From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753358AbaEWPqV (ORCPT ); Fri, 23 May 2014 11:46:21 -0400 Received: from gw-1.arm.linux.org.uk ([78.32.30.217]:58857 "EHLO pandora.arm.linux.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753205AbaEWPqT (ORCPT ); Fri, 23 May 2014 11:46:19 -0400 Date: Fri, 23 May 2014 16:44:53 +0100 From: Russell King - ARM Linux To: Jason Cooper Cc: Waldemar Brodkorb , Waldemar Brodkorb , Shawn Guo , Rabeeh Khoury , linux-kernel@vger.kernel.org, Linux ARM Kernel Subject: Re: oops on cubox-i (v3.15-rc4) Message-ID: <20140523154453.GY3693@n2100.arm.linux.org.uk> References: <20140509144438.GW14063@waldemar-brodkorb.de> <20140511002506.GN12708@titan.lakedaemon.net> <20140523101751.GH618@waldemar-brodkorb.de> <20140523143845.GD8664@titan.lakedaemon.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140523143845.GD8664@titan.lakedaemon.net> User-Agent: Mutt/1.5.19 (2009-01-05) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 23, 2014 at 10:38:45AM -0400, Jason Cooper wrote: > On Fri, May 23, 2014 at 12:17:51PM +0200, Waldemar Brodkorb wrote: > > Hi Jason, > > Jason Cooper wrote, > > > > > Waldemar, > > > > > > + Russell King, linux-arm-kernel ML, Shawn Guo > > > > > > I'm not familiar with the platform, but I almost missed this in the > > > flood from lkml. I've added some folks to the Cc who I know work with > > > this platform and I've also corrected the Subject line so others > > > familiar with the Cubox-i might catch it. > > > > Thanks. Problem still exist with 3.15-rc6. > > It also happens with a NFSv3 exported filesystem. > > It works nearly stable with 3.10.30 kernel from here: > > https://github.com/linux4kix/linux-linaro-stable-mx6 > > (a crash after 3 days uptime) > > > > Anything I can do to help debugging? > > > > best regards > > Waldemar > > > > > hth, > > > > > > Jason. > > > > > > On Fri, May 09, 2014 at 04:44:38PM +0200, Waldemar Brodkorb wrote: > > > > Dear Kernel Hackers, > > > > > > > > I am getting kernel oopses on my cubox-i (i2ultra) running > > > > Linux 3.15-rc4, when using the box as a samba server with > > > > a local attached 8 GB usb stick. (it also happen with a smaller > > > > video on the micro-sd card) > > > > The oops happens while playing a movie (4 GB file) on a samba client > > > > (macos x maverick macbook) via vlc (after 5-15 minutes). > > > > > > > > Both systems are connected to a gigabit ethernet switch. > > > > > > > > The oops happens with ntfs-3g, ntfs, vfat and ext4 filesystem. > > Can you get an oops from when it's on ext4? It looks like this is going > through fuse which opens a whole can of unknown worms. Waldemar mentioned ext4. I don't think there's anything specific about it to the Cubox-i, and I'd also suggest that it's got nothing to do with ARM either - the iMX6 are PIPT data caches so there can't be any issues with D-cache aliasing with fuse. It must be a bug in generic code. > > > > Booting Linux on physical CPU 0x0 > > > > Linux version 3.15.0-rc4 (wbx@kop-brodkorbw) (gcc version 4.8.2 (GCC) ) #1 SMP Fri May 9 12:58:45 CEST 2014 > > > > CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d > > > > CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache > > > > Machine model: SolidRun Cubox-i Dual/Quad > > > > Truncating RAM at 10000000-4fffffff to -3f7fffff (vmalloc region overlap). Also worth noting that 1/4 of the RAM is not used because highmem is not enabled. Also L2 cache is disabled (so it's running slower than it should...) -- FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly improving, and getting towards what was expected from it.