From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751180AbaIJOQD (ORCPT ); Wed, 10 Sep 2014 10:16:03 -0400 Received: from filter1.ibarracuda.nl ([83.247.7.10]:44889 "EHLO filter1.ibarracuda.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750967AbaIJOP7 (ORCPT ); Wed, 10 Sep 2014 10:15:59 -0400 X-ASG-Debug-ID: 1410358556-0759e73eff248260002-xx1T2L X-Barracuda-Envelope-From: Frans.Klaver@xsens.com X-Barracuda-AUTH-User: xsenscom X-Barracuda-Apparent-Source-IP: 87.249.116.215 Date: Wed, 10 Sep 2014 16:15:55 +0200 From: Frans Klaver To: Sebastian Andrzej Siewior CC: , , Greg Kroah-Hartman , , , , Subject: Re: [PATCH v8 00/18] 8250-core based serial driver for OMAP + DMA Message-ID: <20140910141554.GC22315@ci00147.xsens-tech.local> X-ASG-Orig-Subj: Re: [PATCH v8 00/18] 8250-core based serial driver for OMAP + DMA References: <1409943773-7874-1-git-send-email-bigeasy@linutronix.de> <20140908144616.GA22315@ci00147.xsens-tech.local> <20140908151501.GA22584@linutronix.de> <20140908183353.GB4686@ci00147.xsens-tech.local> <540F57E0.8030404@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline In-Reply-To: <540F57E0.8030404@linutronix.de> User-Agent: Mutt/1.5.23 (2014-03-12) X-Originating-IP: [172.16.11.160] X-Barracuda-Connect: rev-215.116.249.87.virtu.nl[87.249.116.215] X-Barracuda-Start-Time: 1410358556 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://filter1.ibarracuda.nl:8000/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9340 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 09, 2014 at 09:41:20PM +0200, Sebastian Andrzej Siewior wrote: > On 09/08/2014 08:33 PM, Frans Klaver wrote: > > Thanks. I'll give it a spin on Wednesday. > > Could you please pull the upcoming v9 first? > > git://git.breakpoint.cc/bigeasy/linux.git uart_v9_pre1 > > This solves a few of my am335x related issues. Using v9_pre1, I get a kernel panic in edma_dma_pause() on echan->edesc being NULL. I do get data before this happens. This is at high speed, high rate. No mention of the irq having too much to do, though. The more data I transmit, the more likely this is to occur. I don't currently have the setup to lower the baudrate. I would probably need to reproduce this on a beaglebone, instead of our custom board. I'll see if I can do that. If you need more info, just let me know. Thanks, Frans