Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp2562091imu; Thu, 29 Nov 2018 06:57:15 -0800 (PST) X-Google-Smtp-Source: AFSGD/UmxOuumxZIvbdIzvt8o2KlK0AjuciIMkTLaSI7bn4PHEU9sCjl/S2HJpPvwiXuuJfuQt55 X-Received: by 2002:a63:1766:: with SMTP id 38mr1444979pgx.299.1543503435402; Thu, 29 Nov 2018 06:57:15 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1543503435; cv=none; d=google.com; s=arc-20160816; b=VVlUJpY/vRSfceggr+SEGHrBb+Y0tXwTax0JM3/QRhDnVOdTeTEv0cZ7XyTkTcGfXC 8ObqHmJl7vzrXbZ0VhFa2dCVKL+JjtEJIIyFCtuynBSRYZW0c+pXeINZWpUXkjh2yOg6 0n8h+QntFjylX+uyTF+u0JJVFEZ7SX5XLivDqrYj8Mz6JHuUgJqt9LFlrsD9qptcP4uu 0ltVA6qk9BMFJX945L46ATHyhqwl2uRJy1Oy9e6cKKYUYjoQwUt0G3J+WK+2r7SPVi5I JZJZCrMM+LjyAEyJu5rgGJg9bDCPEb80gvKHr5MFQi180A/SGY4UzTfaImn0U1/FmaLh rb3w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=1XVCov4/D+nomEvBfWfWzSB0r2skUxkpUx+KCYXhJVI=; b=Qvt4lAIN2W2r2pA01LYw7TIUJuRjpSeFMmInGhD8OpB7iT3dc9N/DjNakTfKlQ13A+ 1gLcPnZXm0QQwyqgj2q7W2nDL5qd5NKYtJD9Ube4unyNQkLYn6vwf3QF7NudkRIBcyz0 N/ZfkwEHCNsdgcFjA4FzWIRGjj3J1b8VcsLRl88ukHD6+3qPkZQtUERSLyxoc6owy3BU fMKuXPuGLke7PyXmRhSw0QHU35FY20aOgYNIpmGHPI0sRxw/8U1uQH4ibKUmh8JtEB47 52+XVklxCrrHBs4oaohFxbyHmJhdErDrCw3/3Le3km+ESl1WYWcwJx75kIv0gPNh69ur HGZA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=TDprkNcX; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n15si1948109pgk.27.2018.11.29.06.57.00; Thu, 29 Nov 2018 06:57:15 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=TDprkNcX; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731282AbeK3CBm (ORCPT + 99 others); Thu, 29 Nov 2018 21:01:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:51502 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731655AbeK3B06 (ORCPT ); Thu, 29 Nov 2018 20:26:58 -0500 Received: from localhost (unknown [122.178.235.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B3D3A2133F; Thu, 29 Nov 2018 14:21:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1543501287; bh=j9x95LLQiSLZPuI7E9GTkCNz4yIpRJWzFqdRWa6/oJM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TDprkNcXMGKS0oVRbVSxCpfpPvkdTL0Oc+csVmEWAzvxnPnF/1v+S+QJVxLgxECg6 X+s+5Vx5hTW5EZva4MW5li+eFiHq5AC0+/ljngwzNggSZVlfYkIL5INQ9qB5iuKEvF EzaG3JLUXcG+kBmefj6YeLrtVFkkLXLyYsDPhSnI= Date: Thu, 29 Nov 2018 19:51:18 +0530 From: Vinod Koul To: Richard Genoud Cc: Ludovic Desroches , Dan Williams , Alexandre Belloni , Nicolas Ferre , Maxime Ripard , Mario Forner , linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH] dmaengine: at_hdmac: fix module unloading Message-ID: <20181129142118.GI3175@vkoul-mobl.Dlink> References: <20181127160635.11836-1-richard.genoud@gmail.com> <20181127160635.11836-2-richard.genoud@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181127160635.11836-2-richard.genoud@gmail.com> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 27-11-18, 17:06, Richard Genoud wrote: > of_dma_controller_free() was not called on module onloading. > This lead to a soft lockup: > watchdog: BUG: soft lockup - CPU#0 stuck for 23s! > Modules linked in: at_hdmac [last unloaded: at_hdmac] > when of_dma_request_slave_channel() tried to call ofdma->of_dma_xlate(). Applied, thanks -- ~Vinod