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Date:	Mon, 22 Oct 2012 06:51:39 +0200
From:	Virupax SADASHIVPETIMATH <virupax.sadashivpetimath@...ricsson.com>
To:	"balbi@...com" <balbi@...com>
Cc:	"stern@...land.harvard.edu" <stern@...land.harvard.edu>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
	Rajaram REGUPATHY <ragupathy.rajaram@...ricsson.com>,
	Praveena NADAHALLY <praveen.nadahally@...ricsson.com>,
	Shuai WEN <shuai.wen@...ricsson.com>
Subject: RE: [PATCH] usb:musb: Dequeue urbs on device unplug



> -----Original Message-----
> From: Felipe Balbi [mailto:balbi@...com]
> Sent: Monday, October 15, 2012 5:49 PM
> To: Virupax SADASHIVPETIMATH
> Cc: balbi@...com; stern@...land.harvard.edu; linux-usb@...r.kernel.org;
> linux-kernel@...r.kernel.org; linus.walleij@...aro.org; Rajaram REGUPATHY;
> Praveena NADAHALLY
> Subject: Re: [PATCH] usb:musb: Dequeue urbs on device unplug
> 
> Hi,
> 
> On Wed, Oct 10, 2012 at 10:06:03AM +0530, Virupax Sadashivpetimath wrote:
> > Flush queued urbs on receiving device disconnect interrupt. This is
> > required for successful disconnect and successive enumeration of the
> > device.
> >
> > In a failure case khubd hangs on usb-storage thread for completion.
> > Seen in the below trace.
> >
> > [ 1355.764526] SysRq : Show Blocked State
> > [ 1355.768341]   task                PC stack   pid father
> > [ 1355.773620] khubd           D c06a1fbc     0   503      2 0x00000000
> > [ 1355.780151] [<c06a1fbc>] (__schedule+0x3f0/0x8ec) from [<c06a26a0>]
> > (schedule+0x58/0x70) [ 1355.788330] [<c06a26a0>] (schedule+0x58/0x70)
> > from [<c06a2af8>] (schedule_timeout+0x1d8/0x31c) [ 1355.796997]
> > [<c06a2af8>] (schedule_timeout+0x1d8/0x31c) from [<c06a1994>]
> > (wait_for_common+0xd8/0x180) [ 1355.806396] [<c06a1994>]
> > (wait_for_common+0xd8/0x180) from [<c06a1b14>]
> > (wait_for_completion+0x20/0x24) [ 1355.815887] [<c06a1b14>]
> I would like to get some Tested-bys here.

Can you please add 

Tested-by: <shuai.wen@...ricsson.com>

Thanks 
Virupax S 
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