From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarek Poplawski Subject: Re: 2.6.35->2.6.36 regression, vanilla kernel panic, ppp or hrtimers crashing Date: Wed, 3 Nov 2010 07:38:54 +0000 Message-ID: <20101103073854.GA7279@ff.dom.local> References: <20101028070550.GA7647@ff.dom.local> <201011021549.47466.nuclearcat@nuclearcat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Thomas Gleixner , Paul Mackerras , linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Denys Fedoryshchenko Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:52792 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753378Ab0KCHjH (ORCPT ); Wed, 3 Nov 2010 03:39:07 -0400 Content-Disposition: inline In-Reply-To: <201011021549.47466.nuclearcat@nuclearcat.com> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, Nov 02, 2010 at 03:49:47PM +0200, Denys Fedoryshchenko wrote: > I didn't try yet, but i enable more debugs and catch linked list corruption. It should be very useful but it seems there were no significant changes in ppp locking between 2.6.35 and .36 except the patch I mentioned, so it would be nice to check this first and try to fix it properly later. Jarek P. > > Here is dumps from netconsole: > http://www.nuclearcat.com/ll.txt > http://www.nuclearcat.com/ll2.txt > > I have another PC, also fails to run 2.6.36, but netconsole don't give > anything. > Both PC's have strange issue with clock drifting away too much (on 2.6.35 and > maybe even before). > > > On Thursday 28 October 2010 10:05:50 Jarek Poplawski wrote: > > On 2010-10-25 11:22, Denys Fedoryshchenko wrote: > > > Hi > > > > > > Here is what i got from netconsole > > > > > > [ 259.238755] BUG: unable to handle kernel > > > paging request > > > at f8ba001c > > > [ 259.238953] IP: > > > [] do_select+0x2cc/0x502 > > > > ... > > > > > It is not easy to do full git bisect(it is semi-embedded distro), but i > > > can try reversing particular commits, if someone can give idea which > > > one, and can try debug patches. > > > > Hi, > > Nothing concrete, but you might try reverting this one: > > > > http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.36.y.git;a=commi > > tdiff;h=15fd0cd9a2ad24a78fbee369dec8ca660979d57e > > > > Jarek P. > > -- > > To unsubscribe from this list: send the line "unsubscribe netdev" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html