NANDflash driver crash with the information of "Memory

QNX USERS QNX6 - OS
1

Hi,Everyone!

I have some problem with my NANDflash driver. After command
fs_etfs_sam9261s, then it crashes offering information:

Process 53254 (fs_etfs_sam9261s) terminated SIGSEGV code=1 fltno=11 ip=0010205c ref=01800c34
Memory fault

The question is what these messages of fs_etfs_sam9261s crash mean?
I locate the position of crash where i use a out32(……). The address used in out32() is mapped at another place. In NANDflash driver i set ThreadCtl(_NTO_TCTL_IO, 0), but nothing changed. Now i don’t know what the problem of the NANDflash driver, can anybody tell me something, Thank you in advence!

2

Are you sure the TheadCtl is done at the right place.

3

But where is right place of TheadCtl, i put it at the the first place of main().

4

Can you post the code with the ThreadCtl().

On what processor is this?

5

Processor: Atmel sam9261s (arm926ejs)
QNX:6.2.1

I write another programme mapped device registers which are mapped in startup’s interrupt callout. It crash when it read or write values of mapped register .

[code]:
#define SAM9261S_PIOC_BASE 0xfffff800ULL
int main()
{
uintptr_t handle;
volatile uint32_t inhalt;

if(ThreadCtl(_NTO_TCTL_IO, 0) == -1) 
{ 
	printf("%s", strerror(errno)); 
	exit(-1); 
} 

handle = mmap_device_io(0x40,SAM9261S_PIOC_BASE);
printf("%s\n", strerror(errno));
printf("mapped addr:%x\n",handle);

inhalt=in32(handle + 0x08);
printf("%X\n",inhalt);
return 0;

}

[output information]:
No error
mapped addr:1800800
Process 16392 (io) terminated SIGSEGV code=1 fltno=11 ip=00100650 ref=01800808
Memory fault

I don’t know what’s wrong with it.