K 10
svn:author
V 3
jah
K 8
svn:date
V 27
2021-02-24T00:02:59.591251Z
K 7
svn:log
V 626
Fix divide-by-zero panic when ASLR is enabled and superpages disabled

When locating the anonymous memory region for a vm_map with ASLR
enabled, we try to keep the slid base address aligned on a superpage
boundary to minimize pagetable fragmentation and maximize the potential
usage of superpage mappings.  We can't (portably) do this if superpages
have been disabled by loader tunable and pagesizes[1] is 0, and it
would be less beneficial in that case anyway.

PR:		253511

(cherry picked from commit 41032835dc2d489ec7841d7529f74f6389329cd3)

Git Hash:   941747f63cfa127248e6c7246f75c5ac5e142fcc
Git Author: jah@FreeBSD.org
END