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 C9AE917545 for ; Sat, 28 Sep 2024 14:47:03 +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=1727534825; cv=none; b=vBub5Id3sqKiPg0Py6G1yhkhh2SibBfjHvw/3Eg0B9it3t8Rj48uQN3g1ft6yf/rxNQvZW4w3y6KpxEhgRzjY//PlyRk5it/sjSIiN0LXWa64Dvps/4EZ/xE0LKnGUc0WIPUYI1dAbetIvbE9U9fkl3agIq6tTzl3ON8zCbrH2Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727534825; c=relaxed/simple; bh=lx7Ifb9q719owpGrIkO2jtwN2HKzH6UEVno5u3b+iF4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=nWKxwkhIKKhpO8gy0B7gqUxcwZuSbxBrFHDlwjofYFTpoi89yRrOrZXgaE6yOnM6SN0O2zY/X0XrFQ+Tgq0fQuwA4y0uLzCh4Q5NYkWELG25CY5hKf87TahKFX5e3QFTIAJka26vX1z//IsyE+zLrYS+vMvf+mMqgnOu0YVFU4g= 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-3a19534ac2fso40820515ab.2 for ; Sat, 28 Sep 2024 07:47:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727534823; x=1728139623; 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=qS3n76UGkCFfSzpWf68kEL7cLIcUZy/Q42VybJ4lvPc=; b=hBCmrX6HAU4WYpkEU/CmxIQ452XY1lbZcBdueLRfG3Pp4KjYg5Uh5qbIaBtMgm43Nt x/XOWN6fpjv5se6yP90wENH4w0g2cXMBv660ILm015E8fLnPfDvainpX7yTQjHaghgD5 tYef4PlLae4OWvN6IKEQQiHwixbNrv0chiGvhKY5dqd53L3H6KOHlqev1ZW5EgOVg/BI BBPIKJ2AB/dn45XhZlBwNhQRn46BGPOFKjF2QaMxJOWxBpWcQsVcniVxUovsNPmIWk3o FP1C4VqrjG++P1xwsatqB8gHg4UOeVsIeSo+U1Dhqx1G2O9FgDi0w4K00LUDPf/gPQoO RT5g== X-Forwarded-Encrypted: i=1; AJvYcCXCoK47glWnVLpJlDDlOTYHCwyLXMU2ETuD16dPVrkVyyUPwTyfERYSiUqII1SoYEeJnY57Nn2/gDNr610=@vger.kernel.org X-Gm-Message-State: AOJu0YydelI0rddAh0JU0nOurvG3w57o2RUq7A1+DeTxvX9YUgxR4cct nlKwX8AuoLhZFm5hr48vCnwnRGkosU/KECQAgMASGXNeYXGXY6c7uB/QksY3F4q/iE5LaUPyJ8C weTsd5+2GY3qMwbT45M+6vJn1Pzz6CAkIM/Ev8hJKuHC8o5E3IGhBIlU= X-Google-Smtp-Source: AGHT+IFQPRWXJ8MlIWkc8iJvXKX8p5A6JpNeYO/NKPlG50WuJZZ4zc7BrIPosH16IdW8xqGLrFONOFk/JPLQ+xYj3mCLBIvJNAzl Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a08:b0:3a0:92b1:ec3c with SMTP id e9e14a558f8ab-3a345161e57mr58864265ab.4.1727534822873; Sat, 28 Sep 2024 07:47:02 -0700 (PDT) Date: Sat, 28 Sep 2024 07:47:02 -0700 In-Reply-To: <000000000000aefb4d061e34a346@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66f816e6.050a0220.aab67.0004.GAE@google.com> Subject: Re: [syzbot] [net?] INFO: task hung in linkwatch_event (4) From: syzbot To: bsegall@google.com, davem@davemloft.net, dietmar.eggemann@arm.com, edumazet@google.com, jiri@resnulli.us, johannes.berg@intel.com, juri.lelli@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, netdev@vger.kernel.org, pabeni@redhat.com, peterz@infradead.org, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com, vincent.guittot@linaro.org, vschneid@redhat.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit e8901061ca0cd9acbd3d29d41d16c69c2bfff9f0 Author: Peter Zijlstra Date: Thu May 23 08:48:09 2024 +0000 sched: Split DEQUEUE_SLEEP from deactivate_task() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13ce9e80580000 start commit: 075dbe9f6e3c Merge tag 'soc-ep93xx-dt-6.12' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=102e9e80580000 console output: https://syzkaller.appspot.com/x/log.txt?x=17ce9e80580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b2d4fdf18a83ec0b dashboard link: https://syzkaller.appspot.com/bug?extid=2ba2d70f288cf61174e4 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e2c507980000 Reported-by: syzbot+2ba2d70f288cf61174e4@syzkaller.appspotmail.com Fixes: e8901061ca0c ("sched: Split DEQUEUE_SLEEP from deactivate_task()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection