linux-kernel - Re: 2.6.36: Sound stop working

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Message-ID: <s5hzkwrscwm.wl%tiwai@suse.de>
Date:	Fri, 13 Aug 2010 00:07:37 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Eric Paris <eparis@...hat.com>, Al Viro <viro@...iv.linux.org.uk>,
	Jiri Slaby <jirislaby@...il.com>,
	Pekka Enberg <penberg@...nel.org>,
	Thomas Meyer <thomas@...3r.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.36: Sound stop working

At Thu, 12 Aug 2010 14:41:51 -0700,
Linus Torvalds wrote:
> 
> On Thu, Aug 12, 2010 at 2:17 PM, Takashi Iwai <tiwai@...e.de> wrote:
> > At Thu, 12 Aug 2010 23:01:04 +0200,
> > Jiri Slaby wrote:
> >>
> >> Probably I got into this problem yesterday. Found out that PA fails to
> >> open /dev/snd/pcmC0D0p _second_ time. It opens it, then closes, then
> >> opens it again and gets EBUSY. aplay is OK.
> >
> > Yes, I can also confirm that it's broken on my machine in the same
> > way now :)  PA log shows that the succeeding open failed.
> >
> > PA tries to do quick open/close of the same device to figure out which
> > configuration is available at start-up.  This implies that the
> > fs/notify commits touching the open/close stuff can be the culprit.
> 
> Yeah. The f_count stuff is disgusting. This revert patch makes things
> work for me again.

It makes working for me, too.


thanks,

Takashi
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