我一直在使用libspotify一段时间，但是当我调用sp_session_logout() API时，我偶尔会遇到一个分段错误。
我做了一个测试，执行以下循环：
经常在3-4次迭代后崩溃。
代码和标准输出可以在这里找到： https://gist.github.com/jonas-lundqvist/4bb759a1f1ed09de46a1
编译：
gcc -std=gnu99 -g -Wall `pkg-config --cflags libspotify` -o test_login_logout login_logout.c appkey.c cred.c -lpthread `pkg-config --libs libspotify`
但是我注意到在每次迭代开始时创建了两个线程，但只有一个退出。
这是gdb的输出
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff7fbf700 (LWP 31308)]
[New Thread 0x7ffff7f3e700 (LWP 31309)]
[Thread 0x7ffff7f3e700 (LWP 31309) exited]
[New Thread 0x7ffff7f3e700 (LWP 31310)]
[New Thread 0x7ffff7ebd700 (LWP 31311)]
[Thread 0x7ffff7ebd700 (LWP 31311) exited]
[New Thread 0x7ffff7ebd700 (LWP 31313)]
[New Thread 0x7ffff6638700 (LWP 31314)]
[Thread 0x7ffff6638700 (LWP 31314) exited]
[New Thread 0x7ffff6638700 (LWP 31315)]
[New Thread 0x7ffff65b7700 (LWP 31316)]
Program received signal SIGSEGV, Segmentation fault.
检查我能看到的线程：
Id Target Id Frame
9 Thread 0x7ffff65b7700 (LWP 31316) "Network Thread" 0x00007ffff744b50d in poll () at ../sysdeps/unix/syscall-template.S:81
8 Thread 0x7ffff6638700 (LWP 31315) "Dns Thread" 0x00007ffff744b50d in poll () at ../sysdeps/unix/syscall-template.S:81
6 Thread 0x7ffff7ebd700 (LWP 31313) "Dns Thread" sem_wait ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
4 Thread 0x7ffff7f3e700 (LWP 31310) "Dns Thread" sem_wait ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
2 Thread 0x7ffff7fbf700 (LWP 31308) "Dns Thread" sem_wait ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
* 1 Thread 0x7ffff7fc1700 (LWP 31304) "test_login_logo" 0x00007ffff77eb5ac in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
如果我选择在其中一个迭代中创建的threds，我可以看到：
[Switching to thread 4 (Thread 0x7ffff7f3e700 (LWP 31310))]
#0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
85 ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S: No such file or directory.
#0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1 0x00007ffff780c1f8 in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#2 0x00007ffff77c608d in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#3 0x00007ffff7bc70a4 in start_thread (arg=0x7ffff7f3e700) at pthread_create.c:309
#4 0x00007ffff745404d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
不幸的是，libspotify开发似乎已经死了，但是有人知道是否有解决方法吗？
我需要在我的应用程序中执行多个sp_session_create() / sp_session_release() ...
编辑：崩溃线程的bt（来自另一个，但类似，运行）
#0 0x00007ffff77eb5ac in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#1 0x00007ffff7860b5a in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#2 0x00007ffff781683f in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#3 0x00007ffff7817141 in ?? () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#4 0x00007ffff78add7d in sp_session_logout () from /home/jonas/lib/libspotify/lib/libspotify.so.12
#5 0x0000000000400d51 in main (argc=1, argv=0x7fffffffe3a8) at login_logout.c:99