From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [GIT]: Networking Date: Tue, 16 Jun 2009 11:48:13 +0200 Message-ID: <20090616094813.GA1686@elte.hu> References: <20090615.050449.144947903.davem@davemloft.net> <20090616091538.GA4184@elte.hu> <20090616.021955.243374916.davem@davemloft.net> <20090616104417.657d6682@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: David Miller , torvalds@linux-foundation.org, akpm@linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Alan Cox Return-path: Received: from mx3.mail.elte.hu ([157.181.1.138]:40768 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751438AbZFPJsV (ORCPT ); Tue, 16 Jun 2009 05:48:21 -0400 Content-Disposition: inline In-Reply-To: <20090616104417.657d6682@lxorguk.ukuu.org.uk> Sender: netdev-owner@vger.kernel.org List-ID: * Alan Cox wrote: > On Tue, 16 Jun 2009 02:19:55 -0700 (PDT) > David Miller wrote: > > > From: Ingo Molnar > > Date: Tue, 16 Jun 2009 11:15:38 +0200 > > > > > [] __might_sleep+0xf6/0x120 > > > [] lock_sock_nested+0x3d/0x120 > > > [] x25_destroy_socket+0x22/0x180 > > > [] x25_destroy_timer+0xe/0x10 > > > [] run_timer_softirq+0x1d9/0x2e0 > > > [] ? run_timer_softirq+0x120/0x2e0 > > > > What on your system is openning x25 sockets? Some stress/torture > > program that opens random sockets? > > > > Or have you gotten into packet radio recently? :-) > > packet radio is AX.25 > > X.25 is the CCITT wired network protocol over HDLC/LAP-B I think David's larger point was that what looked to me like more widespread breakage was in fact limited to [a]x25, a comparatively rarely used (and rarely tested) corner of the kernel. I turned them off and that solved the problems here. (and i suspect the real fix wont be far away either) Thanks everyone. Ingo