From mboxrd@z Thu Jan 1 00:00:00 1970 From: alex@digriz.org.uk (Alexander Clouter) Date: Sat, 16 Jan 2010 00:16:13 +0000 Subject: Kirkwood/OpenRD-Base System Crash from DMA References: <20100116001307.GH16062@voodoowarez.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org rektide wrote: > > I'm attempting to use 2.6.32.3 on a Kirkwood/OpenRD-Base system. This > system has been serving fine playing MP3's via PulseAudio and MPD for > >5 months now. However other activities will sometime cause the > system to lock up. The most reliable activity is to do a "git pull", > from anywhere. Secondly, writing files onto the system via a Samba > share causes a lockup. > > [snipped] > > There's a thread on the OpenRD google group with multiple people confirming the issue: > http://groups.google.com/group/openrd/browse_thread/thread/d435787eb4e4ffd0 > > One person has confirmed the issue goes away when CONFIG_NET_DMA and > CONFIG_ASYNC_TX_DMA are disabled. I'm building a kernel now to > confirm this myself, and will report back tomorrow. > I can say it's a "me too" on mine, however I never reported the issue as it's a known problem: http://marc.info/?l=linux-raid&m=123606440522693&w=2 I ran into it on a USB key RAID setup when I started up a huge rsync. I didn't even get a trace in that situation, just a hard lockup. Not looked at it since. Cheers -- Alexander Clouter .sigmonster says: A dwarf is passing out somewhere in Detroit!