svn commit: r247314 - head/sys/arm/include

[Alan Cox]

Author: alc
Date: Tue Feb 26 08:17:34 2013
New Revision: 247314
URL: http://svnweb.freebsd.org/changeset/base/247314

Log:
  Be more conservative in auto-sizing and capping the kmem submap.  In
  fact, use the same values here that we use on 32-bit x86 and MIPS.  Some
  machines were reported to have problems with the more aggressive values.
  
  Reported and tested by:	andrew

Modified:
  head/sys/arm/include/vmparam.h

Modified: head/sys/arm/include/vmparam.h
==============================================================================
--- head/sys/arm/include/vmparam.h	Tue Feb 26 07:41:34 2013	(r247313)
+++ head/sys/arm/include/vmparam.h	Tue Feb 26 08:17:34 2013	(r247314)
@@ -142,15 +142,15 @@
 #define VM_KMEM_SIZE		(12*1024*1024)
 #endif
 #ifndef VM_KMEM_SIZE_SCALE
-#define VM_KMEM_SIZE_SCALE	(2)
+#define VM_KMEM_SIZE_SCALE	(3)
 #endif
 
 /*
- * Ceiling on the size of the kmem submap: 60% of the kernel map.
+ * Ceiling on the size of the kmem submap: 40% of the kernel map.
  */
 #ifndef VM_KMEM_SIZE_MAX
 #define	VM_KMEM_SIZE_MAX	((vm_max_kernel_address - \
-    VM_MIN_KERNEL_ADDRESS + 1) * 3 / 5)
+    VM_MIN_KERNEL_ADDRESS + 1) * 2 / 5)
 #endif
 
 #define MAXTSIZ 	(16*1024*1024)