From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: Re: kernel 4.5.1 issue at system boot Date: Mon, 30 May 2016 19:22:13 +0200 Message-ID: <20160530172213.GA1349@salvia> References: <20160523100811.GA9385@breakpoint.cc> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Arturo Borrero Gonzalez , Netfilter Development Mailing list To: Florian Westphal Return-path: Received: from mail.us.es ([193.147.175.20]:36948 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161249AbcE3RWS (ORCPT ); Mon, 30 May 2016 13:22:18 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 6837A1B5CA7 for ; Mon, 30 May 2016 19:22:16 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 5A0961B3264 for ; Mon, 30 May 2016 19:22:16 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 043F01B3260 for ; Mon, 30 May 2016 19:22:14 +0200 (CEST) Content-Disposition: inline In-Reply-To: <20160523100811.GA9385@breakpoint.cc> Sender: netfilter-devel-owner@vger.kernel.org List-ID: On Mon, May 23, 2016 at 12:08:11PM +0200, Florian Westphal wrote: > Arturo Borrero Gonzalez wrote: > > On 23 May 2016 at 08:49, Arturo Borrero Gonzalez > > wrote: > > > This was in the log of my system boot today: > > > > > > > Probably more readable in this link: > > > > http://paste.debian.net/695904/ > > This looks like an ABBA-style deadlock of > net_mutex and nfnl_lock(NFNL_SUBSYS_NFTABLES). @Arturo: Could you enable CONFIG_LOCKDEP and CONFIG_DEBUG_MUTEXES? this instrumention should provide a bit more information on the locks that are involved in the deadlock. Thanks.