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(parent: 5f61f8e) | patch
When creating a shadow vm_object in vmspace_fork(), only one
authoriedowse <iedowse@FreeBSD.org>
Fri, 9 Mar 2001 18:25:54 +0000 (18:25 +0000)
committeriedowse <iedowse@FreeBSD.org>
Fri, 9 Mar 2001 18:25:54 +0000 (18:25 +0000)
commit80d8e16746a7e6c767e69f1dd26ae918524229ad
tree1f256d86ecdfe876c294d6332c35a4cdc05665a5tree | snapshot
parent5f61f8e47fe91c807dbc013e22e954c3cbc46586commit | diff
When creating a shadow vm_object in vmspace_fork(), only one
reference count was transferred to the new object, but both the
new and the old map entries had pointers to the new object.
Correct this by transferring the second reference.

This fixes a panic that can occur when mmap(2) is used with the
MAP_INHERIT flag.

PR: i386/25603
Reviewed by: dillon, alc
sys/vm/vm_map.c diff | blob | history
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