I am writing sendpage (this is called when sendfile system call is used) function for my protocol. User application calls with socket and filename, kernel maps file and pass struct page * to sendpage function. I use following expression to get virtual address and copy data virtual_address = phys_to_virt(page_to_pfn(page) << PAGE_SHIFT); This works fine on Pentium III machine with 515324 KB memory, but when I run same code on Xeon with 2074604 KB memory, I get Unable to handle kernel paging request at virtual address 3ab6c000 Is this because this address (struct page *) is not mapped ? how do I check in my code whether it is mapped or not, since it is mapped on Pentium. Thanks for help. _________________________________________________________________ Peek-a-boo FREE Tricks & Treats for You! http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
