使用HIP平台运行PaStiX中的下列代码中的hipMemcpy函数时出现错误：
d_x = (double *)solver.malloc(n * sizeof(double));
d_b = (double *)solver.malloc(n * sizeof(double));
hipPointerAttribute_t attr;
hipError_t ret=hipPointerGetAttributes(&attr,d_x);
hipMemcpy( d_x, x, n * sizeof(double), hipMemcpyHostToDevice);
hipMemcpy( d_b, b, n * sizeof(double), hipMemcpyHostToDevice);
错误类型为SIGSEGV段错误，调用栈如下：
#0 0x00002aaab768d159 in __memcpy_sse2 () from /lib64/libc.so.6
#1 0x00002aaaac15a930 in ?? () from /public/home/ghfund2_a36/dtk-22.04.2//hip/lib/libgalaxyhip.so.4
#2 0x00002aaaac15aafa in ?? () from /public/home/ghfund2_a36/dtk-22.04.2//hip/lib/libgalaxyhip.so.4
#3 0x00002aaaac15d3da in ?? () from /public/home/ghfund2_a36/dtk-22.04.2//hip/lib/libgalaxyhip.so.4
#4 0x00002aaaac165167 in hipMemcpy () from /public/home/ghfund2_a36/dtk-22.04.2//hip/lib/libgalaxyhip.so.4
#5 0x0000000000c00464 in d_gmres_gpu_smp (pastix_data=0x96f1000, x=0x182ee00, b=0x18291a0) at

其中d_x为设备上的内存， x为主机上的内存，对内存检查的结果如下：
hipPointerGetAttributes(d_x)返回：ret=hipSuccess，attr=$15 = {memoryType = hipMemoryTypeDevice, device = 0, devicePointer = 0x2aac400316f0, hostPointer = 0x2aac40000000, isManaged = 0, allocationFlags = 0}，同时对x+0和x+n-1也可以正常解引用。
如果用hipHostMalloc代替malloc为x变量分配主机内存， 则会出现如下错误：
Invalid address access: 0x2adf80031000, Error code: 3.

麻烦问一下出现这种情况一般是什么原因？