diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2007-05-09 11:23:36 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2007-05-09 11:23:36 +0000 |
| commit | 21cccc0bcca7cb984d889e4c3e034069d14d7e6d (patch) | |
| tree | 60ac735b83d620c52f719816eaebc9922cfde7e0 | |
| parent | 955d81904a8c94e88b8325d7ed7d48c8585977e9 (diff) | |
Truncate the addresses for the deadbeef values so that they don't need
to be page aligned and can contain more "noise".
From mickey art@ ok
| -rw-r--r-- | sys/uvm/uvm_init.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/uvm/uvm_init.c b/sys/uvm/uvm_init.c index 2f33534d941..448baed5021 100644 --- a/sys/uvm/uvm_init.c +++ b/sys/uvm/uvm_init.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_init.c,v 1.14 2007/04/12 21:47:46 miod Exp $ */ +/* $OpenBSD: uvm_init.c,v 1.15 2007/05/09 11:23:35 art Exp $ */ /* $NetBSD: uvm_init.c,v 1.14 2000/06/27 17:29:23 mrg Exp $ */ /* @@ -156,14 +156,14 @@ uvm_init() * reserve some unmapped space for malloc/pool use after free usage */ #ifdef DEADBEEF0 - kvm_start = DEADBEEF0 - PAGE_SIZE; + kvm_start = trunc_page(DEADBEEF0) - PAGE_SIZE; if (uvm_map(kernel_map, &kvm_start, 3 * PAGE_SIZE, NULL, UVM_UNKNOWN_OFFSET, 0, UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, UVM_ADV_RANDOM, UVM_FLAG_FIXED))) panic("uvm_init: cannot reserve dead beef @0x%x\n", DEADBEEF0); #endif #ifdef DEADBEEF1 - kvm_start = DEADBEEF1 - PAGE_SIZE; + kvm_start = trunc_page(DEADBEEF1) - PAGE_SIZE; if (uvm_map(kernel_map, &kvm_start, 3 * PAGE_SIZE, NULL, UVM_UNKNOWN_OFFSET, 0, UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE, UVM_INH_NONE, UVM_ADV_RANDOM, UVM_FLAG_FIXED))) |