On Thursday 30 September 2004 4:53 am, martin f krafft wrote: > > I have a USB device (a built-in 7-in-1 Maxxtro USB 2.0 card reader) > in this 2.6.8.1 machine of mine, and it's acting up. I am seeing > messages such as the following every couple of seconds: > > usb 4-6: new high speed USB device using address 47 > usb 4-6: control timeout on ep0in > usb 4-6: device not accepting address 47, error -71
This is odd, and started appearing recently. I'm not sure why. > The main problem, however, is that my entire USB subsystem is > basically unusable. So I tried to restart hotplug (which usually > helps) but that resulted in khubd crashing upon removal of uhci-hcd: > > root 6215 0.0 0.0 1520 408 pts/4 DN+ 11:54 0:00 rmmod uhci-hcd > > This is what dmesg says: > > Unable to handle kernel NULL pointer dereference... > EIP is at hcd_endpoint_disable+0x74/0x1e0 [usbcore] This suggests UHCI (or the hub driver?) confused usbcore somehow. Can you find out what's at that line? There's some GDB command that'll turn that into a line of C code if your kernel is appropriately compiled; doesn't come quickly to mind. - Dave ------------------------------------------------------- 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
