On Mon, 11 Jun 2007, Anders Lindgren wrote:
>> Are other people experiencing problems with USB mass storage devices?
>> I am unable to use a USB Zip drive or USB flash storage devices
>> because of I/O errors.  Looking at the output from dmesg, I have a
>> screen full of...
>>
>>   umass0: BBB reset failed, STALLED
>>   umass0: BBB bulk-in clear stall failed, STALLED
>>   umass0: BBB bulk-out clear stall failed, STALLED
>
> FWIV, I am seeing the same on amd64 (but TIMEOUT rather than stalled), on 
> both 3.0:ish -current snapshot of GENERIC.MP and 4.0_BETA2 (on 3.0 userland), 
> with everything from dead usb to complete system deadlock and even crash 
> during reboot.

I found this when upgrading from 2.1 to 3 with some USB hard drives and 
spent some considerable time trying to find the commit that broke it, but 
it was behaving so randomly, I never got to the bottom of it. I found one 
commit that broke device names, but this turned out to be separate from 
the BBB problems.

Are you seeing these problems on ehci, uhci or ohci?

-- 
Stephen