arm版本的aclrtSetDevice返回错误码507033

一、问题现象（附截图）：
按顺序运行下面三个函数
aclInit   通过
aclrtGetDeviceCount　通过
aclrtSetDevice　错误码　
二、软件版本:
Ascend-cann-toolkit_20.2.rc1_linux-aarch64.zip
运行打印：
aclInit ok!
aclrtGetDeviceCount ok! count is 1
aclrtSetDevice,  errorCode is 507033
内核错误日志：

Apr 27 19:48:50 localhost.localdomain kernel: [ascend] [INFO] [devdrv] [devdrv_manager_check_process_sign 3351] <kworker/0:1:31> host start check_process_sign
Apr 27 19:48:50 localhost.localdomain kernel: [ascend] [INFO] [devdrv] [devdrv_manager_check_process_sign 3389] <kworker/0:1:31> host finish check_process_sign
Apr 27 19:48:50 localhost.localdomain acl_test[1370]: [ascend][ERROR][2021-04-27-19:48:50:142327][curpid: 1370, 1370][drv][devmm][devmm_svm_map 61]map mem-dev err(mapped=0xffffffffffffffff,start=0x100000000000.
Apr 27 19:48:50 localhost.localdomain acl_test[1370]: [ascend][ERROR][2021-04-27-19:48:50:142633][curpid: 1370, 1370][drv][devmm][devmm_virt_init_heap_mgmt 811]svm init error!
Apr 27 19:48:50 localhost.localdomain acl_test[1370]: [ascend][ERROR][2021-04-27-19:48:50:142688][curpid: 1370, 1370][drv][devmm][devmm_setup_device 42]init heap mgmt fail, result=6, devid(0)

附代码如下：
#include <iostream>
#include "acl/acl.h"
int main() {
    aclError ret = aclInit(nullptr);
    if (ret != ACL_ERROR_NONE) {
        std::cout<< "aclInit failed,  errorCode is " << static_cast<int32_t>(ret)<<std::endl;
        return -1;
    }
    std::cout<<"aclInit ok!"<<std::endl;
    uint32_t count=0;
    ret=aclrtGetDeviceCount(&count);
    if (ret != ACL_ERROR_NONE) {
        std::cout << "aclrtGetDeviceCount,  errorCode is " << static_cast<int32_t>(ret)<<std::endl;
        return -1;
    }
    std::cout<<"aclrtGetDeviceCount ok! count is "<<count<<std::endl;
    ret=aclrtSetDevice(0);
    if (ret != ACL_ERROR_NONE) {
        std::cout << "aclrtSetDevice,  errorCode is " << static_cast<int32_t>(ret)<<std::endl;
        return -1;
    }
    std::cout<<"aclrtSetDevice ok!"<<std::endl;
    ret = aclrtResetDevice(0);
    if(ret!=ACL_ERROR_NONE){
        std::cout << "aclrtResetDevice,  errorCode is" << static_cast<int32_t>(ret)<<std::endl;
    }
    std::cout<<"aclrtResetDevice ok!"<<std::endl;
    ret=aclFinalize();
    if(ret!=ACL_ERROR_NONE) {
        std::cout << "aclFinalize,  errorCode is" << static_cast<int32_t>(ret)<<std::endl;
    }
    std::cout<<"aclFinalize ok!"<<std::endl;
    return 0;
}

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