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Fixed bug in vm_mmap() where the object that is created in some cases

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was the wrong size. This is the likely cause of panics reported by
Lars Fredriksen and Paul Richards related to a -1 blkno when paging
via the swap_pager.

Submitted by:	John Dyson
This commit is contained in:
David Greenman 1995-03-22 05:08:41 +00:00
parent 3a46066496
commit 8f4e17d4b2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=7239
1 changed files with 2 additions and 2 deletions
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4
sys/vm/vm_mmap.c
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@ -38,7 +38,7 @@
* from: Utah $Hdr: vm_mmap.c 1.6 91/10/21$
*
* @(#)vm_mmap.c 8.4 (Berkeley) 1/12/94
* $Id: vm_mmap.c,v 1.16 1995/03/21 02:54:04 davidg Exp $
* $Id: vm_mmap.c,v 1.17 1995/03/21 10:15:52 davidg Exp $
*/
/*
@ -745,7 +745,7 @@ vm_mmap(map, addr, size, prot, maxprot, flags, handle, foff)
* user_object. Since we don't map 'object', we want
* only this one reference.
*/
user_object = vm_object_allocate( size);
user_object = vm_object_allocate(object->size);
user_object->shadow = object;
TAILQ_INSERT_TAIL(&object->reverse_shadow_head,
user_object, reverse_shadow_list);