From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: Line Discipline Kernel BUG when using usb-serial and mos7840 in v3.11 Date: Fri, 25 Apr 2014 12:24:05 -0700 Message-ID: <20140425192405.GA32455@kroah.com> References: <20140425182025.GA6331@kroah.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from out1-smtp.messagingengine.com ([66.111.4.25]:38652 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754308AbaDYTVN (ORCPT ); Fri, 25 Apr 2014 15:21:13 -0400 Received: from compute1.internal (compute1.nyi.mail.srv.osa [10.202.2.41]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id 21A44215FD for ; Fri, 25 Apr 2014 15:21:11 -0400 (EDT) Content-Disposition: inline In-Reply-To: Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: Coleman Brumley Cc: "linux-serial@vger.kernel.org" On Fri, Apr 25, 2014 at 03:09:16PM -0400, Coleman Brumley wrote: > > > On Friday, April 25, 2014, Greg KH wrote: > > On Fri, Apr 25, 2014 at 11:05:54AM -0400, Coleman Brumley wrote: > > I'm working with a line discipline in v3.11.10.5 in Ubuntu 12.04 LTS. > > The kernel has been modified to use a HZ of 1000. CONFIG_HZ_1000=y and > > CONFIG_HZ=1000 in .config. > > 3.11 is really old, can you try something that we can actually do > something about, like 3.14 or Linus's tree > > > I can do that, it was just that 3.11 is what Ubuntu gave me. We can't do anything with what Ubuntu gave you :) > Also, do you have a pointer to your line discipline code anywhere? > There's been lots of changes in the tty layer over the past year or so. > > > Can you point me to a document that outlines the changes, or a how to for > writing a line discipline for 3.14? Look at the kernel changes made from your last working version to today. It's all in our git history, no need for a "document". best of luck, greg k-h