2 files changed, 1 insertions(+), 3 deletions(-)

M pc/mem.h
M port/devproc.c

@@ 49,7 49,7 @@
 #define KSTACK		4096			/* Size of kernel stack */
 #define ROMBIOS		(KZERO|0xF0000)
 #define	ISAMEMSIZE	(4*MB)			/* mem space reserved for ISA */
-#define globalmem(x)	(((ulong)x)&KZERO)	/* addresses valid in all contexts */
+#define globalmem(x)	((((ulong)x)&0xF0000000)==KZERO)	/* addresses valid in all contexts */
 
 #define	MACHSIZE	4096
 

@@ 818,8 818,6 @@ procctlmemio(Proc *p, ulong offset, int n, void *va, int read)
 	if(read == 0)
 		p->newtlb = 1;
 
-	qunlock(&s->lk);
-
 	return n;
 }