diff options
| author | Ted Unangst <tedu@cvs.openbsd.org> | 2014-07-08 22:30:27 +0000 |
|---|---|---|
| committer | Ted Unangst <tedu@cvs.openbsd.org> | 2014-07-08 22:30:27 +0000 |
| commit | c8f531c36565995ad1c89ffe27999c9661228d88 (patch) | |
| tree | 1728153ac942df7906101cc4a169e52b29e3ae24 | |
| parent | f3b47ee5cfbc62a268f8d3770f2549ae7f45c625 (diff) | |
also use inverted poison patterns, to mix things up. ok deraadt miod
| -rw-r--r-- | sys/kern/subr_poison.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/kern/subr_poison.c b/sys/kern/subr_poison.c index b2768e92d67..580406f60e2 100644 --- a/sys/kern/subr_poison.c +++ b/sys/kern/subr_poison.c @@ -1,4 +1,4 @@ -/* $OpenBSD: subr_poison.c,v 1.9 2014/07/08 17:42:50 miod Exp $ */ +/* $OpenBSD: subr_poison.c,v 1.10 2014/07/08 22:30:26 tedu Exp $ */ /* * Copyright (c) 2013 Ted Unangst <tedu@openbsd.org> * @@ -44,7 +44,17 @@ poison_value(void *v) l = l >> PAGE_SHIFT; - return (l & 1) ? POISON0 : POISON1; + switch (l & 3) { + case 0: + return POISON0; + case 1: + return POISON1; + case 2: + return ~POISON0; + case 3: + return ~POISON1; + } + return 0; } void |