[src/trunk]: src/sys/rump/librump/rumpkern simply issue a warning if <1MB RAM...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/cad5b6e8e445
branches:  trunk
changeset: 326784:cad5b6e8e445
user:      pooka <pooka%NetBSD.org@localhost>
date:      Mon Feb 17 19:43:52 2014 +0000

description:
simply issue a warning if <1MB RAM configured.  it might work, but
not going to start enumerating when and where it might.

diffstat:

 sys/rump/librump/rumpkern/vm.c |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (31 lines):

diff -r 18e78211143d -r cad5b6e8e445 sys/rump/librump/rumpkern/vm.c
--- a/sys/rump/librump/rumpkern/vm.c    Mon Feb 17 19:33:05 2014 +0000
+++ b/sys/rump/librump/rumpkern/vm.c    Mon Feb 17 19:43:52 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vm.c,v 1.147 2014/02/17 19:33:05 pooka Exp $   */
+/*     $NetBSD: vm.c,v 1.148 2014/02/17 19:43:52 pooka Exp $   */
 
 /*
  * Copyright (c) 2007-2011 Antti Kantee.  All Rights Reserved.
@@ -41,7 +41,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vm.c,v 1.147 2014/02/17 19:33:05 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vm.c,v 1.148 2014/02/17 19:43:52 pooka Exp $");
 
 #include <sys/param.h>
 #include <sys/atomic.h>
@@ -306,9 +306,9 @@
                if (rump_physmemlimit / mult != tmp)
                        panic("uvm_init: RUMP_MEMLIMIT overflow: %s", buf);
                /* it's not like we'd get far with, say, 1 byte, but ... */
-               if (rump_physmemlimit < 2*MAXPHYS)
-                       panic("uvm_init: no memory, need at least %d bytes",
-                           2*MAXPHYS);
+               if (rump_physmemlimit < 1024*1024)
+                       printf("uvm_init: WARNING: <1MB RAM limit, "
+                           "hope you know what you're doing\n");
 
                /* reserve some memory for the pager */
                pdlimit = rump_physmemlimit;