From: Lars-Peter Clausen <lars@metafoo.de>
To: Takashi Iwai <tiwai@suse.de>
Cc: Vinod Koul <vinod.koul@intel.com>,
alsa-devel@alsa-project.org,
Russell King <rmk+kernel@arm.linux.org.uk>,
Shengjiu Wang <shengjiu.wang@freescale.com>,
Dan Williams <dan.j.williams@intel.com>,
Jonah Petri <jpetri@izotope.com>,
Matt Campbell <mcampbell@izotope.com>,
Qiao Zhou <zhouqiao@marvell.com>,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] ALSA: pcm_dmaengine: Properly synchronize DMA on shutdown
Date: Tue, 20 Oct 2015 15:01:27 +0200 [thread overview]
Message-ID: <56263B27.9000106@metafoo.de> (raw)
In-Reply-To: <56262810.3040201@metafoo.de>
[...]
> I've tested this series with xrun injection and some modifications to the
> DMA driver to always trigger the race condition when the stream is stopped.
> And I've not seen any issues after the transfer re-started. (There is a
> dead-lock condition though but that does not seem to be related to this series)
Turns out that was a bug in the DMA driver that caused
snd_pcm_period_elapsed() to be called on the TRIGGER_START path. So the ALSA
side seems to be good.
next prev parent reply other threads:[~2015-10-20 13:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-20 9:46 [PATCH 0/4] dmaengine: Add transfer termination synchronization support Lars-Peter Clausen
2015-10-20 9:46 ` [PATCH 1/4] " Lars-Peter Clausen
2015-10-20 9:46 ` Lars-Peter Clausen
2015-10-29 21:59 ` Andy Shevchenko
2015-10-29 21:59 ` Andy Shevchenko
2015-10-30 14:16 ` Lars-Peter Clausen
2015-10-30 14:16 ` Lars-Peter Clausen
2015-10-20 9:46 ` [PATCH 2/4] dmaengine: virt-dma: Add synchronization helper function Lars-Peter Clausen
2015-10-20 9:46 ` [PATCH 3/4] dmaengine: axi_dmac: Add synchronization support Lars-Peter Clausen
2015-10-20 9:46 ` [PATCH 4/4] ALSA: pcm_dmaengine: Properly synchronize DMA on shutdown Lars-Peter Clausen
2015-10-20 11:17 ` Takashi Iwai
2015-10-20 11:17 ` Takashi Iwai
2015-10-20 11:40 ` Lars-Peter Clausen
2015-10-20 11:40 ` Lars-Peter Clausen
2015-10-20 12:36 ` Takashi Iwai
2015-10-20 13:01 ` Lars-Peter Clausen [this message]
2015-10-29 1:26 ` [PATCH 0/4] dmaengine: Add transfer termination synchronization support Vinod Koul
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56263B27.9000106@metafoo.de \
--to=lars@metafoo.de \
--cc=alsa-devel@alsa-project.org \
--cc=dan.j.williams@intel.com \
--cc=dmaengine@vger.kernel.org \
--cc=jpetri@izotope.com \
--cc=kuninori.morimoto.gx@renesas.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mcampbell@izotope.com \
--cc=rmk+kernel@arm.linux.org.uk \
--cc=shengjiu.wang@freescale.com \
--cc=tiwai@suse.de \
--cc=vinod.koul@intel.com \
--cc=zhouqiao@marvell.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.