On mer., 2012-02-08 at 00:14 +0100, Manolo wrote: > On Tue, 07 Feb 2012 16:59:11 +0100 > Yves-Alexis Perez wrote: > > On mar., 2012-02-07 at 16:52 +0100, Manolo wrote: > > > Hi, > > > Every time I start or stop playing sound xfce4-mixer crash with > > > > > > xfce4-mixer: simple_none.c:1350: get_enum_item_ops: Assertion > > > `helem' failed. > > > > Could you install alsa debugging symbols? > > > > Regards, > > Well, I'm no sure if I've installed the right *-dbg packages, but here > is the new backtrace: > > (gdb) bt > #0 0x00007f358cbba405 in *__GI_raise (sig=<optimized out>) at > ../nptl/sysdeps/unix/sysv/linux/raise.c:64 > #1 0x00007f358cbbd680 in *__GI_abort () at abort.c:92 > #2 0x00007f358cbb35b1 in *__GI___assert_fail (assertion=0x7f3584b6bb1a > "helem", file=<optimized out>, line=1350, function=0x7f3584b6bab0 > "get_enum_item_ops") at assert.c:81 > #3 0x00007f3584afe657 in get_enum_item_ops (elem=<optimized out>, > channel=SND_MIXER_SCHN_FRONT_LEFT, itemp=0x7f3584aaf91c) at simple_none.c:1350 > #4 0x00007f3584dcb304 in gst_alsa_mixer_update_option > (alsa_opts=0x7f3590b3dd10, mixer=<optimized out>) at gstalsamixer.c:894 > #5 gst_alsa_mixer_update (mixer=0x7f3590b87d30, elem=0x7f3590bd0700) at > gstalsamixer.c:237 > #6 0x00007f3584dcb5d5 in gst_alsa_mixer_elem_handle_callback > (elem=0x7f3590bd0700, mask=<optimized out>) at gstalsamixer.c:254 > #7 0x00007f3584afae3d in snd_mixer_elem_throw_event (mask=4294967295, > elem=0x7f3590bd0700) at mixer.c:321 > #8 snd_mixer_elem_remove (elem=0x7f3590bd0700) at mixer.c:456 > #9 0x00007f3584b00690 in simple_event (class=0x7f3590b87dd0, mask=2, > helem=0x7f3590bc84f0, melem=0x7f3590bd0700) at simple_none.c:1680 > #10 0x00007f3584afa4fe in hctl_elem_event_handler (helem=0x7f3590bc84f0, > mask=2) at mixer.c:159 > #11 0x00007f3584af0429 in snd_hctl_elem_throw_event (mask=<optimized out>, > elem=<optimized out>) at hcontrol.c:213 > #12 snd_hctl_handle_event (event=0x7f3584aafa40, hctl=0x7f3590bb8800) at > hcontrol.c:767 > #13 snd_hctl_handle_events (hctl=0x7f3590bb8800) at hcontrol.c:793 > #14 0x00007f3584afb659 in snd_mixer_handle_events (mixer=0x7f3590baf770) at > mixer.c:847 > #15 0x00007f3584dcad6d in task_monitor_alsa (data=0x7f3590b87d30) at > gstalsamixer.c:471 > #16 0x00007f358dd30420 in gst_task_func (task=0x7f3590bb9180) at gsttask.c:318 > #17 0x00007f358d5cad08 in g_thread_pool_thread_proxy (data=<optimized out>) > at /tmp/buildd/glib2.0-2.30.2/./glib/gthreadpool.c:319 > #18 0x00007f358d5c87e6 in g_thread_create_proxy (data=0x7f3590bd3130) at > /tmp/buildd/glib2.0-2.30.2/./glib/gthread.c:1962 > #19 0x00007f358cf12b50 in start_thread (arg=<optimized out>) at > pthread_create.c:304 > #20 0x00007f358cc5d4ad in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 > #21 0x0000000000000000 in ?? () >
That looks to me like an issue in gstreamer. Before reassigning, could you try to see if it crash the gnome mixer in the gnome-media package? Regards, -- Yves-Alexis
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