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Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected

From Takashi Iwai <tiwai@suse.de>
Newsgroups linux.kernel
Subject Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected
Date 2015-08-26 15:30 +0200
Message-ID <q1IW5-6Yn-5@gated-at.bofh.it> (permalink)
References (5 earlier) <q1seC-7G4-25@gated-at.bofh.it> <q1soi-7Tn-15@gated-at.bofh.it> <q1DD4-7K7-13@gated-at.bofh.it> <q1Eps-s9-1@gated-at.bofh.it> <q1IMr-6N8-31@gated-at.bofh.it>
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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.


Takashi
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Thread

ALSA/usb-audio: snd_usb_autoresume possible recursive locking  detected Alexnader Kuleshov <kuleshovmail@gmail.com> - 2015-08-25 15:40 +0200
  Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Takashi Iwai <tiwai@suse.de> - 2015-08-25 15:50 +0200
    Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Takashi Iwai <tiwai@suse.de> - 2015-08-25 17:00 +0200
      Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking  detected Alexnader Kuleshov <kuleshovmail@gmail.com> - 2015-08-25 19:20 +0200
        Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Takashi Iwai <tiwai@suse.de> - 2015-08-25 20:40 +0200
          Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Alexander Kuleshov <kuleshovmail@gmail.com> - 2015-08-25 21:40 +0200
            Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Takashi Iwai <tiwai@suse.de> - 2015-08-25 21:50 +0200
              Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking  detected Alexander Kuleshov <kuleshovmail@gmail.com> - 2015-08-26 09:50 +0200
                Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Takashi Iwai <tiwai@suse.de> - 2015-08-26 10:40 +0200
                Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking  detected Alexander Kuleshov <kuleshovmail@gmail.com> - 2015-08-26 15:20 +0200
                Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking detected Takashi Iwai <tiwai@suse.de> - 2015-08-26 15:30 +0200
                Re: ALSA/usb-audio: snd_usb_autoresume possible recursive locking  detected Alexander Kuleshov <kuleshovmail@gmail.com> - 2015-08-26 15:40 +0200

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