From: William Lee Irwin III <wli@holomorphy.com>
To: Pedro Larroy <piotr@member.fsf.org>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [BUG] D-states in test8
Date: Sun, 19 Oct 2003 20:33:06 -0700 [thread overview]
Message-ID: <20031020033306.GF1215@holomorphy.com> (raw)
In-Reply-To: <20031020022443.GA1723@81.38.200.176>
On Sun, Oct 19, 2003 at 06:36:10PM -0700, Andrew Morton wrote:
>> Well. The emphasis is on "might". That locking bug was on an error path
>> and it's quite possible that the deadlock is due to a different bug which
>> is still there.
On Mon, Oct 20, 2003 at 04:24:43AM +0200, Pedro Larroy wrote:
> Now seems I can't get them stuck.
> Hmm, Before I just opened twice /dev/dsp IIRC and then both processes got
> stuck in D.
> so snd_pcm_open_file must have returned < 0
> I can try to play a little with it tomorrow to see why gets into the error
> path.
O_NONBLOCK usage when snd_pcm_open_file() returns -EAGAIN (e.g.
SUBSTREAM_BUSY() is true, i.e. substream->file != NULL) is a trivial
way to get into the error path.
-- wli
next prev parent reply other threads:[~2003-10-20 3:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-19 20:56 Pedro Larroy
2003-10-19 21:03 ` William Lee Irwin III
2003-10-19 22:26 ` Pedro Larroy
2003-10-19 23:02 ` William Lee Irwin III
2003-10-19 23:01 ` Andrew Morton
2003-10-20 1:29 ` Pedro Larroy
2003-10-20 1:36 ` Andrew Morton
2003-10-20 2:24 ` Pedro Larroy
2003-10-20 3:33 ` William Lee Irwin III [this message]
2003-10-20 12:53 ` Diego Calleja García
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