Re: [xhci_hcd] reset SuperSpeed, xhci_drop_endpoint called with disabled ep, Error in queuecommand_lck: task blocked

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I've uploaded a dmesg with the new debugging patch to bugzilla:
https://bugzilla.kernel.org/attachment.cgi?id=130041

Andreas Reis

On 18.03.2014 15:57, Alan Stern wrote:>
> The debugging information didn't go far enough.  Try the patch below
> instead, which has some additional messages.
>
> There are two apparently separate problems here.  First, why was the
> reset necessary?  As far as I can tell, the only explanation seems to
> be a failure of Link Power Management.
>
> Second, why the errors in queuecommand_lck?  I suspect the answer to
> that lies somewhere in the SCSI subystem, not USB.  The new debugging
> patch should tell us for sure.
>
> Alan Stern
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