On Sat, 9 Jan 2010, Ryan May wrote: > Oh, ok. I'll get you those when I get the chance. In the meanwhile, > here is the output from dd | hexdump -C. Wow. Are you sure you issued the same command for the patched and unpatched versions of 2.6.31? The outputs are completely different. Assuming the computer is sending the same commands to the device (which you can check by doing a "blockdev --flushbufs /dev/sdb" before the "dd" and using usbmon), the device itself must be behaving very strangely. Or else the kernel's block cache has gotten messed up, which is very unlikely. (It's worth mentioning that the usbmon traces you already posted each show a few places where the computer reads the first sector, and the data sent by the device agrees with your patched data here, not the unpatched data. That's true even with the usbmon trace made using the unpatched kernel.) 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
