kern

changeset 48:4c9c16754b59

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fixed the page fault
author John Tsiombikas <nuclear@member.fsf.org>
date Thu, 28 Jul 2011 17:56:05 +0300
parents f65b348780e3
children 50730d42d2d3
files src/vm.c
diffstat 1 files changed, 4 insertions(+), 4 deletions(-) [+]
line diff
     1.1 --- a/src/vm.c	Thu Jul 28 05:43:04 2011 +0300
     1.2 +++ b/src/vm.c	Thu Jul 28 17:56:05 2011 +0300
     1.3 @@ -505,7 +505,7 @@
     1.4   */
     1.5  uint32_t clone_vm(void)
     1.6  {
     1.7 -	int i, dirpg, tblpg, kmem_start_pg;
     1.8 +	int i, dirpg, tblpg, kstart_dirent;
     1.9  	uint32_t paddr;
    1.10  	uint32_t *ndir, *ntbl;
    1.11  
    1.12 @@ -528,10 +528,10 @@
    1.13  	 */
    1.14  	free_phys_page(virt_to_phys(tblpg));
    1.15  
    1.16 -	kmem_start_pg = ADDR_TO_PAGE(KMEM_START);
    1.17 +	kstart_dirent = ADDR_TO_PAGE(KMEM_START) / 1024;
    1.18  
    1.19  	/* user space */
    1.20 -	for(i=0; i<kmem_start_pg; i++) {
    1.21 +	for(i=0; i<kstart_dirent; i++) {
    1.22  		if(pgdir[i] & PG_PRESENT) {
    1.23  			paddr = alloc_phys_page();
    1.24  			map_page(tblpg, ADDR_TO_PAGE(paddr), 0);
    1.25 @@ -547,7 +547,7 @@
    1.26  	}
    1.27  
    1.28  	/* kernel space */
    1.29 -	for(i=kmem_start_pg; i<1024; i++) {
    1.30 +	for(i=kstart_dirent; i<1024; i++) {
    1.31  		ndir[i] = *PGTBL(i);
    1.32  	}
    1.33