Re: mmap question

From: Der Herr Hofrat (der.herr@mail.hofr.at)
Date: Tue Sep 24 2002 - 03:54:53 EST


>
> int
> init_module(void){
> ...
> kmalloc_area=kmalloc(LEN,GFP_USER);
> strncpy(kmalloc_area,init_msg,sizeof(init_msg));
> ...
> }

found the problem (naturally after posting....) - forgot to mark
the page as reserved...

        struct page *page;
        kmalloc_area=kmalloc(LEN,GFP_USER);
        page = virt_to_page(kmalloc_area);
        mem_map_reserve(page);
        memcpy(kmalloc_area,msg,sizeof(msg));

hofrat
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