From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cong Wang Subject: Re: NULL deref in bnx2 / crashes ? ( was: netconsole leads to stalled CPU task ) Date: Thu, 23 Aug 2012 07:57:12 +0000 (UTC) Message-ID: References: <1345634026.5158.1084.camel@edumazet-glaptop> <1345640757.5158.1321.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from plane.gmane.org ([80.91.229.3]:48125 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932160Ab2HWH5e (ORCPT ); Thu, 23 Aug 2012 03:57:34 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1T4SIA-0004ji-FO for netdev@vger.kernel.org; Thu, 23 Aug 2012 09:57:26 +0200 Received: from 112.132.201.16 ([112.132.201.16]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 23 Aug 2012 09:57:26 +0200 Received: from xiyou.wangcong by 112.132.201.16 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 23 Aug 2012 09:57:26 +0200 Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 22 Aug 2012 at 14:29 GMT, Sylvain Munaut wrote: > Hi, > > > The machine with the intel card still hard freeze (no output / no nothing ...) > The machine with the bnx2 don't crash anymore and no NULL deref, but > the modprobe still hangs and I get this every 180 sec or so : The NULL-deref can be reproduced easily, and Eric's patch could fix it. So, Eric, can you resend your patch with your SOB? I can't reproduce the hang as it is net driver specific, it is probably related with my patch: commit 6bdb7fe31046ac50b47e83c35cd6c6b6160a475d Author: Amerigo Wang Date: Fri Aug 10 01:24:50 2012 +0000 netpoll: re-enable irq in poll_napi()