From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: Mainpine IQ Express Rev3 problems beginning 2.6.36 Date: Mon, 10 Jan 2011 16:02:31 -0800 Message-ID: <20110111000231.GA30424@kroah.com> References: <4D001AF1.80902@mainpine.com> <20101209064259.GA10714@kroah.com> <9BEA64D1D71A4BCFA22E0ECE7A4B3A01@callisto> <20101212165201.GB14184@kroah.com> <64E919E148714BFCB46D62A05E9EF13D@callisto> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from kroah.org ([198.145.64.141]:38751 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754653Ab1AKACt (ORCPT ); Mon, 10 Jan 2011 19:02:49 -0500 Content-Disposition: inline In-Reply-To: <64E919E148714BFCB46D62A05E9EF13D@callisto> Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: Lee Howard Cc: linux-serial@vger.kernel.org On Fri, Dec 17, 2010 at 05:25:19AM -0800, Lee Howard wrote: > > -----Original Message----- > > From: linux-serial-owner@vger.kernel.org > > [mailto:linux-serial-owner@vger.kernel.org] On Behalf Of Lee Howard > > Sent: Tuesday, December 14, 2010 11:50 AM > > To: 'Greg KH' > > Cc: linux-serial@vger.kernel.org > > Subject: RE: Mainpine IQ Express Rev3 problems beginning 2.6.36 > > > > > -----Original Message----- > > > From: Greg KH [mailto:greg@kroah.com] > > > Sent: Sunday, December 12, 2010 8:52 AM > > > > > As for build issues, try to make a minimal working config for your > > > system, using 'make localmodconfig'. That will speed up your build > > > time immensely as well as reduce your chances of build and runtime > > > problems with the intermediate kernels. > > > > Thank-you, that did help immensely. > > > > Here's the 'git bisect' result... > > > > -------------- > > 7a56aa45982bb87bfca98a2832b5ae782c03364a is the first bad > > commit commit 7a56aa45982bb87bfca98a2832b5ae782c03364a > > Author: Yegor Yefremov > > Date: Wed Jun 16 16:29:55 2010 +0200 > > > > serial: add UART_CAP_EFR and UART_CAP_SLEEP flags to > > 16C950 UARTs definition > > > > Adding UART_CAP_EFR and UART_CAP_SLEEP flags will enable > > sleep mode > > and automatic CTS flow control for 16C950 UARTs. It will > > also avoid > > capabilities detection warning like this: > > > > "ttyS0: detected caps 00000700 should be 00000100" > > > > Signed-off-by: Yegor Yefremov > > Signed-off-by: Greg Kroah-Hartman > > > > :040000 040000 1776ca8d5c653834363c0778b5b404ee52bd2d69 > > b81cfe4f302a674935181bd248641873820517e5 M drivers > > -------------- > > > > Indeed, if I remove the UART_CAP_EFR flag from later kernel > > revisions there is no problem. > > Greg, > > What's to be done? Sorry for the delay, I think Pavel's posted patch will solve this issue for you, right? thanks, greg k-h