From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Monney Subject: ioctl(arg) - uninitialised byte(s) in alsa lib Date: Wed, 12 Mar 2008 12:49:44 +0100 Message-ID: <47D7C358.6050401@xwaves.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from pimpette.xwaves.net (pimpette.xwaves.net [193.58.255.133]) by alsa0.perex.cz (Postfix) with ESMTP id C2EB7243E5 for ; Wed, 12 Mar 2008 12:49:45 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by pimpette.xwaves.net (Postfix) with ESMTP id 807B87AB31 for ; Wed, 12 Mar 2008 12:52:05 +0100 (CET) Received: from pimpette.xwaves.net ([127.0.0.1]) by localhost (pimpette.xwaves.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Bpe2mCnPjRDF for ; Wed, 12 Mar 2008 12:52:03 +0100 (CET) Received: from [192.168.0.151] (84-74-74-177.dclient.hispeed.ch [84.74.74.177]) by pimpette.xwaves.net (Postfix) with ESMTP id 11BAD7AAF7 for ; Wed, 12 Mar 2008 12:52:03 +0100 (CET) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi all, I'm currently working on a small audio stack on top of alsa and I'm getting some "Syscall param ioctl(arg) contains uninitialized byte(s)" errors when I run my program using valgrind. I don't know if it is a bug in my program or in alsa lib. What I'm sure is that my program is working even though these errors appear. The dump: ==14279== Syscall param ioctl(arg) contains uninitialised byte(s) ==14279== at 0x40007F2: (within /lib/ld-2.6.1.so) ==14279== by 0x40DE911: snd_pcm_prepare (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40F2552: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40DE911: snd_pcm_prepare (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4F0C: snd_pcm_hw_params (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x80A6599: AlsaConfigureDevice (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== by 0x80A6DE3: pjmedia_snd_open (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== by 0x809EC85: start_sound_device (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== by 0x805EE1E: pjsua_set_snd_dev (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== by 0x80615AA: pjsua_media_subsys_start (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== by 0x805AAC5: pjsua_start (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== by 0x805001B: app_main (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) ==14279== ==14279== Syscall param ioctl(arg) contains uninitialised byte(s) ==14279== at 0x40007F2: (within /lib/ld-2.6.1.so) ==14279== by 0x40DE911: snd_pcm_prepare (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4F0C: snd_pcm_hw_params (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x411C213: snd_pcm_direct_initialize_slave (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x4115DFB: snd_pcm_dmix_open (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x4116286: _snd_pcm_dmix_open (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4384: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4A82: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4AF2: snd_pcm_open_slave (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x4100CEF: _snd_pcm_plug_open (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4384: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4A82: (within /usr/lib/libasound.so.2.0.0) ==14279== ==14279== Syscall param ioctl(arg) contains uninitialised byte(s) ==14279== at 0x40007F2: (within /lib/ld-2.6.1.so) ==14279== by 0x40DE7D1: snd_pcm_start (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x411C5DF: snd_pcm_direct_initialize_slave (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x4115DFB: snd_pcm_dmix_open (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x4116286: _snd_pcm_dmix_open (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4384: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4A82: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4AF2: snd_pcm_open_slave (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x4100CEF: _snd_pcm_plug_open (in /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4384: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x40E4A82: (within /usr/lib/libasound.so.2.0.0) ==14279== by 0x80A6E1B: pjmedia_snd_open (in /home/mathieu/BProject/WiFi-VoIP/pjsip/pjsip_host_x86/pjsip-apps/bin/pjsua-i686-pc-linux-gnu) Thank you, Mathieu Monney