On Fri, 10 Dec 2010, Jon 'maddog' Hall wrote: > I booted the system using the new kernel, then I mounted and unmounted > the USB memory stick several times. > > Included in the tar file (compressed this time) are the dmesg files as > before and a copy of the /var/log/messages file, edited to show just the > messages from booting this kernel and installing and removing the memory > stick. > > tar czvf sarah.tgz sarah > > If you need me to do anything more, or need any other files, just let me know. Nothing stands out in these logs, as far as I can see. Jon, can you make sure CONFIG_USB_MON and CONFIG_DEBUG_FS are enabled in your kernel configuration and then capture some usbmon traces for bus 3 (i.e., use the 3u file)? Instructions are in the kernel source file Documentation/usb/usbmon.txt. You should plug the device into one of the USB-3 sockets, then after 10 seconds or so start a trace, then click on "Safely remove drive", and then after 10 more seconds unplug the device. At that point stop the trace and begin a new one. For the second trace, plug the device back into the same socket as before, and when nothing happens try plugging it into the other USB-3 socket. The two traces will provide very detailed information about what the kernel sees. 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