std::mutex crash when locked, win7 with libuv 1.91

[zhujie358]

libuv version: 1.91 Platform: WIN7 x64, the app is x86

I use VS2015, and put the libuv int a dll to do a server, the libuv not use thread or work queue. i have a std::mutex, module_mutex, and only use it in echo_read and tcp close callback. when try to lock the mutex in echo_read, sometimes failed to lock it, It finally go to mutex.c in function I don't know why this happens, and what i can do, thanks

static int mtx_do_lock(_Mtx_t mtx, const xtime *target)
    {   /* lock mutex */
    if ((mtx->type & ~_Mtx_recursive) == _Mtx_plain)
        {   /* set the lock */
        if (mtx->thread_id != static_cast<long>(GetCurrentThreadId()))
            {   /* not current thread, do lock */
            mtx->_get_cs()->lock();
            mtx->thread_id = static_cast<long>(GetCurrentThreadId());
            }
        ++mtx->count;

        return (_Thrd_success);
        }
    else
        {   /* handle timed or recursive mutex */
        int res = WAIT_TIMEOUT;
        if (target == 0)
            {   /* no target --> plain wait (i.e. infinite timeout) */
            if (mtx->thread_id != static_cast<long>(GetCurrentThreadId()))                <--------------err happened
                mtx->_get_cs()->lock();
            res = WAIT_OBJECT_0;

            }
                  ...
}

void echo_read(uv_stream_t *client, ssize_t nread, const uv_buf_t *buf)
{
    if (nread < 0) {

    } else if (nread > 0) {
        unique_lock<mutex>lk(module_mutex);
        }
}

[bnoordhuis]

I've moved this to libuv/help because it's almost certainly not an issue with libuv itself.