From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f72.google.com (mail-ot1-f72.google.com [209.85.210.72]) (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 6D86028686 for ; Mon, 31 Aug 2026 03:50:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788148207; cv=none; b=shnNSQaJfyKHwPd9i5lL01NaGDAm4Q+jIC8qnCJ8HcmpUmG6Qav+UO1qgdRYjOkHIVEKhieXC3E3mMMAhjUrXencgZ5dmExKzH0/spfgeOWQF4BfhmfdFaxxZl+2n1BF6SASsq/BN9IFi5m9mpq/XeyShGnj1K+ltnhlB6TpfBo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788148207; c=relaxed/simple; bh=jOdS/HV7WwSa5Ptct08Ttf2QIUoerOH3a8Ty5L/pKC4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=BnJRkREmytOypOu5Vb2sVWAjoHr/BCmLfcZXgfOM3nv4dgJLCz15Cl0Gn2t3BcehEf7Vci5sgR3rENBUAC+4uKKdQRDtT7A6nyeWoa5E+LBzh7k85Ja/1o4g1iMK9PwF5IdYnHoiA3ZsBl9i5QwLZnwvmNqhYmB2DfeRRy+QUqM= 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=209.85.210.72 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-ot1-f72.google.com with SMTP id 46e09a7af769-7f36427abfdso3965221a34.3 for ; Sun, 30 Aug 2026 20:50:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1788148202; x=1788753002; 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=RGCT6aQm8aeZEUJ1GXMx2H1TiFBUhO1+WRgCr6TRRKg=; b=LmREjqCjhX3TsKLw7WSki9O/t4/Z3vxNvxp26+EFrLqziBwJSIRrtkaevyFDb3dC/p 4GNsH/udpe8v4mvar1UvAtF+cGZkCX55IXTnwlY7GO2yALQ8iALZweX9/9HUZTSe/9Kd CTtGWTOpM3hwiwiisEPjSX6kQFLrPveTNAIueEf9NaxRYNOJagoidXuks9tK+2RKwmAF Q1shPkbhga0tQbWctauXZyVLwKU7MAFGo8Od9YsFa7xZDyVZhGkoebtnm0IGmOHjipll N4eO5M6dojACihl/9VumR0UWlJ5X/3M69Yk3VahnDzpYOz8l3T3FxuSuHzpoPpu2Cu3O uIng== X-Gm-Message-State: AFuF++ke6GkoxCj1h8//meKbRH/XFBWrau1AY68sDeqI6Ua/COZF2P8U gjMExfSqD7eWlBQtO1pO8suayC4Iqa+eBlvDQQNAi6omBoLzAFkHe5BhLEd0/pseA1zK83ZBLal f1BaPGqceypMII6IzjFgbKlDLcef+1bOQir9G9jq9yyGoV023LjXBSXRucgc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:a085:b0:6a1:4507:3544 with SMTP id 006d021491bc7-6b1c66a71b8mr19327423eaf.28.1788148202635; Sun, 30 Aug 2026 20:50:02 -0700 (PDT) Date: Sun, 30 Aug 2026 20:50:02 -0700 In-Reply-To: <96064883-7d31-4ba9-b849-bc29f734afcan@googlegroups.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a94f9ea.4d659fcc.734b4.0042.GAE@google.com> Subject: Re: [syzbot] [block?] [cgroups?] possible deadlock in blkg_conf_prep 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 but the reproducer is still triggering an issue: lost connection to test machine Tested on: commit: 74b69790 blk-cgroup: use GFP_NOIO for radix tree prelo.. git tree: https://github.com/yutao-intel/linux.git fix-linux-next-block-blk-cgroups console output: https://syzkaller.appspot.com/x/log.txt?x=1781ec15580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c5c3949d762a91f dashboard link: https://syzkaller.appspot.com/bug?extid=144a1c0e22e53a08ef5a compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 Note: no patches were applied.