[alsa-devel] seg fault with 1.0.17rc2
tiwai at suse.de
Thu Jun 26 18:20:23 CEST 2008
At Thu, 26 Jun 2008 12:03:24 -0400,
Jerry Geis wrote:
> Takashi Iwai wrote:
> > At Thu, 26 Jun 2008 10:38:57 -0400,
> > Jerry Geis wrote:
> >> #0 0xb7e892ff in memcpy () from /lib/tls/libc.so.6
> >> #1 0xb74e40a9 in snd_pcm_area_copy (dst_area=0xb7125b70, dst_offset=0,
> >> src_area=0x81dc1c0, src_offset=170, samples=0,
> >> format=SND_PCM_FORMAT_S16_LE) at pcm.c:2589
> > samples = 0 and...
> >> #2 0xb74e438d in snd_pcm_areas_copy (dst_areas=0xb7125b7c,
> >> dst_offset=0, src_areas=0x81dc1cc, src_offset=170, channels=1,
> >> frames=122, format=SND_PCM_FORMAT_S16_LE) at pcm.c:2736
> > ... here frames = 122. Something inconsistent around here.
> > snd_pcm_areas_copy() must passe samples=frames when channels=1.
> > Could you check the values via gdb?
> > Takashi
> I am not sure what your asking me. The output I provided is gdb what else
> can I check? Really anxious to get this USB sound device playing
Check whether frames still 122 in frame#1, for example.
> Is there a better asound.conf to use?
The strange thing is that the recent config for usb-audio also uses
dmix/dsnoop. And you don't get any errors with the system-default
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