d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

document that PAE kernels needs twice the value of non-PAE kernels

Browse Source 
for KVA_PAGES, and that it it likely needed for >4GB memory boxes..

MFC after:	3 days
This commit is contained in:
John-Mark Gurney 2006-09-13 01:23:08 +00:00
parent 8a0b22718a
commit c14c65ed52
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/i386/conf/NOTES
View File

@ -1045,7 +1045,11 @@ options PMAP_SHPGPERPROC=201
# constraints in loader(8) on i386, this must be a multiple of 4.
# 256 = 1 GB of kernel address space. Increasing this also causes
# a reduction of the address space in user processes. 512 splits
# the 4GB cpu address space in half (2GB user, 2GB kernel).
# the 4GB cpu address space in half (2GB user, 2GB kernel). For PAE
# kernels, the value will need to be double non-PAE. A value of 1024
# for PAE kernels is necessary to split the address space in half.
# This will likely need to be increased to handle memory sizes >4GB.
# PAE kernels default to a value of 512.
#
options KVA_PAGES=260