From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932231AbaIWVI7 (ORCPT ); Tue, 23 Sep 2014 17:08:59 -0400 Received: from mailout32.mail01.mtsvc.net ([216.70.64.70]:56279 "EHLO n23.mail01.mtsvc.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756935AbaIWVI4 (ORCPT ); Tue, 23 Sep 2014 17:08:56 -0400 Message-ID: <5421E166.7060206@hurleysoftware.com> Date: Tue, 23 Sep 2014 17:08:54 -0400 From: Peter Hurley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Helge Deller , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-parisc Subject: Re: serial console broken in v3.17-rc6 ? References: <5421D3E3.6080805@gmx.de> In-Reply-To: <5421D3E3.6080805@gmx.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Authenticated-User: 990527 peter@hurleysoftware.com X-MT-ID: 8FA290C2A27252AACF65DBC4A42F3CE3735FB2A4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Helge, On 09/23/2014 04:11 PM, Helge Deller wrote: > During the release cycle of v3.17 I've seen sometimes a broken serial console output > on the parisc platform. Interestingly all kernel messages printed by the kernel via printk() show > up correctly, but output from userspace (e.g. by the init process during boot) show > up as random bytes. > Since the printk() output is correct the serial port itself and setup is probably correct. > Is parisc the only arch which has this problem, or are other architectures affected as well? > Maybe someone has an idea what could be wrong? > I did not try to bisect it yet. > > Thanks, > Helge > > Here is a sample output during bootup: > > ... > usb 1-2: Manufacturer: SILITEK > rs > og > ]f" > s l > random: nonblocking pool is initialized > net eth0: Setting full-duplex based on MII#1 link partner capability of 45e1 > tpdsystemd-udevd[744]: starting version 215 > . > eg.. > vp.. > ..Adding 1350652k swap on /dev/sdb6. Priority:-1 extents:1 across:1350652k > . > EXT4-fs (sdb5): re-mounted. Opts: (null) Thanks for the bug report. 1. What serial driver is this? 2. Regression since when? 3. Full dmesg please 4. Output of setserial -a [serial device] 5. Output of stty -a [serial device] Regards, Peter Hurley