Choose appropriate function from stack which has failed. Suppose function failed is "function_foo()" then you will have entry like kernel: [<ffffffff814ec2ba>] ? function_foo+198 in stack trace. Pass corresponding debug .ko to gdb and give command (gdb) l* function_foo+198 This will give you .c file which caused failure with line number. Suppose you got details like .c file is foo.c and line number is 122 then you can do more debugging with following command (gdb) info line foo.c:122 BTW can you put stack trace (if you are allowed) on thread ? On Tue, Jan 22, 2013 at 7:00 AM, horseriver <horserivers@gmail.com> wrote:
hi:
I am debuging kernel with gdb , when it comes into a page_fault exception ,how to get to know how does that address come out ? It is the same to ask : which code is using that address , causing the page_fault exception?
thanks!
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