Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966500Ab3DQSi3 (ORCPT ); Wed, 17 Apr 2013 14:38:29 -0400 Received: from mail-pd0-f178.google.com ([209.85.192.178]:44652 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966109Ab3DQSi1 (ORCPT ); Wed, 17 Apr 2013 14:38:27 -0400 Date: Wed, 17 Apr 2013 11:38:24 -0700 From: Greg KH To: Stephan von Krawczynski Cc: richard -rw- weinberger , LKML Subject: Re: No serial since kernel 3.8 Message-ID: <20130417183824.GA2386@kroah.com> References: <20130416162047.2f9b83fe.skraw@ithnet.com> <20130416181006.6be492a8.skraw@ithnet.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130416181006.6be492a8.skraw@ithnet.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1400 Lines: 41 On Tue, Apr 16, 2013 at 06:10:06PM +0200, Stephan von Krawczynski wrote: > On Tue, 16 Apr 2013 16:55:25 +0200 > richard -rw- weinberger wrote: > > > On Tue, Apr 16, 2013 at 4:20 PM, Stephan von Krawczynski > > wrote: > > > Hello, > > > > > > can some kind soul please explain how I can get my serial port back under > > > kernel 3.8.X. Earlier kernels showed: > > > > > > Jan 10 13:57:18 mybox kernel: [ 0.712829] serial8250: ttyS0 at I/O 0x3f8 > > > (irq = 4) is a 16550A > > > > > > But 3.8.4: > > > > > > Mar 26 10:39:14 admin kernel: [ 0.603647] serial 00:0a: disabled > > > > > > Only kernel is replaced, no change in distro > > > Is there some kernel boot parameter needed now? > > > I tried 3.4.X and it works, even 3.7.X works... > > > > So, 3.8.3 worked and 3.8.4 introduced a regression? > > If so please confirm. > > > > CC'ing gregkh, just in case... > > No, neither 3.8.4 nor 3.8.3 worked. The last working version I know for sure is 3.7.6 > FYI: I don't load serial as a module Can you run 'git bisect' between those kernels to track down the offending commit? thanks, greg k-h -- 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/