From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 83267192598 for ; Tue, 7 Jan 2025 23:18:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736291885; cv=none; b=P3neUXS4qcpALC+1eZUBXjNafV0/+jzYCmC3G+GH4zHIuRlXMPBqlhOgQyXuqWgnnODuxQARUMu1hG8f+rW3bjHbCe7KoPyN6yrNbJLajzpch5cZV0hJ6vIRFfDvkno8q2Xz9Gvu2cLT7MOi732YVrJcVuTiIGFiSClwYiWOvZM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736291885; c=relaxed/simple; bh=7edG1e9h/zaRrHdIoCHk/QyHwH5jMmAJD6Ry1+9DpYQ=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=L6BZ4GV0yNsKOzQDL5/0vPjswT0YMlZ6SMXsdOOTkhMNWr6ZHZDrhynH0XYu0Qsw9+3LrHFY7Q4IsWBeKXXVyeRTg1Do8BFpkxvVCQbjqVn1pIIQhTyLj+ZEJ4agQarJvau2hRZWB3vgFYjdBO5AR4QnRNBD/Gsk0opQnu6qwkw= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-3a9d3e48637so168778775ab.1 for ; Tue, 07 Jan 2025 15:18:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736291882; x=1736896682; 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=mVozRCOrP9j7sCIgLYFIaV3W/G9uw4bVVy5oL1ovDjk=; b=dMqeN3rSFf4GT0G4k1wsL2KyRUu/CakngdMJNnRbi62nEHgF2zHRfhjZiKC7p8kGdT HzbCwhl0ILhMnIdNbP5NDBZzdxisiOjzCK7WRxMiaFxv/WADi1taOgOqqa49L5yA5Z1M cQUV8jepPASt3MxZi+J+MoMUi3cUq1Mv7rjtbY/HF8KgubOQAkb97B3szEabx7R/uUeu Oh6iE9IqVrjqT0pnrqWfVgM6Oa50kXcFfhrWR9sXhJjiKQ2JN4SU05cukozfCkEww40m Z8oryjE1oAribnfgQB6vg9tZ4EcaKX5uPaXziBwbAoXuOOB9rEUc9kD4t9JFjkUtOeQd 652g== X-Forwarded-Encrypted: i=1; AJvYcCUD6ZzoDKqBxTVI8Pf9yPiy1m62NDbuJu3Ii6dumyWZnTFO5PuG8W8d1j9UdAUaDVvBOFA9/w4=@vger.kernel.org X-Gm-Message-State: AOJu0YxFDpmKO8GhmRkMSZMYayTTrkMPG5lT/i3ekfk+5+fFxuaWbcty 3uSxqG4QtkcMG4xxabNaILVpAy+ao48jZARHlQpsio9quB+vdDv5TLu3EC9DOEpUl9nKRdzAsus PE/uqgRUG7JmBsvRzbKmyItNuVlwZ0ClhpMoW7lt7Vx1nPmrNuIznmrU= X-Google-Smtp-Source: AGHT+IFgrotYn+sT5XPnap5oHb8Kvw1H5ws/ZQCEbslqVW08fmBFMuSLvr1BLmudUKkmq45Kf7n9+Cwa4C5vMNacVqV2Ww6dp5Ir Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d8f:b0:3a7:91a4:c752 with SMTP id e9e14a558f8ab-3ce3aa76a9bmr7369395ab.23.1736291882724; Tue, 07 Jan 2025 15:18:02 -0800 (PST) Date: Tue, 07 Jan 2025 15:18:02 -0800 In-Reply-To: <6730d6bd.050a0220.1fb99c.0139.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <677db62a.050a0220.a40f5.0026.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in sys_pipe2 (2) From: syzbot To: akpm@linux-foundation.org, bigeasy@linutronix.de, edumazet@google.com, kerneljasonxing@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit d15121be7485655129101f3960ae6add40204463 Author: Paolo Abeni Date: Mon May 8 06:17:44 2023 +0000 Revert "softirq: Let ksoftirqd do its job" bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1668e4b0580000 start commit: 9268abe611b0 Merge branch 'net-lan969x-add-rgmii-support' git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1168e4b0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b087c24b921cdc16 dashboard link: https://syzkaller.appspot.com/bug?extid=693a483dd6ac06c62b09 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e7c2f8580000 Reported-by: syzbot+693a483dd6ac06c62b09@syzkaller.appspotmail.com Fixes: d15121be7485 ("Revert "softirq: Let ksoftirqd do its job"") For information about bisection process see: https://goo.gl/tpsmEJ#bisection