AARCH64架构，brpc启动时候，卡死在bthread初始化的时候

[lzk90s]

Describe the bug (描述bug)
AARCH64架构，brpc启动时候，卡死在bthread初始化的时候。

To Reproduce (复现方法)

Expected behavior (期望行为)
正常执行

Versions (各种版本)
OS: ubuntu16.04
Compiler: gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.12) Target: aarch64-linux-gnu
brpc: master
protobuf:

Additional context/screenshots (更多上下文/截图)

(gdb) bt
#0 0x0000ffffbe23ae94 in nanosleep () at ../sysdeps/unix/syscall-template.S:86
#1 0x0000ffffbe260368 in usleep (useconds=useconds@entry=100) at ../sysdeps/posix/usleep.c:32
#2 0x0000ffffa2f17e18 in bthread::TaskControl::init (this=this@entry=0x280ddf0, concurrency=) at /root/brpc/src/bthread/task_control.cpp:180
#3 0x0000ffffa2f294e4 in bthread::get_or_new_task_control () at /root/brpc/src/bthread/bthread.cpp:91
#4 bthread::start_from_non_worker (arg=0x0, fn=0xffffa2ff9d50 brpc::GlobalUpdate(void*), attr=0x0, tid=0xffffffffc8d0) at /root/brpc/src/bthread/bthread.cpp:128
#5 bthread_start_background (tid=0xffffffffc8d0, tid@entry=0xffffffffc910, attr=attr@entry=0x0, fn=fn@entry=0xffffa2ff9d50 brpc::GlobalUpdate(void*), arg=arg@entry=0x0)
at /root/brpc/src/bthread/bthread.cpp:193
#6 0x0000ffffa2ffc084 in brpc::GlobalInitializeOrDieImpl () at /root/brpc/src/brpc/global.cpp:604
#7 0x0000ffffbe4aea3c in __pthread_once_slow (once_control=0xffffa3ef6450 brpc::register_extensions_once, init_routine=0xffffa2ffb038 brpc::GlobalInitializeOrDieImpl()) at pthread_once.c:116
#8 0x0000ffffbe4aeaec in __GI___pthread_once (once_control=once_control@entry=0xffffa3ef6450 brpc::register_extensions_once,
init_routine=init_routine@entry=0xffffa2ffb038 brpc::GlobalInitializeOrDieImpl()) at pthread_once.c:143
#9 0x0000ffffa2ff9cc4 in brpc::GlobalInitializeOrDie () at /root/brpc/src/brpc/global.cpp:609
#10 0x0000ffffa301be6c in brpc::StringToProtocolType (name=..., print_log_on_unknown=true) at /root/brpc/src/brpc/protocol.cpp:160
#11 0x0000ffffb96f8290 in brpc::StringToProtocolType (type=...) at /usr/local/include/brpc/adaptive_protocol_type.h:37
#12 0x0000ffffb96f835c in brpc::AdaptiveProtocolType::operator= (this=0xffffffffd380, name=...) at /usr/local/include/brpc/adaptive_protocol_type.h:62

--------------定时器线程-------------
(gdb) bt
#0 syscall () at ../sysdeps/unix/sysv/linux/aarch64/syscall.S:38
#1 0x0000ffffa2f27a04 in bthread::futex_wait_private (timeout=, expected=, addr1=0x27f7608) at /root/brpc/src/bthread/sys_futex.h:40
#2 bthread::TimerThread::run (this=0x27f75c0) at /root/brpc/src/bthread/timer_thread.cpp:431
#3 0x0000ffffa2f281e4 in bthread::TimerThread::run_this (arg=) at /root/brpc/src/bthread/timer_thread.cpp:120
#4 0x0000ffffbe4a6fc4 in start_thread (arg=0xffffa2f281d8 bthread::TimerThread::run_this(void*)) at pthread_create.c:335
#5 0x0000ffffbe2663f0 in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:89

-----------有几个线程的调用栈全部是下面这样的，在等待mutex释放-------------
(gdb) bt
#0 0x0000ffffbe4b050c in __lll_lock_wait (futex=0xffffbe80d9b8 <_rtld_global+2440>, private=0) at lowlevellock.c:46
#1 0x0000ffffbe4a9858 in __GI___pthread_mutex_lock (mutex=0xffffbe80d9b8 <_rtld_global+2440>) at pthread_mutex_lock.c:115
#2 0x0000ffffbe7f4338 in _dl_tlsdesc_resolve_early_return_p (caller=0xffffb8b192d0 bthread::tls_bls@plt, td=0xffffb972bee8) at ./tlsdeschtab.h:146
#3 _dl_tlsdesc_resolve_rela_fixup (td=0xffffb972bee8, l=0x8000000000000000) at ../sysdeps/aarch64/tlsdesc.c:52
#4 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#5 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#6 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#7 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#8 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#9 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#10 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#11 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#12 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#13 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#14 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#15 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#16 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#17 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
#18 0x0000ffffbe7f4768 in _dl_tlsdesc_resolve_rela () at ../sysdeps/aarch64/dl-tlsdesc.S:283
。。。。。。。。。

(gdb) frame 1
#1 0x0000ffffbe4a9858 in __GI___pthread_mutex_lock (mutex=0xffffbe80d9b8 <_rtld_global+2440>) at pthread_mutex_lock.c:115
115 in pthread_mutex_lock.c
(gdb) p *mutex
$4 = {
__data = {
__lock = 2,
__count = 1,
__owner = 12196, --------- mutex被bthread::TaskControl::init这个线程持有。
__nusers = 1,
__kind = 1,
__spins = 0,
__list = {
__prev = 0x0,
__next = 0x0
}
},
__size = "\002\000\000\000\001\000\000\000\244/\000\000\001\000\000\000\001", '\000' <repeats 30 times>,
__align = 4294967298
}

[wwbmmm]

We close this issue because it is irreproducible and inactive for a long time.
If you can reproduce this issue with the latest version of bRPC, please reopen this issue and tell us how to reproduce.