There are reports of alsactl segfaulting:
https://bugzilla.redhat.com/show_bug.cgi?id=1335431 https://bugzilla.redhat.com/show_bug.cgi?id=1283737
Core was generated by `/usr/sbin/alsactl -s -n 19 -c -E ALSA_CONFIG_PATH=/etc/alsa/alsactl.conf --init'. Program terminated with signal SIGSEGV, Segmentation fault. #0 free_list (list=list@entry=0x20) at daemon.c:74 74 for (i = 0; i < list->size; i++)
Thread 1 (Thread 0x7fd798589700 (LWP 1015)): #0 free_list (list=list@entry=0x20) at daemon.c:74 i = 0 #1 0x000055e3c8704935 in card_free (card=0x55e3ca6c5018) at daemon.c:83 c = 0x0 #2 0x000055e3c87054a4 in state_daemon (file=0x55e3c8705ced "/var/lib/alsa/asound.state", cardname=0x0, period=300, pidfile=0x55e3c8705cbc "/var/run/alsactl.pid") at daemon.c:455 count = 2 pcount = <optimized out> psize = <optimized out> i = 1 j = <optimized out> k = <optimized out> changed = 0 last_write = 1463036017 now = 1463037368 revents = 0 cards = 0x55e3ca6c5010 pfd = <optimized out> pfdn = <optimized out> __FUNCTION__ = "state_daemon" #3 0x000055e3c86f90e7 in main (argc=<optimized out>, argv=<optimized out>) at alsactl.c:370 devfiles = {0x55e3c8705d08 "/dev/snd/controlC", 0x55e3c8705db3 "/dev/snd/pcmC", 0x55e3c8705dc1 "/dev/snd/midiC", 0x55e3c8705dd0 "/dev/snd/hwC", 0x0} cfgfile = 0x55e3c8705ced "/var/lib/alsa/asound.state" initfile = 0x7ffc87ee1f80 "/lib/alsa/init/00main" pidfile = 0x55e3c8705cbc "/var/run/alsactl.pid" cardname = 0x0 ncardname = "(\201Z\230\327\177\000\000\000\000\000\000\000\000\000" cmd = 0x7ffc87ee1f96 "rdaemon" tmp = <optimized out> removestate = 0 init_fallback = 1 period = 300 background = 0 daemoncmd = <optimized out> use_nice = 19 sched_idle = 1 o = <optimized out> j = <optimized out> k = <optimized out> res = 0 long_option = 0x0 short_option = 0x0
Any idea what might be causing this? Any other debug info that would be helpful? It doesn't crash all the time.