diff -urN wt8-2e/include/asm-i386/pgalloc.h wt8-2f/include/asm-i386/pgalloc.h
--- wt8-2e/include/asm-i386/pgalloc.h	Sat Feb 16 15:30:57 2002
+++ wt8-2f/include/asm-i386/pgalloc.h	Sat Feb 16 15:37:46 2002
@@ -125,11 +125,13 @@
 {
 	unsigned long *ret;
 
+ 	preempt_disable();
 	if ((ret = (unsigned long *)pte_quicklist) != NULL) {
 		pte_quicklist = (unsigned long *)(*ret);
 		ret[0] = ret[1];
 		pgtable_cache_size--;
 	}
+ 	preempt_enable();
 	return (pte_t *)ret;
 }
 
@@ -141,12 +143,14 @@
 extern int pgt_cache_water[];
 static inline void pte_free_fast(pte_t *pte)
 {
+ 	preempt_disable();
 	if (pgtable_cache_size < pgt_cache_water[1]) {
 		*(unsigned long *)pte = (unsigned long) pte_quicklist;
 		pte_quicklist = (unsigned long *) pte;
 		pgtable_cache_size++;
 	} else
 		pte_free_slow(pte);
+ 	preempt_enable();
 }
 
 #define pte_free(pte)		pte_free_fast(pte)
diff -urN wt8-2e/include/linux/sched.h wt8-2f/include/linux/sched.h
--- wt8-2e/include/linux/sched.h	Sat Feb 16 15:32:02 2002
+++ wt8-2f/include/linux/sched.h	Sat Feb 16 15:32:56 2002
@@ -330,6 +330,7 @@
 
 	struct task_struct *next_task, *prev_task;
 	struct mm_struct *active_mm;
+	unsigned long flags;
 
 /* task state */
 	struct linux_binfmt *binfmt;