From mboxrd@z Thu Jan  1 00:00:00 1970
From: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: alsa-lib TLVs and valgrind
Date: Wed, 02 Feb 2011 14:12:57 +0100
Message-ID: <4D495859.6070101@ladisch.de>
References: <4D4945FA.4030506@gmx.de>
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To: "Sebastian H." <vand2@gmx.de>
Cc: ALSA Development Mailing List <alsa-devel@alsa-project.org>
List-Id: alsa-devel@alsa-project.org

Sebastian H. wrote:
> I'm about to release a new version of alsamixer-qt4
> (now named qasmixer) and ran the program through valgrind.
> 
> valgrind --track-origins=yes src/qasmixer &> valgrind.log
> 
> The log file contains tons of warnings like this
> 
> ==3432== Conditional jump or move depends on uninitialised value(s)
> ...
> ... (qasmixer function calls)
> ...
> ==3432==  Uninitialised value was created by a heap allocation
> ... malloc (vg_replace_malloc.c:236)
> ... init_db_range (simple_none.c:1111)
> ... get_dB_range (simple_none.c:1156)
> ... get_dB_range_ops (simple_none.c:1173)
> ... snd_mixer_selem_get_playback_dB_range (simple.c:298)

Valgrind doesn't know about some of the ALSA ioctls.
Somebody would have to add them to valgrind.


Regards,
Clemens