Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756191AbdDPPYu (ORCPT ); Sun, 16 Apr 2017 11:24:50 -0400 Received: from mail-pf0-f169.google.com ([209.85.192.169]:34380 "EHLO mail-pf0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755912AbdDPPYs (ORCPT ); Sun, 16 Apr 2017 11:24:48 -0400 Date: Mon, 17 Apr 2017 00:24:41 +0900 From: Tejun Heo To: Andrei Vagin Cc: Li Zefan , dvyukov@google.com, LKML , Cgroups Subject: Re: cgroup: avoid attaching a cgroup root to two different superblocks Message-ID: <20170416152441.GA27278@wtj.duckdns.org> References: <58E7532B.4030505@huawei.com> <20170414232737.GC20350@outlook.office365.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170414232737.GC20350@outlook.office365.com> User-Agent: Mutt/1.8.0 (2017-02-23) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 429 Lines: 17 On Fri, Apr 14, 2017 at 04:27:38PM -0700, Andrei Vagin wrote: > Hello, > > One of our CRIU tests hangs with this patch. > > Steps to reproduce: > curl -o cgroupns.c https://gist.githubusercontent.com/avagin/f87c8a8bd2a0de9afcc74976327786bc/raw/5843701ef3679f50dd2427cf57a80871082eb28c/gistfile1.txt > gcc cgroupns.c -o cgroupns > ./cgroupns > ./cgroupns Reverted the patch for now. Let's try again later. Thanks. -- tejun