Date: Thu, 07 Oct 2010 22:22:02 +0200 From: Anselm Strauss <amsibamsi@gmail.com> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-questions@freebsd.org, freebsd-usb@freebsd.org Subject: Re: USB disk on CS5536 unstable Message-ID: <4CAE2BEA.1020003@gmail.com> In-Reply-To: <4CAE29B8.8010304@gmail.com> References: <4CA3B8F5.80904@gmail.com> <201009302138.51616.hselasky@c2i.net> <4CA72917.8060209@gmail.com> <201010021639.11568.hselasky@c2i.net> <4CAE29B8.8010304@gmail.com>
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On 10/07/10 22:12, Anselm Strauss wrote: > On 10/02/10 16:39, Hans Petter Selasky wrote: >> On Saturday 02 October 2010 14:44:07 Anselm Strauss wrote: >>> On 09/30/10 21:38, Hans Petter Selasky wrote: >>>> On Thursday 30 September 2010 21:10:59 Anselm Strauss wrote: >>>>> Maybe sending it to just the USB list was too specific ... >>>>> >>>>> On 09/30/10 00:08, Anselm Strauss wrote: >>>>>> Hi >>>>>> >>>>>> I have an ALIX board that has an AMD Geode and the CS5536 companion >>>>>> chip with integrated USB on it. When I connect a USB disk I have >>>>>> observed various problems. For example when I run fsck_ufs on a 250 GB >>>>>> partition the process gets stuck in biord state and fsck reports >>>>>> unreadable sectors. When I do a dd over the whole disk and direct it >>>>>> to /dev/null it suddenly returns with no error, but having read only a >>>>>> small fraction of the disk. I tried it with two different disks and >>>>>> two different ALIX boards. I'm pretty sure the disks are okay since I >>>>>> tried them on other hardware. >>>>>> >>>>>> As far as I know there was some trouble with the chip regarding >>>>>> timeouts. Under load after some time the USB just stops responding. I >>>>>> have tried 8.0 and 8.1. Is there any known problem? How can I track >>>>>> this down? >>>>>> >>>>>> Anselm >>>> >>>> If you compile the kernel with USB_DEBUG, then there are some sysctls >>>> under hw.usb.ehci which you can tweak. Needs to be set before boot. >>>> >>>> --HPS >>> >>> Did not know that there were configurable bug workarounds in sysctl. >>> When I set hw.usb.ehci.lostintrbug=1 in /boot/loader.conf the problems >>> seem gone. >>> >>> Without this setting I got the following kernel message when dd did abort: >>> >>> ehci_timeout: xfer=0xc29cd3c8 >>> >>> >>> Thanks, >>> Anselm >> >> Maybe you can report the PCI vendor ID and product so that we can add this >> quirk. >> >> --HPS > > Not sure what a "PCI vendor ID" is and how to determine it. It's a ALIX > 2d2 from http://pcengines.ch/alix. > > Anselm Sorry, wrong URL: http://pcengines.ch/alix.htm
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