Re: Deadlock v3.10.35 with FTD_SIO usb-serial adapter

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On Wed, 30 Apr 2014, Matteo Fortini wrote:

> Thank you Alan,
> here you go: http://pastebin.com/txu8M68L we included the register file 
> both before and after the hangup, with a 1s interval.

Thanks.  This confirms the reason for the problem.  It's a hardware bug
in the OHCI controller; after completing a transfer, the controller
didn't add the Transfer Descriptor to the Done List.

I'm working on a patch to detect this sort of mistake and recover from 
it.  I'll let you know when it's ready for testing.

Alan Stern

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