[pulseaudio-discuss] Segmentation fault when load module-alsa-sink by commandline

Zhang, Xing Z xing.z.zhang at intel.com
Mon Oct 13 20:30:07 PDT 2008


Oh, I found the cause.
My system is FC9 and alsa-lib is 1.0.16 while PA-dev tree requests 1.0.17 version.
When I update alsa-lib to 1.0.17 the module-alsa-xxx.so comes back.
I post it here for people who meet same issue.

>-----Original Message-----
>From: pulseaudio-discuss-bounces at mail.0pointer.de
>[mailto:pulseaudio-discuss-bounces at mail.0pointer.de] On Behalf Of Zhang, Xing
>Z
>Sent: 2008年10月14日 9:50
>To: General PulseAudio Discussion
>Subject: Re: [pulseaudio-discuss] Segmentation fault when load
>module-alsa-sink by commandline
>
>I found below lines in src/Makefile
>#am__append_35 = \
>#>-->---libalsa-util.la \
>#>-->---module-alsa-sink.la \
>#>-->---module-alsa-source.la
>
>This may be why there is no module-alsa-xxx.so produced. If I un-commented it,
>a compiling error occurs with info "modules/alsa-util.c:29:23: error:
>asoundlib.h: No such file or directory". But I really installed alsa-lib-devel
>and asoundlib.h is actually at /usr/include/alsa/. Seems something wrong
>happened when bootstrap.sh run.
>
>>-----Original Message-----
>>From: pulseaudio-discuss-bounces at mail.0pointer.de
>>[mailto:pulseaudio-discuss-bounces at mail.0pointer.de] On Behalf Of Zhang,
>Xing
>>Z
>>Sent: 2008年10月13日 13:27
>>To: General PulseAudio Discussion
>>Subject: Re: [pulseaudio-discuss] Segmentation fault when load
>>module-alsa-sink by commandline
>>
>>>
>>>Heya!
>>>
>>>> I am newbie to PA. Now I am trying to enable PA from scratch. When I
>>>> enter "load-module module-alsa-sink" it complains "no such file
>>>> found", then I launch PA with param "-p /usr/lib/pulse-0.9/modules/"
>>>> unfortunately a segmentation fault happen while I load
>>>> module-alsa-sink. I notice default.pa uses module-hal-detect instead
>>>> of directly loading module-asla-xxx, so I want to know whether the
>>>> issue I met is a known bug? Or any other methods to load
>>>> module-alsa-xxx by manual?
>>>
>>>Hmm, do you mean you have compiled PA yourself?
>>>
>>>If you have to pass -p then this is probably a sign that your modules dir
>>>and pa binary do not match: /usr/lib/pulse-0.9/modules probably
>>>belongs to your installed version while your are running your own.
>>>
>>>Please note that the interface to the modules is not ABI or API stable
>>>in any way. That means, if you load a module that was compiled for a
>>>differnt PA version you will almost certainly get a segfault.
>>>
>>>If you want to run PA from your build tree then make sure to edit
>>>~/.pulse/daemon.conf. There, set dl-search-path to something like this:
>>>
>>>  dl-search-path = /home/lennart/projects/pulseaudio/src/.libs
>>>
>>>(This is the line I use, with having my GIT checkout of PA in
>>>~/projects/pulseaudio. The .libs/ is especially important because
>>>libtool puts its .so in that hidden subdir during build time)
>>>
>>>Hope this helps,
>>>
>>
>>[Zhang, Xing Z] Thanks a lot. It's quite help! But I found there is no
>>module-alsa-xxx.so at .libs/. Does PA remove it or I miss some compiling param
>>to produce it?
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