From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) (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 09832346FA0 for ; Mon, 31 Aug 2026 07:24:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788161044; cv=none; b=TaBv623SNTx3loXi8IST0jzQEPMl1xET7x4QZqvYJD+eLguBvlFRgeWXGqtH/3OfFci0fixMcVrIP5iu8dC2U6dR1VV4QIe6dn9YGMOI7z4UFH5EZSkUXYMqw+dvRAeI5e5tcX0Av2OEuXJrS7kNbNEirlXMQogjOpH7wrSggJo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788161044; c=relaxed/simple; bh=G2U+dpDhdyjhEF89ujP4g8nUUr6JGFjbMk4f99GYFsU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=IfLzsyH5gedz0MXEFK5pZOL9cb24wJRVbpAFi7fzDZo4EXv2FcNGVV4MmMTkCaBb8gBy93NJld6eW/Fu3qU/pneQDoGGZ6GelN/uBfFAjzMUi7bAgujacG2Sw0U7Cx94b5+aqxGwXt8Xu4iZFRC1AjWNJ1+5yYOFPZZ2D6s0YrY= 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=209.85.167.200 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-oi1-f200.google.com with SMTP id 5614622812f47-4b2f2b8d88fso5972106b6e.2 for ; Mon, 31 Aug 2026 00:24:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788161042; x=1788765842; h=content-type:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=h8qoGsuawWLrFjlzcIsepzotGVqYYnfivDwWIXWf/Zg=; b=Lu0TZWBQpTn42P2lLNTLA4ro0DrOQyUMX+7W53QLuZA89bRVRqZkPe9795QzDsofBH O4jysfzWRES51nAr9lRN9NmSuKxYuAMPh7h9lusgVBCwcEwi11w48AzGLsKQ5/vZ/YOY Wj2ZcHYRiCT9oDQcJVf9msss8FADxaoQ9AneRuL3bTrF5FFFL1T92NkIrmHGtqH8PZRP rrNX4kWb93j88FaFJFloVbbMkoUwy+qJyjTrgU0cqj/YNkZ7BIKdqukGDuLw23J8Sd/h XF2i7krRSusDuaQCN/mc4ZVY7GK+LWqmpjlgvcIii9/Ny831JKLwJlZ5gDIQQSCvedJN GbGw== X-Gm-Message-State: AFuF++nrqoLFEeFByC28QRNeRlw9KvS8eG4679GoO+DFhYkT+736mFO5 YhzPrNPGZpH4UbCQFNat0UIX3GQfAj1TVOGOV1SqJdqvJBHj/Z/SPcZkk2Rh9OO+pbBP43GAQl8 Pr43GyBH1BDFCNqDadLaM5oUFUl7fNoH2EN/MiE5pLGDVdV2jFZBciTVCg/o= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1794:b0:495:fb79:7712 with SMTP id 5614622812f47-4b5b0fdacfcmr1088492b6e.0.1788161042005; Mon, 31 Aug 2026 00:24:02 -0700 (PDT) Date: Mon, 31 Aug 2026 00:24:01 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a952c11.4d659fcc.734b4.0045.GAE@google.com> Subject: Re: [syzbot] [cgroups?] INFO: task hung in cgroup_subtree_control_write (2) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tao1.yu@intel.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+bb2e19a1190a556c01b1@syzkaller.appspotmail.com Tested-by: syzbot+bb2e19a1190a556c01b1@syzkaller.appspotmail.com Tested on: commit: 0e09c068 cgroup: don't block subtree_control writes on.. git tree: https://github.com/yutao-intel/linux.git fix-linux-next-cgroups console output: https://syzkaller.appspot.com/x/log.txt?x=16f4d379580000 kernel config: https://syzkaller.appspot.com/x/.config?x=31bc85a68b5b5754 dashboard link: https://syzkaller.appspot.com/bug?extid=bb2e19a1190a556c01b1 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.