On Mon, 31 May 2004, Ville Pätsi wrote: > I suffer from the same application hang with usb devices that others > seem to have encountered too. USB devices work fine after bootup, but > after the system has been up a while any application accessing a usb > device hangs. The program does not respond anymore and ps lists its > state as DW. The device is completely hung up at this point, and refuses > to work until a reboot. This problem came with the 2.6.6 kernel version > (the only 2.6.x series kernel I've run on this machine). In 2.4.x it > works fine. > > Then I tried with the usbfs unmounted. The problem doesn't occur > anymore. No matter how many days the system stays up, or how many times > the device is accessed by a program, it continues to work as normal.
Do you have any ideas what programs might be running and using usbfs? Maybe some hotplug utility is causing these problems. If you turn on USB debugging in the kernel configuration, the system log might contain some clues. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by: Oracle 10g Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE. http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
