Re: Stack unwinding using kprobes

[Basavaraj Dengi]

Hi

In the piece of code below

pfn = (addr >> PAGE_SHIFT);
if (!pfn_valid(pfn))

[Where PAGE_SHIFT is 12; and addr I tried from 0x0 to > 0xc0000000]
pfn_valid always fails;

What is wrong? Am I missing something?

Regards
Basavaraj