diff options
| -rw-r--r-- | sys/uvm/uvm_amap.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/uvm/uvm_amap.c b/sys/uvm/uvm_amap.c index de6bea7db3e..6bb844233e9 100644 --- a/sys/uvm/uvm_amap.c +++ b/sys/uvm/uvm_amap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_amap.c,v 1.23 2002/02/19 17:57:34 provos Exp $ */ +/* $OpenBSD: uvm_amap.c,v 1.24 2002/02/20 20:16:23 provos Exp $ */ /* $NetBSD: uvm_amap.c,v 1.27 2000/11/25 06:27:59 chs Exp $ */ /* @@ -954,7 +954,8 @@ amap_pp_adjref(amap, curslot, slotlen, adjval) } prevlcv = lcv; } - pp_getreflen(ppref, prevlcv, &prevref, &prevlen); + if (prevlcv >= 0) + pp_getreflen(ppref, prevlcv, &prevref, &prevlen); /* * now adjust reference counts in range. merge the first @@ -975,7 +976,8 @@ amap_pp_adjref(amap, curslot, slotlen, adjval) ref += adjval; if (ref < 0) panic("amap_pp_adjref: negative reference count"); - if (lcv == prevlcv + prevlen && ref == prevref) { + if (prevlcv >= 0 && lcv == prevlcv + prevlen && + ref == prevref) { pp_setreflen(ppref, prevlcv, ref, prevlen + len); } else { pp_setreflen(ppref, lcv, ref, len); |