From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-179.mta1.migadu.com (out-179.mta1.migadu.com [95.215.58.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D013113E03E for ; Mon, 19 Aug 2024 08:06:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724054794; cv=none; b=tvYq8m+OlqA+CwKiEoAPrVDeTVtg0q+MVN+bRDdrvuSapiBFE5WQJkNtGCghfg/s0ZTD/YdI9Km6YKQNXyODq/O3Pime6rp8ep+z3qJtYRAiWmRc+3KYDTytJKDGiuOhhSWYE88Scqmorbk5dafJOSt9ib56N1cMwKNby+svfjM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724054794; c=relaxed/simple; bh=QrhkplzZ3C1wQsKojQLSkMO9AP8r2EkZYjP5r4HsDwg=; h=Content-Type:Mime-Version:Subject:From:In-Reply-To:Date:Cc: Message-Id:References:To; b=ecvQlNgu3Vg1uD/KHkwsM4cNz7k6QoJZ9cyDfsTESTzcFisRi9hGX+/yAI0Y08cSgcSO2ALwwaAbIsWN5TCBvqDzwMzNsYHp/d4ZJFsbH52D8gWa9Bed9ytY4E9nA3QIyYPLP/TFsFjxhpR96q5OXg5KvD2XUEUzRjy5TQkfcPU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=WZMFY9Fs; arc=none smtp.client-ip=95.215.58.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="WZMFY9Fs" Content-Type: text/plain; charset=us-ascii DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1724054788; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KGKlfmVH3LtzPnGo4UI3D1e5HnpdM5cATPN6KN5WYuo=; b=WZMFY9FsjKIVqUC/CRbiorNOiNC+loMz1N+EbLC2aIU5q84BYb/2rfyLzwwBCa6Ycls+gv 6un6CeNucq7NwI9ArNkVjbj6vgEvRSaZ6PULDGvIEfYa0hI8jFhnKOs4l502Gin4DIgX+b sCiK/CoqoVT9PaeML70C7QnZ0MUfhz4= Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3776.700.51\)) Subject: Re: [syzbot] [cgroups?] [mm?] WARNING in folio_memcg X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Muchun Song In-Reply-To: <0000000000006f7e4d0620042b96@google.com> Date: Mon, 19 Aug 2024 16:05:41 +0800 Cc: Andrew Morton , cgroups@vger.kernel.org, Johannes Weiner , Linux Kernel Mailing List , Linux Memory Management List , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song , syzkaller-bugs@googlegroups.com, Vlastimil Babka Content-Transfer-Encoding: quoted-printable Message-Id: References: <0000000000006f7e4d0620042b96@google.com> To: syzbot X-Migadu-Flow: FLOW_OUT > On Aug 19, 2024, at 15:22, syzbot = wrote: >=20 > Hello, >=20 > syzbot found the following issue on: >=20 > HEAD commit: 367b5c3d53e5 Add linux-next specific files for = 20240816 > git tree: linux-next > console+strace: = https://syzkaller.appspot.com/x/log.txt?x=3D11be396b980000 > kernel config: = https://syzkaller.appspot.com/x/.config?x=3D61ba6f3b22ee5467 > dashboard link: = https://syzkaller.appspot.com/bug?extid=3Def4ecf7b6bdc4157bfa4 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for = Debian) 2.40 > syz repro: = https://syzkaller.appspot.com/x/repro.syz?x=3D147469f5980000 > C reproducer: = https://syzkaller.appspot.com/x/repro.c?x=3D153c5ad5980000 >=20 > Downloadable assets: > disk image: = https://storage.googleapis.com/syzbot-assets/0b1b4e3cad3c/disk-367b5c3d.ra= w.xz > vmlinux: = https://storage.googleapis.com/syzbot-assets/5bb090f7813c/vmlinux-367b5c3d= .xz > kernel image: = https://storage.googleapis.com/syzbot-assets/6674cb0709b1/bzImage-367b5c3d= .xz >=20 > The issue was bisected to: >=20 > commit ebadc95608dc3ee87ad4e5dc4f2c665c709bb899 > Author: Muchun Song > Date: Wed Aug 14 09:34:15 2024 +0000 >=20 > mm: kmem: add lockdep assertion to obj_cgroup_memcg >=20 > bisection log: = https://syzkaller.appspot.com/x/bisect.txt?x=3D170875f5980000 > final oops: = https://syzkaller.appspot.com/x/report.txt?x=3D148875f5980000 > console output: = https://syzkaller.appspot.com/x/log.txt?x=3D108875f5980000 >=20 > IMPORTANT: if you fix the issue, please add the following tag to the = commit: > Reported-by: syzbot+ef4ecf7b6bdc4157bfa4@syzkaller.appspotmail.com Thanks for your report. I've fixed this in patch [1]. [1] = https://lore.kernel.org/linux-mm/20240819080415.44964-1-songmuchun@bytedan= ce.com/T/#u