Author: sbruno
Date: Mon Sep 22 05:07:22 2014
New Revision: 271944
URL: http://svnweb.freebsd.org/changeset/base/271944
Log:
svn revisions r269964 and r269963 seemed to have impaired small memory
footprint systems(32M/64M) and didn't leave enough free memory to load modules
when it was setting up page tables that for sizes that are never used on
these smallish boards.
Set kmem_zmax to PAGE_SIZE on these smaller systems (< 128M) to keep this
from happening. Verified on mips32 h/w.
PR: 193465
Submitted by: delphij
Reviewed by: adrian
Modified:
head/sys/kern/kern_malloc.c
Modified: head/sys/kern/kern_malloc.c
==============================================================================
--- head/sys/kern/kern_malloc.c Mon Sep 22 05:00:55 2014 (r271943)
+++ head/sys/kern/kern_malloc.c Mon Sep 22 05:07:22 2014 (r271944)
@@ -717,6 +717,8 @@ kmeminit(void)
* a given architecture.
*/
mem_size = vm_cnt.v_page_count;
+ if (mem_size <= 32768) /* delphij XXX 128MB */
+ kmem_zmax = PAGE_SIZE;
if (vm_kmem_size_scale < 1)
vm_kmem_size_scale = VM_KMEM_SIZE_SCALE;
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