From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 4B263748D for ; Thu, 28 Dec 2023 12:35:07 +0000 (UTC) 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-f197.google.com with SMTP id e9e14a558f8ab-35fedd5e6beso42657955ab.3 for ; Thu, 28 Dec 2023 04:35:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703766906; x=1704371706; 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=rDCjNsm95xS92ZHtQN4fTUOS4WdKJ+Sip/VFAsOxNcE=; b=hgE2nJl2bzpKYgggi4hf2B+AJCuPUStyY4kAIoz8eqqBequHsW8LwnobB5SKruMqBf 5GXwhk/5tC7TTspvl87u8C4encDsh7Wcaf94Y6Y0ukvpMlNbdxup3dRQQpr2Glkeh51P u8qYz39unCtObbbK7tC+o84joJBGY8msGkB5N7Y0cijj1+PjBX3OZ9rnTiAU8xTWnEC6 mu5h9PGiUvAYSA6YF3I8gzqkc3lcrel3to2tVjf6sX4rZ+4HwWe7dtCsiJJghPV6CavW wOWTDvuLv6/+1D8zyc/vR+X4MGteC0iFIJS4wYon/jagTbOCH4Cy533kDsPeO2CMB1/E bUFA== X-Gm-Message-State: AOJu0YyLPXcNmErbZlst9z9x4TatBhpfHRZ/TG4g7vXl/VurgFZXt5nq HerE+F13zvOqc2I3WbDw7YNKB8DxDemdY0YBDGhpcBy4IIuY X-Google-Smtp-Source: AGHT+IGIHTWMfWZ/Cgv7K3bGHLRRjlLV1SVj7M/090rf4K3vA5kUlptQ+z1492p2X5La8faqQ/bGtq7rQ6QFm197uz3zihLSl8gd Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:20ea:b0:360:17a7:d897 with SMTP id q10-20020a056e0220ea00b0036017a7d897mr478109ilv.4.1703766906470; Thu, 28 Dec 2023 04:35:06 -0800 (PST) Date: Thu, 28 Dec 2023 04:35:06 -0800 In-Reply-To: <20231228120639.1817-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003d8bf5060d91251f@google.com> Subject: Re: [syzbot] [net?] INFO: rcu detected stall in fq_pie_timer (2) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5978 } 2756 jiffies s: 3785 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: f5837722 Merge tag 'mm-hotfixes-stable-2023-12-27-15-0.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master console output: https://syzkaller.appspot.com/x/log.txt?x=1743f3e9e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=c7bcb8f62f1e2c3e dashboard link: https://syzkaller.appspot.com/bug?extid=15c3ba3f7ca8ced0914d compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=16684981e80000