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authoralc <alc@FreeBSD.org>1999-07-21 18:02:27 +0000
committeralc <alc@FreeBSD.org>1999-07-21 18:02:27 +0000
commit279eafd09f2514d288cf449bcb7edca19ea31d50 (patch)
tree2b71e9fdd68c718169f98753b2d8da9e09b69bf8 /sys/vm/pmap.h
parentcd7ecc6fc022e270d89e62000744e4a6d41d0465 (diff)
downloadFreeBSD-src-279eafd09f2514d288cf449bcb7edca19ea31d50.zip
FreeBSD-src-279eafd09f2514d288cf449bcb7edca19ea31d50.tar.gz
Fix the following problem:
When creating new processes (or performing exec), the new page directory is initialized too early. The kernel might grow before p_vmspace is initialized for the new process. Since pmap_growkernel doesn't yet know about the new page directory, it isn't updated, and subsequent use causes a failure. The fix is (1) to clear p_vmspace early, to stop pmap_growkernel from stomping on memory, and (2) to defer part of the initialization of new page directories until p_vmspace is initialized. PR: kern/12378 Submitted by: tegge Reviewed by: dfr
Diffstat (limited to 'sys/vm/pmap.h')
-rw-r--r--sys/vm/pmap.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/pmap.h b/sys/vm/pmap.h
index 0e7d1ae..32d1846 100644
--- a/sys/vm/pmap.h
+++ b/sys/vm/pmap.h
@@ -61,7 +61,7 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
- * $Id: pmap.h,v 1.29 1999/04/05 19:38:29 julian Exp $
+ * $Id: pmap.h,v 1.30 1999/04/23 20:29:57 dt Exp $
*/
/*
@@ -121,6 +121,7 @@ void pmap_pageable __P((pmap_t, vm_offset_t, vm_offset_t,
vm_offset_t pmap_phys_address __P((int));
void pmap_pinit __P((pmap_t));
void pmap_pinit0 __P((pmap_t));
+void pmap_pinit2 __P((pmap_t));
void pmap_protect __P((pmap_t, vm_offset_t, vm_offset_t,
vm_prot_t));
void pmap_qenter __P((vm_offset_t, vm_page_t *, int));
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