(gdb) thread apply all backtrace

Thread 14 (Thread 0x7fffdb7fe700 (LWP 28239)):
#0  0x00007ffff7482ead in nanosleep () from /lib/libc.so.6
#1  0x00007ffff74aa054 in usleep () from /lib/libc.so.6
#2  0x00007ffff609de31 in palsa_thread (context=0x0) at alsa.c:673
#3  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#4  0x00007ffff74afaed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fffe0fa8700 (LWP 28218)):
#0  0x00007ffff74a9923 in select () from /lib/libc.so.6
#1  0x00000000004036cd in server_loop (ctx=0x0) at main.c:392
#2  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#3  0x00007ffff74afaed in clone () from /lib/libc.so.6
#4  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fffe17a9700 (LWP 28217)):
#0  0x00007ffff7744edf in pthread_join () from /lib/libpthread.so.0
#1  0x0000000000418e68 in thread_join (tid=140736875980544) at threading_pthread.c:98
#2  0x00007ffff609d70f in palsa_free () at alsa.c:491
#3  0x00007ffff609d978 in palsa_stop () at alsa.c:573
#4  0x0000000000413ce9 in streamer_thread (ctx=0x0) at streamer.c:1065
#5  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#6  0x00007ffff74afaed in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fffe288f700 (LWP 28216)):
#0  0x00007ffff7747a34 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x000000000041920c in cond_wait (c=9842672, m=9952640) at threading_pthread.c:206
#2  0x00007fffea5ead65 in loading_thread (none=0x0) at coverart.c:110
#3  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#4  0x00007ffff74afaed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fffe8d9b700 (LWP 28213)):
#0  0x00007ffff74a7933 in poll () from /lib/libc.so.6
#1  0x00007ffff2a6c7d4 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff2a6d0ba in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff47e62d7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x00007fffea5bc19d in gtkui_thread (ctx=0x0) at gtkui.c:1107
#5  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#6  0x00007ffff74afaed in clone () from /lib/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fffe959c700 (LWP 28212)):
#0  0x00007ffff7747a34 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x000000000041920c in cond_wait (c=7781168, m=7780016) at threading_pthread.c:206
#2  0x00007fffeeeac60d in lfm_thread (ctx=0x0) at lastfm.c:701
#3  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#4  0x00007ffff74afaed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fffe9d9d700 (LWP 28211)):
#0  0x00007ffff7482ead in nanosleep () from /lib/libc.so.6
---Type <return> to continue, or q <return> to quit---
#1  0x00007ffff74aa054 in usleep () from /lib/libc.so.6
#2  0x00007fffef0bebdf in hotkeys_event_loop (unused=0x0) at hotkeys.c:383
#3  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#4  0x00007ffff74afaed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fffea59e700 (LWP 28210)):
#0  0x00007ffff7747a34 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x000000000041920c in cond_wait (c=7748192, m=7581856) at threading_pthread.c:206
#2  0x00007ffff5c8e128 in fetcher_thread (none=0x0) at artwork.c:774
#3  0x00007ffff7743d40 in start_thread () from /lib/libpthread.so.0
#4  0x00007ffff74afaed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffff7fc5700 (LWP 28207)):
#0  0x00007ffff7747a34 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x000000000041920c in cond_wait (c=7533024, m=7532976) at threading_pthread.c:206
#2  0x0000000000417f33 in messagepump_wait () at messagepump.c:106
#3  0x0000000000403a57 in player_mainloop () at main.c:501
#4  0x000000000040471a in main (argc=1, argv=0x7fffffffe4c8) at main.c:884