[Pkg-alsa-devel] Bug#163018: marked as done (libasound2: libao alsa09 plugin segfaults in libasound2 if no ALSA driver is loaded)

Thu Oct 21 15:48:06 UTC 2004

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>From mdz@athenium.com Tue Oct 01 13:52:18 2002
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Date: Tue, 1 Oct 2002 14:51:47 -0400
From: Matt Zimmerman <mdz@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: alsa09 output plugin segfaults if no ALSA driver is loaded
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Package: vorbis-tools
Version: 1.0.0-1
Severity: normal

This may be a libasound problem, but I cannot tell without rebuilding; if
so, please reassign.  This happened to me when I did not have the
snd-intel8x0 module loaded for my sound card, and is easily reproducible.
The segfault disappears and everything works if I load the module.

Obviously, I don't expect the program to work in this situation, but it
should report an error rather than crashing.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1026 (LWP 30435)]
0x402b475e in __morecore () from /lib/libc.so.6
(gdb) bt
#0  0x402b475e in __morecore () from /lib/libc.so.6
#1  0x402b4758 in __morecore () from /lib/libc.so.6
#2  0x4032f256 in snd_pcm_hw_params_any () from /usr/lib/libasound.so.2
#3  0x402ef029 in ao_plugin_open () from /usr/lib/ao/plugins-2/libalsa09.so
#4  0x4006ca9b in _init () from /usr/lib/libao.so.2
#5  0x4006cd1b in ao_open_live () from /usr/lib/libao.so.2
#6  0x0804b746 in strcpy ()
#7  0x0804a2ce in strcpy ()
#8  0x40192fa5 in pthread_start_thread () from /lib/libpthread.so.0
#9  0x40192fed in pthread_start_thread_event () from /lib/libpthread.so.0
(gdb) 

-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux there 2.4.19-686 #1 Thu Aug 8 21:30:09 EST 2002 i686
Locale: LANG=en_US, LC_CTYPE=en_US (ignored: LC_ALL set)

Versions of packages vorbis-tools depends on:
ii  libao2                        0.8.3-1    Cross Platform Audio Output Librar
ii  libc6                         2.2.5-14.3 GNU C Library: Shared libraries an
ii  libcurl2                      7.9.8-2    Multi-protocol file transfer libra
ii  libogg0                       1.0.0-1    Ogg Bitstream Library
ii  libssl0.9.6                   0.9.6g-6   SSL shared libraries
ii  libvorbis0                    1.0.0-1    The Vorbis General Audio Compressi
ii  libvorbisenc2                 1.0.0-1    The Vorbis General Audio Compressi
ii  libvorbisfile3                1.0.0-1    The Vorbis General Audio Compressi

-- no debconf information

-- 
 - mdz

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Received: (at 163018-done) by bugs.debian.org; 21 Oct 2004 08:37:40 +0000
>From jdthood@aglu.demon.nl Thu Oct 21 01:37:40 2004
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Subject: Assumed fixed
From: Thomas Hood <jdthood@aglu.demon.nl>
To: 163018-done@bugs.debian.org
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I asked:
> Does this segfault still occur?

No reply, so let's assume that it doesn't.

-- 
Thomas