paging problem

[psnix]

hi

when I expand my heap (and change page table with adding new pages to it) . I get an error!

changing entrys of page table and directory is enough or i must do somthing else like as invaliding it

[Armin]

What kind of error do you get? A page fault?
If so, you can retrieve additional information
- from CR2 (the address, where the page fault was generated)
- in your interrupt service routine: along with the exception number you get an error code for this exception, ie. for the page fault. It tells you if it was an read or write access which caused the page fault etc.

[piranha]

Please, ask smart questions. What is the error exactly? Also, we wont be able to help at all without some reference to your code, so please post what you're doing. Also, please describe any debugging steps you've taken so far (if you haven't done that, I recommend that first).

-JL

[psnix]

hi

I'm update my svn:
http://sourceforge.net/projects/arax/develop

when in src/mmngr.c i remove lines 178-186 i got a page fault:

i think error is in the updating page_table entrys and they not updated on the MMU

[gerryg400]

hi

when I expand my heap (and change page table with adding new pages to it) . I get an error!

changing entrys of page table and directory is enough or i must do somthing else like as invaliding it

It depends. Some bits can be changed without invalidating the tlb. e.g. the present bit may be set.