From: Takashi Iwai <tiwai@suse.de>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>, rjwysocki@sisk.pl
Subject: Re: [Bug 1804] New: IRQ/DMA related problem with ALSA drivers on ADM64
Date: Thu, 08 Jan 2004 18:27:28 +0100 [thread overview]
Message-ID: <s5hwu82xse7.wl@alsa2.suse.de> (raw)
In-Reply-To: <3960000.1073498396@[10.10.2.4]>
At Wed, 07 Jan 2004 09:59:56 -0800,
Martin J. Bligh wrote:
> request_module: failed /sbin/modprobe -- snd-card-1. error = 256
> request_module: failed /sbin/modprobe -- sound-slot-1. error = 256
> request_module: failed /sbin/modprobe -- snd-card-1. error = 256
they come likely from KDE, which probes two devices as default.
> ALSA sound/core/pcm_native.c:1267: playback drain error (DMA or IRQ trouble?)
> ALSA sound/core/pcm_lib.c:214: Unexpected hw_pointer value (stream = 0, delta: -7, max
> jitter = 5120): wrong interrupt acknowledge?
since the delta value (the sample count of delayed interrupt) is
small, it looks like the interrupt handling is sloppy. if it's an
ACPI problem, usually the delta value is much bigger.
--
Takashi Iwai <tiwai@suse.de> ALSA Developer - www.alsa-project.org
prev parent reply other threads:[~2004-01-08 17:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3960000.1073498396@10.10.2.4>
2004-01-07 17:59 ` [Bug 1804] New: IRQ/DMA related problem with ALSA drivers on ADM64 Martin J. Bligh
2004-01-08 17:27 ` Takashi Iwai [this message]
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