On Thu, 31 Oct 2013, Prasad Koya wrote: > I tried usbmon before forcing crash: > As this USB is on bus 1, I tried below: > > cat /sys/kernel/debug/usb/usbmon/1u > > I didn't see anything till I copied a file or did some activity on it. > While cat'ing above, I copied a file to that flash with dd in another > terminal and I got this: ... > But I'm seeing the issue in early boot. So is there any other way to > get the usbmon traces out? That makes it more difficult. You can't use usbmon during early boot, so your only option is to enable CONFIG_USB_STORAGE_DEBUG. The output is more verbose, but we should be able to see what's going on. 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