linux-kernel - Re: [alsa-devel] [PATCH]Support MCP89 and GT21x hdmi audio

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 11 Mar 2010 10:15:52 -0800
From:	VDR User <user.vdr@...il.com>
To:	Jaroslav Kysela <perex@...ex.cz>
Cc:	Wu Fengguang <fengguang.wu@...el.com>, Wei Ni <wni@...dia.com>,
	Takashi Iwai <tiwai@...e.de>,
	alsa-devel <alsa-devel@...a-project.org>,
	Jaroslav Kysela <jkysela@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	akpm <akpm@...ux-foundation.org>,
	Pavel Hofman <pavel.hofman@...ite.cz>
Subject: Re: [alsa-devel] [PATCH]Support MCP89 and GT21x hdmi audio

On Wed, Mar 10, 2010 at 11:30 PM, Jaroslav Kysela <perex@...ex.cz> wrote:
> On Wed, 10 Mar 2010, VDR User wrote:
>
>> [pid 22651] ioctl(21, 0x80044121, 0xb439d2cc) = -1 EPIPE (Broken pipe)
>> pcm_hw.c: snd_pcm_hw_delay() SNDRV_PCM_IOCTL_DELAY failed.
>
> -EPIPE means underrun condition.
>
> Try 'echo 101 > /proc/asound/card0/pcm0p/xrun_debug' and send dmesg output
> to check if the ring buffer pointer in the hda-intel driver does not return
> wrong values. Replace card0 and pcm0p with right identifiers (look to 'aplay
> -l' for right numbers).
>
> More info: http://www.alsa-project.org/main/index.php/XRUN_Debug

Hi, thanks for your further reply.  However, I don't see
"CONFIG_SND_PCM_XRUN_DEBUG" anywhere in the kernel config (both in
menuconfig or .config).  Also, in order to use the snapshot I had to
disable ALSA in my kernel anyways.  I did try to enable it just to see
if that option would appear somewhere but it did not.  I am using
stable kernel 2.6.33 btw.  I don't see how I can create
/proc/asound/card1/pcm3p/xrun_debug!

Best regards,
Derek
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/