On Saturday 23 October 2004 01:00 pm, Alan Stern wrote: > > USB Mass Storage device found at 2 > > usbcore: registered new driver usb-storage > > USB Mass Storage support registered. > > usb 1-1: control timeout on ep0in <- ep0 timeout > > What program sent that message on ep0? Do you have something like > gnome-pilot running that monitors USB devices? Or did it come from > your "cat" process?
Are you referring to the"<- ep0 timeout"? I added that manully when I posted the message. The "usb 1-1: control timeout on ep0in" comes from core/message.c > > Also, what does a Alt-SysRq-T stack trace show for the khubd process? And > for the usb-storage and scsi-eh processes? Hmm. This is running on an embedded system. I'm not familar with displaying stack usage. I'll look into it, though. > Finally, what other activities are you doing? You said that you tried to > mount the USB drive and to cat /proc/bus/usb/devices. In what order? > What does the stack backtrace show for those processes? Does either of > them run to completion? I had a shell looping and reading devices file 1/sec while doing mount. I've not looked at USB trace yet, but suspect the device gets confused when mixing control urbs. Other devices seem to work fine. Any process that tries to access the usb device once failure occurs will hang, as the device continuously naks all transfers. > > If you turn on the usb-storage verbose debugging option in the kernel > configuration, what additional information shows up in the system log? OK. I'll try to get more info. Thanks, Kyle. ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
