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Subject: Re: btusb_intr_complete returns -EPIPE
From: Oliver Neukum <oneukum@suse.de>
To: Naveen Kumar Parna <pnaveenkos@gmail.com>
Cc: "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>,
	linux-usb@vger.kernel.org
Date: Mon, 06 Oct 2014 14:55:08 +0200
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On Mon, 2014-10-06 at 18:18 +0530, Naveen Kumar Parna wrote:
> Hi,
> 
> I just collected the usbmon log(1.mon.out) and attached it. It stalls
> for INT in transfers.
> 
> Corresponding kernel log is here:
> Oct  6 18:00:48 naveen-OptiPlex-745 kernel: [ 7528.718473] hci3 urb
> ffff88012954dd80 status -32 count 0
> Oct  6 18:05:35 naveen-OptiPlex-745 kernel: [ 7814.688122] hci3 urb
> ffff88012954dd80 status -32 count 0
> Oct  6 18:05:35 naveen-OptiPlex-745 kernel: [ 7814.693086] hci3 urb
> ffff88012954dd80 status -32 count 0
> Oct  6 18:05:35 naveen-OptiPlex-745 kernel: [ 7814.695058] hci3 urb
> ffff88012954dd80 status -32 count 0
> Oct  6 18:05:35 naveen-OptiPlex-745 kernel: [ 7814.703073] hci3 urb
> ffff88012954dd80 status -32 count 0
> Oct  6 18:05:35 naveen-OptiPlex-745 kernel: [ 7814.717038] hci5 urb
> ffff88012954de40 status -32 count 0
> Oct  6 18:05:35 naveen-OptiPlex-745 kernel: [ 7814.717496] hci3 urb
> ffff88012954dd80 status -32 count 0
> 
> Corresponding Usbmon trace:
> ffff88012954dd80 2936526502 C Ii:1:009:1 -32:1 0
> ffff88012954dd80 3223215374 C Ii:1:009:1 -32:1 0
> ffff88012954dd80 3223220352 C Ii:1:009:1 -32:1 0
> ffff88012954dd80 3223222332 C Ii:1:009:1 -32:1 0
> ffff88012954dd80 3223230362 C Ii:1:009:1 -32:1 0
> ffff88012954de40 3223244362 C Ii:1:019:1 -32:1 0
> ffff88012954dd80 3223244830 C Ii:1:009:1 -32:1 0
> 
> Does it gives any clue?

Not really. I'll make a patch to clear the condition.
Let's see what happens then.

	Regards
		Oliver