From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Jarzmik Subject: Re: [BUG] dmaengine: pxa_dma: + mmc: pxamci: race condition with DMA error on tx channel Date: Tue, 14 Mar 2017 22:11:46 +0100 Message-ID: <871stzh8bx.fsf@belgarion.home> References: <877f3zwwgo.fsf@belgarion.home> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from smtp10.smtpout.orange.fr ([80.12.242.132]:29537 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750973AbdCNVLx (ORCPT ); Tue, 14 Mar 2017 17:11:53 -0400 In-Reply-To: (Petr Cvek's message of "Fri, 10 Mar 2017 01:49:12 +0100") Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Petr Cvek Cc: vinod.koul@intel.com, Ulf Hansson , Daniel Mack , Haojian Zhuang , linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org Petr Cvek writes: Ok Petr, I've been trying for days to reproduce without any luck. I had a look at your traces, and I'd like something else when it happens : 1) The patch I provided earlier applied 2) This done (the 'cat' after the bug) : mount -t debugfs none /sys/kernel/debug/ cat /sys/kernel/debug/pxa-dma.0/channels/4/[sd]* Cheers. -- Robert