[pulseaudio-discuss] Pulseaudio on pandaboard problem re-visited..

Arun Raghavan arun.raghavan at collabora.co.uk
Wed May 2 21:21:33 PDT 2012

On Wed, 2012-05-02 at 09:04 -0600, Shawn Ferris wrote:
> > Linaro has its own repository to maintain patched packages, including
> > UCM, I think you could get alsa-lib and pulseaudio packages there to
> > make UCM work better.
> Thank's Wei (I hope that's your first name.. I have a friend named
> Wei, so I'm guessing.. my apologies if I'm wrong) :D
> I'm fairly unfamiliar with Debian/Ubuntu, and even more unfamiliar
> with launchpad.. BUT, I think I figured out which pieces I need for
> each. I filtered on precise and pulled out the tarballs (kernel,
> pulseaudio and alsalib) and when needed, used the debian/patches to
> apply to the sources. I'm rebuilding my rootfs now, but I won't be
> able to test it until later tonight.
> I also found out what I was doing wrong on the debugging symbols, but
> I don't know if it's any more helpful:
> Program received signal SIGSEGV, Segmentation fault.
> 0x00001bf8 in ?? ()
> (gdb) bt
> #0  0x00001bf8 in ?? ()
> #1  0xb2acaa14 in module_alsa_card_LTX_pa__init (m=0x2bb38)
>     at modules/alsa/module-alsa-card.c:635
> #2  0xb6f8fc02 in pa_module_load (c=0x25a28, name=0x2bb20 "module-alsa-card",
>     argument=0x2e580 "use_ucm=1") at pulsecore/module.c:109

This trace looks different in that the segfault is at some bogus
address. You want to traverse up the stacktrace and see what's happening
at module-alsa-card.c, line 635 there.

-- Arun

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