Thanks for pointing me to the USB discussion! This was exactly the case. There was a bug in the dwc_otg module, causing kind of memory leak (as I understood it from the discussion). And for those suffering from the same problem: I updated the kernel according to the guide below and my RPi runs stable at full USB speed since then.
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=23544&start=125 https://github.com/Hexxeh/rpi-update Thanks for that hint!! BR Ralf -----Original Message----- From: p4trykx [mailto:[email protected]] Sent: Saturday, 12 January, 2013 12:46 To: OWFS (One-wire file system) discussion and help Subject: Re: [Owfs-developers] freezing apps when using multiple owserver W dniu 12.01.2013 o 11:51 Ralf Grafe <[email protected]> pisze: > The program on the first RPi also gets stuck, in case I have to reboot > the second RPi. I'm trying to figure out what might be wrong for a > couple of days now, and thought it might be best to ask the experts > for their assessment. You say that the second one uses ftdi232. There are some issues with USB on Raspberry. Look at this thread. http://www.raspberrypi.org/phpBB3/viewtopic.php?t=8010 A quick solution could be adding dwc_otg.speed=1 to /boo/cmdline.txt it will switch usb to 1.1 only so the network speed will decrease significantly. This helped with a usb wireless keyboard. Also the newest kernels have better usb drivers but still not perfect. -- p4trykx ---------------------------------------------------------------------------- -- Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122912 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers ------------------------------------------------------------------------------ Master Java SE, Java EE, Eclipse, Spring, Hibernate, JavaScript, jQuery and much more. Keep your Java skills current with LearnJavaNow - 200+ hours of step-by-step video tutorials by Java experts. SALE $49.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122612 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
