[alsa-devel] [PATCH] ALSA: pcm: 'BUG:' message unnecessarily triggers kerneloops

[Takashi Iwai]

At Thu, 10 Apr 2014 10:45:08 -0600,
Tim Gardner wrote:
> 
> BugLink: http://bugs.launchpad.net/bugs/1305480
> 
> The kerneloops-daemon scans dmesg for common crash signatures, among
> which is 'BUG:'. The message emitted by the PCM library is really a
> warning, so the most expedient thing to do seems to be to change the
> string.
> 
> Cc: Jaroslav Kysela <perex at perex.cz>
> Cc: Takashi Iwai <tiwai at suse.de>
> Cc: Mark Brown <broonie at linaro.org>
> Cc: Lars-Peter Clausen <lars at metafoo.de>
> Cc: JongHo Kim <furmuwon at gmail.com>
> Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
> ---
>  sound/core/pcm_lib.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
> index ce83def..2a0563d 100644
> --- a/sound/core/pcm_lib.c
> +++ b/sound/core/pcm_lib.c
> @@ -345,7 +345,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
>  			snd_pcm_debug_name(substream, name, sizeof(name));
>  			xrun_log_show(substream);
>  			pcm_err(substream->pcm,
> -				"BUG: %s, pos = %ld, buffer size = %ld, period size = %ld\n",
> +				"OVER RUN: %s, pos = %ld, buffer size = %ld, period size = %ld\n",

Use a term "XRUN", as it's not always an overrun.


thanks,

Takashi