[melodie@bento64:~]$ gdb volumeicon 
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Reading symbols from volumeicon...Reading symbols from /usr/lib/debug/.build-id/77/72f5f621fe4b896e691c45bc45d6b91e6ea867.debug...done.
done.
(gdb) run
Starting program: /usr/bin/volumeicon 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
ALSA lib control.c:953:(snd_ctl_open_noupdate) Invalid CTL HDA NVidia
volumeicon: alsa_backend.c :86 : asound_get_volume:  l'assertion « m_elem != ((void *)0) » a échoué.

Program received signal SIGABRT, Aborted.
0x00000032f6835267 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt full
#0  0x00000032f6835267 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00000032f6836eca in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00000032f682e03d in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x00000032f682e0f2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#4  0x0000000000407806 in asound_get_volume () at alsa_backend.c:86
        pmin = 4225536
        pmax = 6650000
        value = 4212985
#5  0x00000000004046fc in main (argc=1, argv=0x7fffffffe308) at volumeicon.c:912
No locals.
(gdb)