for ; Sat, 16 Nov 2024 23:33:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731799984; cv=none; b=A8calaTzl+Hp1Zhjcut5V2rDbtumGkZq3NUCOaYBDLa4ckK0GGmArmNuPOP9dFeW6nFEkIQjRYFFCWK3hEil9nO6sz9oqUAF0npcFzowyI2dykAUyw5nzSJHrWi3Hle3FrBA6rHM0vXpJs0vrS/xMi71tBe4WYfm9SPUMEC0LQk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731799984; c=relaxed/simple; bh=ozfUCCvHD7H7cQd7d43iIoXCIgVvNpJ7H82PLjvW++Q=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=iK+ldoP+mBl/HFe56PUZXTwLRkppLZ2EMkZ+LyyjZCyHtFrmstxCbOPOhaZQVxVhQN+5LsfstMVnx521vCTDDBryQQwruYSPolo+IzInb5UoHhcnu7L06YVRWJ2GdqleQ7iZcaQhUWdkEqc3kVhEv9jVtIWFBw49dG2kjxwIHHg= 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=209.85.166.71 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-f71.google.com with SMTP id ca18e2360f4ac-83ab3d46472so309663739f.2 for ; Sat, 16 Nov 2024 15:33:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731799982; x=1732404782; 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=6pPDlMybPfT5VSrJgcwp4WOC86rQWqblOSy8gJogtjg=; b=S296TGFJww4IKtlm5irikoGPS5RT9uaYpM0VUpTOrtDisK1RMLr7xiqdLFGKoadds1 i4q8TuSmAyOyTcmpNeOIcR3mBgq0zmtbNS/tbv+ccqSR/E3o6AK7fDC9CZCgHLz49fF/ oPAe9CAHORxKWyx4xnuGVhXtrezKNeNLTpJEJUtppH61Dn82O3tNSdH2fz5vhK4CPNBK 22/8ysY11mgB91E9zQH9t7g7InO3c2DT//RxIyKuHQPl0Me98Mwwe/RLZq9H5fNFXYJN 00unIBVipxRIW/SRoC0RX1jDbhO/U7UKU5obpp9wVFxa2T8kpVQTBx7j27T4SDPF0XjS X/uA== X-Forwarded-Encrypted: i=1; AJvYcCWwQ77M9NN5BrRG2XWqvNl9kR3C2cvA8NdyVmFLqgJjwbzsfVe4SwVsdZ9c1vXdef2USd14/4bnYypHUSw=@vger.kernel.org X-Gm-Message-State: AOJu0YzOb6QmNsltLvuckFpQw8pHnyFD7tgIchUGoC9RhTUokHNqehsH wSAg6Kal1oEfnnfFzivkMuWO5PkRxJha8IW8+zOp9UsesDA54nRdQWx+omkYy5pjb3gdni0z0jN Qomv5kwfbYQrmEWarYcaF7z4xMQBuq+34XB2VE+m3IGjdjPUsXlYbiz8= X-Google-Smtp-Source: AGHT+IHxQ9I2yZYOzjRu/LCFRev0gwqeF6CbR7jTx9glbHmeTnAWQobIRQzimgpPUOzK4oLe2zqzYITldOsYwITjPA3qJEI3bt+k 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:b43:b0:3a7:158d:6510 with SMTP id e9e14a558f8ab-3a74800e163mr69240285ab.5.1731799981891; Sat, 16 Nov 2024 15:33:01 -0800 (PST) Date: Sat, 16 Nov 2024 15:33:01 -0800 In-Reply-To: <67336557.050a0220.a0661.041e.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67392bad.050a0220.e1c64.0009.GAE@google.com> Subject: Re: [syzbot] [block?] possible deadlock in loop_reconfigure_limits From: syzbot To: axboe@kernel.dk, hch@lst.de, 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=129b52c0580000 start commit: 929beafbe7ac Add linux-next specific files for 20241108 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=119b52c0580000 console output: https://syzkaller.appspot.com/x/log.txt?x=169b52c0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=75175323f2078363 dashboard link: https://syzkaller.appspot.com/bug?extid=867b0179d31db9955876 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11b520c0580000 Reported-by: syzbot+867b0179d31db9955876@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