From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Hurley Date: Wed, 12 Mar 2014 14:04:10 +0000 Subject: Re: Suspecting kernel timing bug in ppp or tty drivers Message-Id: <5320695A.2070503@hurleysoftware.com> List-Id: References: <20140310194007.GC3392@kroah.com> <20140311185019.GA32618@kroah.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: terry white Cc: linux-ppp@vger.kernel.org, linux-serial@vger.kernel.org, =?UTF-8?B?TWF0cyBLw6Rycm1hbg==?= , Greg KH On 03/12/2014 08:14 AM, terry white wrote: > my reading of this 'thread' suggests that "pppd" and/or "serial" have > started "DEMANDING" bleeding edge kernel versions. if that 'correct', for > me anyway, it's going to prove problematic. that aside, it doesn't seem > like the most elegant solution, to problems it's meant to address ... There have been _hundreds of changes_ to the tty core since 3.2, many to specifically fix the type of error reported. Very few of these changes are trivial; there are at least a dozen patchsets with 10 or more patches. I doubt these will ever be backported to -stable; the changes are just too extensive. It makes sense to establish if these changes have indeed fixed the observed error already or if more in-depth debugging is necessary to uncover the root cause. Regards, Peter Hurley