Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758914Ab0FVD3p (ORCPT ); Mon, 21 Jun 2010 23:29:45 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:51524 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751396Ab0FVD3o (ORCPT ); Mon, 21 Jun 2010 23:29:44 -0400 Date: Mon, 21 Jun 2010 20:28:54 -0700 From: Andrew Morton To: Jeffrey Merkey Cc: linux-kernel@vger.kernel.org, Dan Williams Subject: Re: 2.6.34 Crash in dmaengine_put() Message-Id: <20100621202854.de928e0a.akpm@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 2.7.1 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 665 Lines: 15 On Mon, 21 Jun 2010 20:57:40 -0600 Jeffrey Merkey wrote: > If someone sets the IFF_UP flags in the netdev structure without going > through ifup userspace stuff, during unregister of the the netdev > the dmaengine-put code will decrement the reference counter negative, > and crash at BUG! in the driver/dma/dmaengine.c code. This seems > busted. > Please send a copy of the kernel BUG trace. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/