I wrote a little module to test virt_to_phys:
unsigned long test_data;
int init_module(void)
{
void *virt = &test_data;
unsigned long phys = virt_to_phys(virt);
When I run this and check the valur of virt and phys, it appears that phys is
outside the range of physical memory! That is, if I have 512MB of RAM, then
phys is equal to about 520M. However, if I make test_data a local variable:
int init_module(void)
{
unsigned long test_data;
void *virt = &test_data;
unsigned long phys = virt_to_phys(virt);
Then I get a number which makes sense (less than 512M)
Could someone explain this to me?
--
Timur Tabi - [EMAIL PROTECTED]
Interactive Silicon - http://www.interactivesi.com
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