On Wed, 22 Oct 2014, Matteo Fortini wrote:

> I (partly) reopen this issue because it fixed the problem we had (lost 
> TDs lead to random process lockups on FTDI serial), but we're now seeing 
> another kind of lockup which is also USB-related on the same board, just 
> at the time we close() the serial port.
> 
> We enabled USB debug to gather all available information.
> 
> Thank you for any comment

> [email protected]:~# dmesg
> [    0.000000] Linux version 3.14.0-xxxxxxxxx+ () (gcc version 4.9.1 
> (Debian 4.9.1-16) ) #10 PREEMPT Wed Oct 22 11:49:42 CEST 2014

Does it work any better if you use a 3.17 kernel?

Alan Stern

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