svn commit: r216016 - head/sys/sparc64/include

[Max Khon]

Author: fjoe
Date: Sun Nov 28 19:26:20 2010
New Revision: 216016
URL: http://svn.freebsd.org/changeset/base/216016

Log:
  Define VM_KMEM_SIZE_MAX on sparc64. Otherwise kernel built with
  DEBUG_MEMGUARD panics early in kmeminit() with the message
  "kmem_suballoc: bad status return of 1" because of zero "size" argument
  passed to kmem_suballoc() due to "vm_kmem_size_max" being zero.
  
  The problem also exists on ia64.

Modified:
  head/sys/sparc64/include/vmparam.h

Modified: head/sys/sparc64/include/vmparam.h
==============================================================================
--- head/sys/sparc64/include/vmparam.h	Sun Nov 28 18:59:52 2010	(r216015)
+++ head/sys/sparc64/include/vmparam.h	Sun Nov 28 19:26:20 2010	(r216016)
@@ -237,6 +237,14 @@
 #endif
 
 /*
+ * Ceiling on amount of kmem_map kva space.
+ */
+#ifndef VM_KMEM_SIZE_MAX
+#define	VM_KMEM_SIZE_MAX	((VM_MAX_KERNEL_ADDRESS - \
+    VM_MIN_KERNEL_ADDRESS + 1) * 3 / 5)
+#endif
+
+/*
  * Initial pagein size of beginning of executable file.
  */
 #ifndef	VM_INITIAL_PAGEIN