--- wikisrc/kernel_debugging_with_qemu.mdwn	2015/02/19 09:37:14	1.9
+++ wikisrc/kernel_debugging_with_qemu.mdwn	2018/03/08 16:55:27	1.14
@@ -26,12 +26,13 @@ install the most recent anita package fr
 
 ## Building the target system
 
-Check out the NetBSD-current sources from CVS and build a full
-NetBSD-current/i386 release with debug symbols using the build.sh
-script.  The i386 port is the preferred test platform because the two
-other ports supported by anita are affected by known bugs: amd64 by
-[[PR 49276|http://gnats.NetBSD.org/49276]], and sparc by
-[[qemu bug 1335444|https://bugs.launchpad.net/qemu/+bug/1335444]].
+Check out the NetBSD-current sources from CVS and build a full release
+of NetBSD-current/i386 with debug symbols using the build.sh script.
+The i386 port is preferred because these instructions have been 
+successfully tested with it.
+The amd64 port won't work because of [[PR 50128|http://gnats.NetBSD.org/50128]],
+and sparc has not been tested since [[qemu bug
+1399943|https://bugs.launchpad.net/qemu/+bug/1399943]] was fixed.
 
 If you do the build in a directory other than /usr/src, 
 use the -fdebug-prefix-map option to ensure that the source file names embedded
@@ -73,7 +74,7 @@ First start the target VM, enabling qemu
 on TCP port 1234:
 
 [[!template  id=programlisting text="""
- $ qemu-system-i386 -nographic -snapshot -hda work/wd0.img -gdb tcp::1234
+ $ qemu-system-i386 -nographic -snapshot -hda work/wd0.img -m 128 -gdb tcp::1234
 """]]
 
 If you don't want everyone on the Internet to be able to debug your
@@ -83,7 +84,7 @@ your firewall.
 In a second terminal window, start the gdb VM:
 
 [[!template  id=programlisting text="""
- $ qemu-system-i386 -nographic -snapshot -hda work/wd0.img
+ $ qemu-system-i386 -nographic -snapshot -hda work/wd0.img -m 256
 """]]
 
 Log in to the gdb VM as root and set up the network: