2 files changed, 6 insertions(+), 1 deletions(-)

M port/devbit.c
M port/fault.c

@@ 732,7 732,7 @@ bitread(Chan *c, void *va, long n, ulong offset)
 			error(Ebadblt);
 		for(j = 0; j < nw; j++){
 			if(bit.mid == 0){
-				getcolor(flipping? ~j : j, &rv, &gv, &bv);
+				getcolor(flipping? nw-j-1 : j, &rv, &gv, &bv);
 			}else{
 				rv = j;
 				for(off = 32-l; off > 0; off -= l)

@@ 80,6 80,11 @@ fixfault(Segment *s, ulong addr, int read, int doputmmu)
 		if(pagedout(*pg))
 			pio(s, addr, soff, pg);
 
+		lkp = *pg;
+		lock(lkp);
+		if(lkp->image)     
+			duppage(lkp);	
+		unlock(lkp);
 		goto done;
 
 	case SG_BSS: