diff options
| author | Artur Grabowski <art@cvs.openbsd.org> | 2007-05-04 05:52:29 +0000 |
|---|---|---|
| committer | Artur Grabowski <art@cvs.openbsd.org> | 2007-05-04 05:52:29 +0000 |
| commit | 68f77dc4f4db627cef2b25bdd3be58fdd7463014 (patch) | |
| tree | 0cd3b8b0bd0d8e9b87b3812262a357fa9ff9f2f5 | |
| parent | bd87afc06722af632f27eade876798041a856533 (diff) | |
Skip the kernel pmap when accounting for executability range changes.
This could lead to some heavy problems if called from kernel threads
(which is the only way to get past the next test with the kernel
pmap).
From mickey. art@ toby@ ok.
| -rw-r--r-- | sys/arch/i386/i386/pmap.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/arch/i386/i386/pmap.c b/sys/arch/i386/i386/pmap.c index 7a4ae7c0ba9..6da351b9adf 100644 --- a/sys/arch/i386/i386/pmap.c +++ b/sys/arch/i386/i386/pmap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.c,v 1.108 2007/05/03 05:32:05 art Exp $ */ +/* $OpenBSD: pmap.c,v 1.109 2007/05/04 05:52:28 art Exp $ */ /* $NetBSD: pmap.c,v 1.91 2000/06/02 17:46:37 thorpej Exp $ */ /* @@ -644,6 +644,9 @@ void pmap_exec_account(struct pmap *pm, vaddr_t va, pt_entry_t opte, pt_entry_t npte) { + if (pm == pmap_kernel()) + return; + if (curproc == NULL || curproc->p_vmspace == NULL || pm != vm_map_pmap(&curproc->p_vmspace->vm_map)) return; |