From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alexander Kuleshov <kuleshovmail@gmail.com>
Subject: Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking
 detected
Date: Wed, 26 Aug 2015 19:29:29 +0600
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To: Takashi Iwai <tiwai@suse.de>
Cc: Alexander Kuleshov <kuleshovmail@gmail.com>, Jaroslav Kysela <perex@perex.cz>, alsa-devel@alsa-project.org, LKML <linux-kernel@vger.kernel.org>
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On 08-26-15, Takashi Iwai wrote:
> On Wed, 26 Aug 2015 15:16:43 +0200,
> Alexander Kuleshov wrote:
> > 
> > On 08-26-15, Takashi Iwai wrote:
> > > 
> > > Ah, sorry, this was the missing refcount increment at resume.
> > > Below is the revised patch.  In the final form, it'll be split to a
> > > few parts, but now it's all folded for ease of testing.
> > > 
> > 
> > Hello Takashi,
> > 
> > sorry for delay, just made a test with the last patch and finally
> > dmesg is clear.
> 
> Great, thanks for many tests!
> 
> I tried the autopm on my machine, but strangely I couldn't reproduce
> this lockdep warning.  Could you give your kconfig?  I'd like to
> check.

Yes, my .config: http://pastebin.com/N2e8TTtK