> > http://bugzilla.kernel.org/show_bug.cgi?id=14778 > > > > Summary: USB (intel chipset) with external mass storage > > extremely slow or blocking > > Hi, > > > > for several months and still with the latest Ubuntu version I have severe > > trouble with my Toshiba Notebook (and found in forums that others have the same > > problem): > > > > When writing to USB-connected flash memory (USB-Stick/pendrive or camera flash > > cards like compact flash oder SD connected with a USB card reader), the process > > of writing gets quickly extremely slow and finally blocks completely. I see the > > problem on another notebook with intel chipset as well, but not with my > > computers having ATI controllers. > > > > Most often, there is no error message at all in the logs or dmesg. But > > sometimes there's a backtrace. Get a usbmon trace showing what happens starting from before the device is plugged in (instructions are in the kernel source file Documentation/usb/usbmon.txt). Attach the output to this bug report and let us know when it's ready. It'll give us a place to start from. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
