Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761959AbcJ1VI1 (ORCPT ); Fri, 28 Oct 2016 17:08:27 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:48407 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752865AbcJ1VIZ (ORCPT ); Fri, 28 Oct 2016 17:08:25 -0400 Date: Fri, 28 Oct 2016 23:08:14 +0200 From: Sebastian Andrzej Siewior To: kernel test robot Cc: Trond Myklebust , Anna Schumaker , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, lkp@01.org Subject: Re: [lkp] [NFSv4] 931437ee2c: BUG: sleeping function called from invalid context at mm/slab.h:393 Message-ID: <20161028210813.6uqeblto2lymdf3b@linutronix.de> References: <20161021164727.24485-1-bigeasy@linutronix.de> <20161025065239.GC3341@yexl-desktop> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20161025065239.GC3341@yexl-desktop> User-Agent: NeoMutt/20161014 (1.7.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 901 Lines: 27 On 2016-10-25 14:52:39 [+0800], kernel test robot wrote: > > FYI, we noticed the following commit: > > https://github.com/0day-ci/linux Sebastian-Andrzej-Siewior/NFSv4-replace-seqcount_t-with-a-seqlock_t/20161022-013104 > commit 931437ee2c100a50c36771c947ce3674f8160592 ("NFSv4: replace seqcount_t with a seqlock_t") > > in testcase: ebizzy > with following parameters: > > nr_threads: 200% > iterations: 100x > duration: 10s > > > ebizzy is designed to generate a workload resembling common web application server workloads. > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu kvm64,+ssse3 -m 1G It can't get it triggered. In fact I never get even close to the code path. I tried NFS as rootfs and this test of yours. And I tried "xfstests-dev -nfs" with no luck. So you have NFS as your rootfs. Anything special on the server side? It seems to be a basic NFSv4 export. Sebastian