From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 820FC273F9 for ; Tue, 7 Jan 2025 23:18:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736291885; cv=none; b=szpkMFn+dKOaNm52fpNALQzff97Oxa70Ppsy/X/4BrxnQg25TX90ljEQ/oMlVx6x28J+XuFMJvW1kFktUmAjhIMdDC6XNBGPLabisSjuD19mfd44IG/Ha8MWjGC6VXKMk2m8RzE4ZHW+FU4HyREKTLK4+CqwkE1cTO0zz+CajAk= 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=209.85.166.198 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-f198.google.com with SMTP id e9e14a558f8ab-3a91a13f63fso142300735ab.3 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=ahyv5TGD/J5jW2QWRlkXul6wWuuBmqrrAsNgJ+eNHXtfDl+DsMrUPV0BQmDxjgSTNm aEekXIXj5sODjrwTVqHNn/BS5H96p+U20euCTJoXe0VuVFbTANpfjPGY7BgWAeVc2Nz6 LlNSBXhp2vv1d1JksndBg8wOhxyRBxya/v2pCKY49oEOTGoFmGrlLGw1jQu2VKMHiVhL y9Cmf11VcGuwSj1CCu/gSQ3uRV9BzhWixG1WeFPpMRKy1dqcCr74VJqkJCxNNRttdYoM EljB9tnSLveQSrH0A8MtQH+Z3u+co6gWWnMD8kAf0wEKIcfBijmafaWyKI1Nf0B4HEsW 1orQ== X-Forwarded-Encrypted: i=1; AJvYcCUbXPLUWT/qn4LYiAYFB63RfJQh/tUT16snS8qArwOK7UOZ5UmPjk2tW/Non7TKZ3Vz+b5er655KCtcZ8o=@vger.kernel.org X-Gm-Message-State: AOJu0Yw2/On4Lb4mCsd1qLZ0Ib9XiOFxIP1tUe9rhRbU2Ix11E1Ifbaf ThTdA2z53waGSSoWYnmA6R4oImayR1BG9bbN9lKKCJW4SJNel44ZuFY0Ft00rr/eWjzG5rt1HEO Z5FasxHgmYliHnN9Rca8m/PAl9uZuA3ghkVGVzJ7Uy+m9XotoumLABa4= X-Google-Smtp-Source: AGHT+IFgrotYn+sT5XPnap5oHb8Kvw1H5ws/ZQCEbslqVW08fmBFMuSLvr1BLmudUKkmq45Kf7n9+Cwa4C5vMNacVqV2Ww6dp5Ir Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d8f: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